"Unable to create instance of screen class" exception while creating editor

I have an entity browser in my application (PrototypeActivity.browse) which calls an editor. I was trying to add code in the editor to access an application parameter and then I began facing this exception when the “Edit” button was clicked.
The editor called is Activity.edit and it appears this screen is failing to be built from the XML. I did not make any changes to the editor´s XML.
Error message and stack trace are below:

RuntimeException: Unable to create instance of screen class class com.calidus.pdcs.screen.activity.ActivityEdit
java.lang.RuntimeException: Unable to create instance of screen class class com.calidus.pdcs.screen.activity.ActivityEdit
at io.jmix.ui.sys.ScreensImpl.createController(ScreensImpl.java:849)
at io.jmix.ui.sys.ScreensImpl.createScreen(ScreensImpl.java:169)
at io.jmix.ui.sys.ScreensImpl.create(ScreensImpl.java:145)
at io.jmix.ui.builder.EditorBuilderProcessor.createScreen(EditorBuilderProcessor.java:314)
at io.jmix.ui.builder.EditorBuilderProcessor.buildEditor(EditorBuilderProcessor.java:88)
at io.jmix.ui.builder.EditorBuilder.build(EditorBuilder.java:355)
at io.jmix.ui.action.list.EditAction.execute(EditAction.java:363)
at io.jmix.ui.action.list.EditAction.actionPerform(EditAction.java:324)
at io.jmix.ui.component.impl.ButtonImpl.buttonClicked(ButtonImpl.java:75)
at io.jmix.ui.widget.JmixButton.fireClick(JmixButton.java:77)
at com.vaadin.ui.Button$1.click(Button.java:57)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:153)
at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:115)
at com.vaadin.server.communication.ServerRpcHandler.handleInvocation(ServerRpcHandler.java:442)
at com.vaadin.server.communication.ServerRpcHandler.handleInvocations(ServerRpcHandler.java:407)
at com.vaadin.server.communication.ServerRpcHandler.handleRpc(ServerRpcHandler.java:275)
at com.vaadin.server.communication.UidlRequestHandler.synchronizedHandleRequest(UidlRequestHandler.java:83)
at com.vaadin.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:40)
at com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1636)
at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:465)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:750)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:209)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
at io.jmix.core.impl.logging.LogMdcFilter.doFilterInternal(LogMdcFilter.java:28)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:337)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:115)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:81)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:122)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:116)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346)
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:126)
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:81)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346)
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:109)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346)
at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:106)
at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:97)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346)
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:149)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346)
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346)
at org.springframework.security.web.session.ConcurrentSessionFilter.doFilter(ConcurrentSessionFilter.java:147)
at org.springframework.security.web.session.ConcurrentSessionFilter.doFilter(ConcurrentSessionFilter.java:125)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346)
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:103)
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:89)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346)
at org.springframework.security.web.header.HeaderWriterFilter.doHeadersAfter(HeaderWriterFilter.java:90)
at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:75)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:112)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:82)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346)
at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:55)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346)
at org.springframework.security.web.session.DisableEncodeUrlFilter.doFilterInternal(DisableEncodeUrlFilter.java:42)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346)
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:221)
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:186)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:354)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:267)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:168)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:481)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:130)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:390)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:928)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1794)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.base/java.lang.Thread.run(Thread.java:834)

The code and XML for both the browser and editor are shown below:

package com.calidus.pdcs.screen.activity;

import com.calidus.pdcs.entity.products.Prototype;
.
.
.
@UiController("PrototypeActivity.browse")
@UiDescriptor("prototype-activity-browse.xml")
@LookupComponent("activitiesTable")
public class PrototypeActivityBrowse extends StandardLookup<Activity> {
    private Prototype prototype;
    @Autowired
    private CollectionLoader<Activity> activitiesDl;
    @Autowired
    private ScreenBuilders screenBuilders;
    @Autowired
    Label<String> proModelLabel;
    @Autowired
    Label<String> pttSerialNumberLabel;
    @Autowired
    DataManager dataManager;
    @Subscribe
    public void onInit(InitEvent event) {
        ScreenOptions options = event.getOptions();
        if (options instanceof PrototypeActivityOptions) {
            this.prototype = ((PrototypeActivityOptions) options).getPrototype();
            proModelLabel.setValue(prototype.getPttPro().getProModel().trim());
            pttSerialNumberLabel.setValue(prototype.getPttSerialNumber());
        }
        else{
            this.prototype = null;
        }
    }
    protected void loadActivities() {
        activitiesDl.load();
    }
    @Subscribe("activitiesTable.create")
    public void onActivitiesTableCreate(Action.ActionPerformedEvent event) {
        screenBuilders.editor(Activity.class,this)
                .withInitializer(e->{ e.setActPtt(prototype);
                                        e.setActCreationDate(LocalDateTime.now());
                                        e.setActLastChangeDate(LocalDateTime.now());
                                    })
                .newEntity()
                .build()
                .show()
                .addAfterCloseListener(e->loadActivities());
    }
    @Install(to = "activitiesDl", target = Target.DATA_LOADER)
    protected List<Activity> activitiesDlLoadDelegate(LoadContext<Activity> loadContext) {
        // Load the activities for a prototype
        return dataManager.load(Activity.class)
                .query( "select act from Activity act" +
                        "                     where act.actPtt = :ptpp")
                .parameter("ptpp", this.prototype)
                .list();
    }
}

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<window xmlns="http://jmix.io/schema/ui/window"
        xmlns:c="http://jmix.io/schema/ui/jpql-condition"
        caption="msg://prototypeActivityBrowse.caption"
        focusComponent="activitiesTable">
    <data readOnly="true">
        <collection id="activitiesDc"
                    class="com.calidus.pdcs.entity.activities.Activity">
            <fetchPlan extends="_base"/>
            <loader id="activitiesDl">
            </loader>
        </collection>
    </data>
    <facets>
        <screenSettings id="settingsFacet" auto="true"/>
        <dataLoadCoordinator auto="true"/>
    </facets>
    <actions>
        <action id="lookupSelectAction"
                caption="msg:///actions.Select"
                icon="LOOKUP_OK"
                primary="true"
                shortcut="${COMMIT_SHORTCUT}"/>
        <action id="lookupCancelAction"
                caption="msg:///actions.Cancel"
                icon="LOOKUP_CANCEL"/>
    </actions>
    <dialogMode height="600"
                width="800"/>
    <layout expand="activitiesTable" spacing="true">
        <hbox spacing="false">
            <label value="Prototype: " stylename="h2"/>
            <label id="proModelLabel" stylename="h2"/>
            <label value="-" stylename="h2"/>
            <label id="pttSerialNumberLabel" stylename="h2"/>
        </hbox>
        <filter id="filter"
                dataLoader="activitiesDl">
            <properties include=".*"/>
        </filter>
        <table id="activitiesTable"
               width="100%"
               dataContainer="activitiesDc">
            <actions>
                <action id="create" type="create"/>
                <action id="edit" type="edit"/>
                <action id="remove" type="remove"/>
            </actions>
            <columns>
                <column id="actOrder" caption="msg://com.calidus.pdcs.screen.activity/prototypeActivityBrowse.actOrder"/>
                <column id="actName" caption="msg://com.calidus.pdcs.screen.activity/prototypeActivityBrowse.actName"/>
                <column id="actCreationDate"
                        caption="msg://com.calidus.pdcs.screen.activity/prototypeActivityBrowse.actCreationDate"/>
                <column id="actStartDate"
                        caption="msg://com.calidus.pdcs.screen.activity/prototypeActivityBrowse.actStartDate"/>
                <column id="actEndDate"
                        caption="msg://com.calidus.pdcs.screen.activity/prototypeActivityBrowse.actEndDate"/>
                <column id="actType"/>
                <column id="actReason"/>
            </columns>
            <simplePagination/>
            <buttonsPanel id="buttonsPanel"
                          alwaysVisible="true">
                <button id="createBtn" stylename="small" action="activitiesTable.create"/>
                <button id="editBtn" stylename="small" action="activitiesTable.edit"/>
                <button id="removeBtn" stylename="small" action="activitiesTable.remove"/>
            </buttonsPanel>
        </table>
        <hbox id="lookupActions" spacing="true" visible="false">
            <button action="lookupSelectAction"/>
            <button action="lookupCancelAction"/>
        </hbox>
    </layout>
</window>

package com.calidus.pdcs.screen.activity;

import com.calidus.pdcs.core.WxCGCalculator;
.
.
.
@UiController("Activity.edit")
@UiDescriptor("activity-edit.xml")
@EditedEntityContainer("activityDc")
public class ActivityEdit extends StandardEditor<Activity> implements EntityChangeListener {
    @Autowired
    private FileStorageLocator fileStorageLocator;
    protected FileStorage fileStorage = fileStorageLocator.getDefault();
    @Autowired
    private TaskBrowserEditorFragment actTasks;
    @Autowired
    private TabSheet actTabs;
    @Autowired
    private Button saveBtn;
    @Autowired
    private Button commitAndCloseBtn;
    @Autowired
    private Table<FtiParameter> actFpmsTable;
    @Autowired
    ActivityWcgFragment actWCGFrag;
    @Autowired
    private WcgGraphFragment xWCgGraph;
    @Autowired
    private WcgGraphFragment yWCgGraph;
    @Autowired
    Messages messages;
    @Autowired
    private TextField<String> actNameField;
    @Autowired
    protected DataContext dataContext;
    @Autowired
    protected CollectionContainer<FtiParameter>actFpmsDc;
    @Value("${app.storage.activity.descr.folder}")
    protected String actDescrFolder;

    public String getActDescrFolder() {
        return actDescrFolder;
    }
    @Subscribe
    public void onBeforeShow(BeforeShowEvent event) {
        // Initialize dependent fragments
        actWCGFrag.setEntityChangeListener(this);
        actTasks.setEntityChangeListener(this);
    }
    private void updateGraphs(){
        // Update the WxCG graphs
        // Set the X and Y CG graphs
        Product product = this.getEditedEntity().getActPtt().getPttPro();
        this.xWCgGraph.setProduct(product);
        this.xWCgGraph.clearWcgPath();
        this.xWCgGraph.setAcftAxis(AcftAxis.X);
        this.xWCgGraph.setGraphTitle(messages.getMessage("com.calidus.pdcs.screen.activity/activityEdit.tsWCG.xWCGGraph.caption"));
        this.yWCgGraph.setProduct(product);
        this.yWCgGraph.clearWcgPath();
        this.yWCgGraph.setAcftAxis(AcftAxis.Y);
        this.yWCgGraph.setGraphTitle(messages.getMessage("com.calidus.pdcs.screen.activity/activityEdit.tsWCG.yWCGGraph.caption"));
        List<WxCGCalculator> wCGStates = this.actWCGFrag.getwCGStates();
        for (WxCGCalculator wcgCalculator:wCGStates){
            XYSeries xSeries = new XYSeries(wcgCalculator.getCalcDataSz());
            XYSeries ySeries = new XYSeries(wcgCalculator.getCalcDataSz());
            for (int i=0; i<wcgCalculator.getCalcDataSz();i++){
                xSeries.setData(i, (double) wcgCalculator.getXCG()[i], (double) wcgCalculator.getTotalWeight()[i]);
                ySeries.setData(i, (double) wcgCalculator.getYCG()[i], (double) wcgCalculator.getTotalWeight()[i]);
            }
            xSeries.setColor(String.format("%06X", Color.BLACK.getRGB() & 0xffffff));
            ySeries.setColor(String.format("%06X", Color.BLACK.getRGB() & 0xffffff));
            this.xWCgGraph.addWcgPath(xSeries);
            this.yWCgGraph.addWcgPath(ySeries);
        }
        this.xWCgGraph.refresh();
        this.yWCgGraph.refresh();
    }
    private void onDataChange() {
        // Handles the change of any data related to this activity
        // Set the last changed timestamp for force the activity to be saved
        // and the related entities to be saved by cascading
        this.getEditedEntity().setActLastChangeDate(LocalDateTime.now());
        if ((actTabs.getSelectedTab() != null) && (actTabs.getSelectedTab().getName().equals("tsWCG"))) {
            // Recalculate the Weight and CG information
            actWCGFrag.recalculate();
            // Update the WCG graphs
            updateGraphs();
        }
    }
    @Subscribe("actTabs")
    public void onActTabsSelectedTabChange(TabSheet.SelectedTabChangeEvent event) {
        TabSheet.Tab selectedTab = event.getSelectedTab();
        if (selectedTab.getName().equals("tsTasks")) {
            // Load the tasks for this activity on the tasks browser fragment
            actTasks.refresh();
        }
        else {
            if (selectedTab.getName().equals("tsWCG")) {
                // Refresh the WCG tabs
                actWCGFrag.refresh();
                // Recalculate the Weight and CG information
                actWCGFrag.recalculate();
                // Update the WCG graphs
                updateGraphs();
            }
            else {
                if (selectedTab.getName().equals("tsActDescrDoc")) {
//                    FileRef descrDocRef = new FileRef(fileStorage.getStorageName(), actDescrFolder, "teste.doc");
                } else {

                }
            }
        }
    }
    public void onEntityChange(Entity entity) {
        // Handle changes done to the current instance
        onDataChange();
    }
    public Entity getEditedInstance() {
        // Returns the entity instance being edited
        return (Entity) getEditedEntity();
    }
    public DataContext getDataContext(){
        return dataContext;
    }
    @Install(to = "actFpmsTable.add", subject = "screenOptionsSupplier")
    private ScreenOptions actFpmsTableAddScreenOptionsSupplier() {
        return new FtiParameterOptions(this.getEditedEntity().getActPtt().getPttPro()
                                     , new HashSet<>(this.actFpmsTable.getItems().getItems()));
    }
}

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<window xmlns="http://jmix.io/schema/ui/window"
        caption="msg://activityEdit.caption"
        focusComponent="form">
    <data>
        <instance id="activityDc"
                  class="com.calidus.pdcs.entity.activities.Activity">
            <fetchPlan extends="_base">
                <property name="actPtt" fetchPlan="_base" fetch="JOIN">
                    <property name="pttPro" fetchPlan="_base" fetch="JOIN"/>
                </property>
                <property name="actTsks" fetchPlan="_base">
                    <property name="tskLdis" fetchPlan="_base" fetch="JOIN">
                        <property name="ldiPmi" fetchPlan="_base" fetch="JOIN">
                            <property name="pmiMias" fetchPlan="_base" fetch="JOIN"/>
                        </property>
                    </property>
                </property>
                <property name="actFpms" fetchPlan="_base"/>
            </fetchPlan>
            <loader/>
            <collection id="actFpmsDc" property="actFpms"/>
        </instance>
    </data>
    <facets>
        <dataLoadCoordinator auto="true"/>
        <screenSettings id="settingsFacet" auto="true"/>
    </facets>
    <actions>
        <action id="windowCommitAndClose" caption="msg:///actions.Ok"
                icon="EDITOR_OK"
                primary="true"
                shortcut="${COMMIT_SHORTCUT}"/>
        <action id="windowClose"
                caption="msg:///actions.Close"
                icon="EDITOR_CANCEL"/>
        <action id="windowCommit"
                caption="msg://com.calidus.pdcs.screen.taskdefinition/taskDefinitionEdit.saveChanges"
                icon="font-icon:SAVE"/>
    </actions>
    <dialogMode height="AUTO"
                width="AUTO"
                modal="true"/>
    <layout spacing="true" expand="editActions">
        <form id="form" dataContainer="activityDc" width="100%" align="TOP_CENTER">
            <column width="100%">
                <textField id="actNameField"
                           property="actName"
                           caption="msg://com.calidus.pdcs.screen.activity/activityEdit.actName.caption"/>
                <!--                <dateField id="actCreationDateField" property="actCreationDate"/>-->
                <!--                <dateField id="actStartDateField" property="actStartDate"/>-->
                <!--                <dateField id="actEndDateField" property="actEndDate"/>-->
                <tabSheet id="actTabs" width="100%" align="TOP_CENTER">
                    <tab id="tsMain"
                         caption="msg://com.calidus.pdcs.screen.activity/activityEdit.tsMain.caption"
                         margin="true"
                         spacing="true"
                         expand="actDescrField">
                        <comboBox id="actTypeField"
                                  property="actType"
                                  caption="msg://com.calidus.pdcs.screen.activity/activityEdit.actType.caption"
                                  dataContainer="activityDc"
                                  optionsEnum="com.calidus.pdcs.screen.activity.ActivityType"/>
                        <comboBox id="actReasonField"
                                  property="actReason"
                                  caption="msg://com.calidus.pdcs.screen.activity/activityEdit.actReason.caption"
                                  dataContainer="activityDc"
                                  optionsEnum="com.calidus.pdcs.screen.activity.ActivityReason"/>
                        <textArea id="actDescrField"
                                  property="actDescr"
                                  dataContainer="activityDc"
                                  width="100%"/>
                    </tab>
                    <tab id="tsConfig"
                         caption="msg://com.calidus.pdcs.screen.activity/activityEdit.tsConfig.caption"
                         margin="true"
                         spacing="true">
                        <richTextArea id="actConfigSpecField"
                                      width="100%"
                                      dataContainer="activityDc"
                                      property="actConfigSpec"/>
                    </tab>
                    <tab id="tsWCG"
                         caption="msg://com.calidus.pdcs.screen.activity/activityEdit.tsWCG.caption"
                         margin="true"
                         spacing="true">
                            <hbox width="100%">
                                <fragment id="xWCgGraph" screen="WcgGraphFragment" width="100%"/>
                                <fragment id="yWCgGraph" screen="WcgGraphFragment" width="100%"/>
                            </hbox>
                            <scrollBox id="sbLoads"
                                       width="100%"
                                       height="150px"
                                       spacing="false"
                                       caption="">
                                <fragment id="actWCGFrag" screen="ActivityWcgFragment" width="100%" height="100%"/>
                            </scrollBox>
                    </tab>
                    <tab id="tsActReq"
                         caption="msg://com.calidus.pdcs.screen.activity/activityEdit.tsActReq.caption"
                         margin="true"
                         spacing="true">
                    </tab>
                    <tab id="tsTasks"
                         caption="msg://com.calidus.pdcs.screen.activity/activityEdit.tsTasks.caption"
                         margin="true"
                         spacing="true"
                         expand="actTasks">
                        <fragment id="actTasks" screen="TaskBrowserEditorFragment" width="100%"/>
                    </tab>
                    <tab id="tsFti"
                         caption="msg://com.calidus.pdcs.screen.activity/activityEdit.tsFti.caption"
                         margin="true"
                         spacing="true"
                         expand="actFpmsBox">
                        <groupBox id="actFpmsBox" caption="msg://com.calidus.pdcs.entity.activities/Activity.actFpms" width="100%">
                            <table id="actFpmsTable" dataContainer="actFpmsDc" width="100%" height="100%" align="BOTTOM_LEFT">
                                <actions>
                                    <action id="add" type="add">
                                        <properties>
                                            <property name="openMode" value="DIALOG"/>
                                            <property name="screenClass" value="com.calidus.pdcs.screen.ftiparameter.FtiParameterLookup"/>
                                        </properties>
                                    </action>
                                    <action id="exclude" type="exclude"/>
                                </actions>
                                <columns>
                                    <column id="fpmCode"/>
                                    <column id="fpmName"/>
                                </columns>
                                <buttonsPanel>
                                    <button action="actFpmsTable.add" stylename="small"/>
                                    <button action="actFpmsTable.exclude" stylename="small"/>
                                </buttonsPanel>
                            </table>
                        </groupBox>
                    </tab>
                    <tab id="tsAppr"
                         caption="msg://com.calidus.pdcs.screen.activity/activityEdit.tsAppr.caption"
                         margin="true"
                         spacing="true">
                    </tab>
                    <tab id="tsActRpt"
                         caption="msg://com.calidus.pdcs.screen.activity/activityEdit.tsActRpt.caption"
                         margin="true"
                         spacing="true">
                    </tab>
                    <tab id="tsActDescrDoc"
                         caption="msg://com.calidus.pdcs.screen.activity/activityEdit.tsActDescrDoc.caption"
                         margin="true"
                         spacing="true">
                        <groupBox width="100%" height="AUTO">
                            <button id="btGenDescr"
                                    caption="msg://com.calidus.pdcs.screen.activity/activityEdit.btGenDescr.caption"/>
                        </groupBox>
                    </tab>
                </tabSheet>
            </column>
        </form>
        <hbox id="editActions" spacing="true" align="BOTTOM_RIGHT">
            <button id="closeBtn" action="windowClose" stylename="small"/>
            <button id="saveBtn" action="windowCommit" stylename="small"/>
            <button id="commitAndCloseBtn" action="windowCommitAndClose" stylename="small"/>
        </hbox>
    </layout>
</window>

I don´t know if there is any relation but I am also facing a problem with the Intelij debugger which is losing its synchronization to the source code.
I tried a build with clean and also deleted the whole “build” folder under the project but with no improvement in the situation.

Any clues on what might be wrong?

Jmix version: 1.5.5
Jmix Studio plugin version: 1.5.6-231
IntelliJ version: IntelliJ IDEA 2023.1.5 (Community Edition)

java version “11.0.10” 2021-01-19 LTS
Java™ SE Runtime Environment 18.9 (build 11.0.10+8-LTS-162)
Java HotSpot™ 64-Bit Server VM 18.9 (build 11.0.10+8-LTS-162, mixed mode)

I’ve just found the problem. See below:

The initialization of “fileStorage” after the injection of FileStorageLocator is probably causing an exception within the Jmix infrastructure library which is being translated into the “Unable to create instance…” exception.
I put the initialization line in the initEvent and the problem disappeared.

Alhamdulillah!

Hi,

I’ve created a GutHub issue to make it clear what caused screen creation problem.

Regards,
Gleb