'java.lang.AssertionError: assertion failed' Error while starting Scala-IDE(Eclipse)

Question

I am new to eclipse. Please excuse me if I am wrong about something.

I've downloaded Scala IDE for eclipse 4.6.1. I've extracted the contents and tried to launch eclipse. Initially there was a problem with maven: 'Failed to read artifact descriptor for maven-resources-plugin'. I was able to solve this error(I assume so because it didn't show up again) by adding the proxy settings to settings.xml in .m2 folder.

Now I get a new error saying: 'java.lang.AssertionError: assertion failed'

Below is the full error:

!ENTRY org.eclipse.e4.ui.workbench.swt 4 2 2017-07-10 14:34:58.379
!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.e4.ui.workbench.swt".
!STACK 0
java.lang.AssertionError: assertion failed
    at scala.Predef$.assert(Predef.scala:204)
    at scala.tools.scalap.Classfile.<init>(Classfile.scala:17)
    at org.scalaide.core.internal.jdt.model.ScalaClassFileDescriber$.isScala(ScalaClassFileDescriber.scala:16)
    at org.scalaide.core.internal.jdt.model.ScalaClassFileDescriber.describe(ScalaClassFileDescriber.scala:38)
    at org.eclipse.core.internal.content.ContentTypeCatalog.describe(ContentTypeCatalog.java:229)
    at org.eclipse.core.internal.content.ContentTypeCatalog.collectMatchingByContents(ContentTypeCatalog.java:201)
    at org.eclipse.core.internal.content.ContentTypeCatalog.internalFindContentTypesFor(ContentTypeCatalog.java:412)
    at org.eclipse.core.internal.content.ContentTypeCatalog.internalFindContentTypesFor(ContentTypeCatalog.java:461)
    at org.eclipse.core.internal.content.ContentTypeCatalog.findContentTypesFor(ContentTypeCatalog.java:309)
    at org.eclipse.core.internal.content.ContentTypeMatcher.findContentTypeFor(ContentTypeMatcher.java:36)
    at org.eclipse.wst.sse.core.internal.modelhandler.ModelHandlerRegistry.getHandlerFor(ModelHandlerRegistry.java:230)
    at org.eclipse.wst.sse.core.internal.model.ModelManagerImpl.calculateType(ModelManagerImpl.java:750)
    at org.eclipse.wst.sse.core.internal.model.ModelManagerImpl.getModelForEdit(ModelManagerImpl.java:1427)
    at org.eclipse.wst.sse.ui.internal.StorageModelProvider.loadModel(StorageModelProvider.java:733)
    at org.eclipse.wst.sse.ui.internal.StorageModelProvider.loadModel(StorageModelProvider.java:705)
    at org.eclipse.wst.sse.ui.internal.StorageModelProvider.selfCreateModel(StorageModelProvider.java:761)
    at org.eclipse.wst.sse.ui.internal.StorageModelProvider.createModelInfo(StorageModelProvider.java:478)
    at org.eclipse.wst.sse.ui.internal.StorageModelProvider.createElementInfo(StorageModelProvider.java:469)
    at org.eclipse.ui.texteditor.AbstractDocumentProvider.connect(AbstractDocumentProvider.java:392)
    at org.eclipse.ui.texteditor.AbstractTextEditor.doSetInput(AbstractTextEditor.java:4178)
    at org.eclipse.ui.texteditor.StatusTextEditor.doSetInput(StatusTextEditor.java:229)
    at org.eclipse.ui.texteditor.AbstractDecoratedTextEditor.doSetInput(AbstractDecoratedTextEditor.java:1466)
    at org.eclipse.ui.editors.text.TextEditor.doSetInput(TextEditor.java:150)
    at org.eclipse.wst.sse.ui.StructuredTextEditor.doSetInput(StructuredTextEditor.java:1958)
    at org.eclipse.ui.texteditor.AbstractTextEditor$5.run(AbstractTextEditor.java:3154)
    at org.eclipse.ui.internal.WorkbenchWindow.run(WorkbenchWindow.java:2126)
    at org.eclipse.ui.texteditor.AbstractTextEditor.internalInit(AbstractTextEditor.java:3172)
    at org.eclipse.ui.texteditor.AbstractTextEditor.init(AbstractTextEditor.java:3197)
    at org.eclipse.wst.sse.ui.StructuredTextEditor.init(StructuredTextEditor.java:2651)
    at org.eclipse.ui.part.MultiPageEditorPart.addPage(MultiPageEditorPart.java:240)
    at org.eclipse.ui.forms.editor.FormEditor.addPage(FormEditor.java:330)
    at org.eclipse.ui.part.MultiPageEditorPart.addPage(MultiPageEditorPart.java:214)
    at org.eclipse.ui.forms.editor.FormEditor.addPage(FormEditor.java:312)
    at org.eclipse.m2e.editor.pom.MavenPomEditor.addSourcePage(MavenPomEditor.java:618)
    at org.eclipse.m2e.editor.pom.MavenPomEditor.addPages(MavenPomEditor.java:356)
    at org.eclipse.ui.forms.editor.FormEditor.createPages(FormEditor.java:140)
    at org.eclipse.ui.part.MultiPageEditorPart.createPartControl(MultiPageEditorPart.java:363)
    at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.createPartControl(CompatibilityPart.java:150)
    at org.eclipse.ui.internal.e4.compatibility.CompatibilityEditor.createPartControl(CompatibilityEditor.java:99)
    at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.create(CompatibilityPart.java:340)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:55)
    at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:966)
    at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:931)
    at org.eclipse.e4.core.internal.di.InjectorImpl.inject(InjectorImpl.java:151)
    at org.eclipse.e4.core.internal.di.InjectorImpl.internalMake(InjectorImpl.java:375)
    at org.eclipse.e4.core.internal.di.InjectorImpl.make(InjectorImpl.java:294)
    at org.eclipse.e4.core.contexts.ContextInjectionFactory.make(ContextInjectionFactory.java:162)
    at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.createFromBundle(ReflectionContributionFactory.java:105)
    at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.doCreate(ReflectionContributionFactory.java:74)
    at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.create(ReflectionContributionFactory.java:56)
    at org.eclipse.e4.ui.workbench.renderers.swt.ContributedPartRenderer.createWidget(ContributedPartRenderer.java:129)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createWidget(PartRenderingEngine.java:975)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:651)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:757)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$0(PartRenderingEngine.java:728)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$2.run(PartRenderingEngine.java:722)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:706)
    at org.eclipse.e4.ui.workbench.renderers.swt.StackRenderer.showTab(StackRenderer.java:1324)
    at org.eclipse.e4.ui.workbench.renderers.swt.LazyStackRenderer.postProcess(LazyStackRenderer.java:103)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:669)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:757)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$0(PartRenderingEngine.java:728)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$2.run(PartRenderingEngine.java:722)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:706)
    at org.eclipse.e4.ui.workbench.renderers.swt.SWTPartRenderer.processContents(SWTPartRenderer.java:70)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:665)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$1.run(PartRenderingEngine.java:536)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:520)
    at org.eclipse.e4.ui.workbench.renderers.swt.ElementReferenceRenderer.createWidget(ElementReferenceRenderer.java:70)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createWidget(PartRenderingEngine.java:975)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:651)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:757)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$0(PartRenderingEngine.java:728)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$2.run(PartRenderingEngine.java:722)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:706)
    at org.eclipse.e4.ui.workbench.renderers.swt.SWTPartRenderer.processContents(SWTPartRenderer.java:70)
    at org.eclipse.e4.ui.workbench.renderers.swt.SashRenderer.processContents(SashRenderer.java:142)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:665)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:757)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$0(PartRenderingEngine.java:728)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$2.run(PartRenderingEngine.java:722)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:706)
    at org.eclipse.e4.ui.workbench.renderers.swt.SWTPartRenderer.processContents(SWTPartRenderer.java:70)
    at org.eclipse.e4.ui.workbench.renderers.swt.SashRenderer.processContents(SashRenderer.java:142)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:665)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:757)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$0(PartRenderingEngine.java:728)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$2.run(PartRenderingEngine.java:722)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:706)
    at org.eclipse.e4.ui.workbench.renderers.swt.SWTPartRenderer.processContents(SWTPartRenderer.java:70)
    at org.eclipse.e4.ui.workbench.renderers.swt.SashRenderer.processContents(SashRenderer.java:142)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:665)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:757)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$0(PartRenderingEngine.java:728)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$2.run(PartRenderingEngine.java:722)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:706)
    at org.eclipse.e4.ui.workbench.renderers.swt.SWTPartRenderer.processContents(SWTPartRenderer.java:70)
    at org.eclipse.e4.ui.workbench.renderers.swt.PerspectiveRenderer.processContents(PerspectiveRenderer.java:49)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:665)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:757)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$0(PartRenderingEngine.java:728)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$2.run(PartRenderingEngine.java:722)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:706)
    at org.eclipse.e4.ui.workbench.renderers.swt.PerspectiveStackRenderer.showTab(PerspectiveStackRenderer.java:82)
    at org.eclipse.e4.ui.workbench.renderers.swt.LazyStackRenderer.postProcess(LazyStackRenderer.java:103)
    at org.eclipse.e4.ui.workbench.renderers.swt.PerspectiveStackRenderer.postProcess(PerspectiveStackRenderer.java:63)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:669)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:757)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$0(PartRenderingEngine.java:728)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$2.run(PartRenderingEngine.java:722)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:706)
    at org.eclipse.e4.ui.workbench.renderers.swt.SWTPartRenderer.processContents(SWTPartRenderer.java:70)
    at org.eclipse.e4.ui.workbench.renderers.swt.SashRenderer.processContents(SashRenderer.java:142)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:665)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:757)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$0(PartRenderingEngine.java:728)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$2.run(PartRenderingEngine.java:722)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:706)
    at org.eclipse.e4.ui.workbench.renderers.swt.SWTPartRenderer.processContents(SWTPartRenderer.java:70)
    at org.eclipse.e4.ui.workbench.renderers.swt.WBWRenderer.processContents(WBWRenderer.java:725)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:665)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:757)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$0(PartRenderingEngine.java:728)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$2.run(PartRenderingEngine.java:722)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:706)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1059)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1022)
    at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:150)
    at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:693)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:610)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
    at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:138)
    at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:388)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:673)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:610)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1519)

I tried to re download eclipse and launch again. But I still get the same error.

Any help would be appreciated. Thank you.

Seems like incompatible versions. I've had better luck using IntelliJ for Scala. — Abhijit Sarkar
– Abhijit Sarkar, Commented Jul 11, 2017 at 1:08
This doesn't answer your question, but still, you may find it helpful. Scala support in eclipse sucks big time. I was an eclipse user myself before I started with scala. After spending a couple of weeks trying to get it to work, I switched to Intellij, and never looked back. It is a superior product all around, but scala support is simply incomparable. — Dima
– Dima, Commented Jul 11, 2017 at 1:08
I agree. I've had issues with network settings on sbt. Never tried Maven on intellij though. @Dima — Hemanth Annavarapu
– Hemanth Annavarapu, Commented Jul 11, 2017 at 1:14
Intelij doesn't have the community to support it like eclipse does. I'd recommend using the 'scala IDE for Eclipse' (scala-ide.org) version that is supported by typesafe/ lightbend / Odersky — Andrew Norman
– Andrew Norman, Commented Nov 30, 2018 at 18:59
I get this issue when I accidentally open eclipse directly (I regularly use a script to open eclipse via command). Marek Jagielski's fix works for my situation — Andrew Norman
– Andrew Norman, Commented Nov 30, 2018 at 19:26

Marek Jagielski · Accepted Answer · 2018-03-22 20:48:31Z

27

I have similar issue. I manage to open eclipse without creating a new workspace by editing:

workspace/.metadata/.plugins/org.eclipse.e4.workbench/workbench.xmi

and removing from it all "persistedState" xml nodes.

UPDATE:

As other responses and comments says. Deleting file workspace/.metadata/.plugins/org.eclipse.e4.workbench/workbench.xmi seems to work well without side effects.

edited Mar 22, 2018 at 20:48

answered Aug 17, 2017 at 20:33

Marek Jagielski

82210 silver badges18 bronze badges

Sign up to request clarification or add additional context in comments.

6 Comments

Gab Over a year ago

In my case it worked. Deleting the file may do as well.

Samir Ouldsaadi Over a year ago

removing persistedState worked :-) perhaps you're better off deleting it

Samir Ouldsaadi Over a year ago

i think this get triggered at least for me when i built a spark project and i choose old version of the compiler and my pom was some old plugins

javawebapps Over a year ago

Way too many persistedState nodes to delete manually. Go with deleting the file.

archie Over a year ago

For me this happened straight after installing an m2e lifecycle adapter and (as per stackoverflow.com/a/45050696/2526040) leaving pom.xml editors open. Deleting just the persistedState elements for pom.xml editors sorted it for me.

|

satsie · Accepted Answer · 2017-09-19 18:39:15Z

14

Deleting

workspace/.metadata/.plugins/org.eclipse.e4.workbench/workbench.xmi

in its entirety also works. A new workbench.xmi is generated after exiting the workspace.

answered Sep 19, 2017 at 18:39

satsie

3993 silver badges9 bronze badges

Comments

Vijay_Pansheriya · Accepted Answer · 2020-05-14 13:37:25Z

3

First go to below directory of your PC/Laptop/Desktop etc

**C:\Users\Username\eclipse-workspace.metadata.plugins\org.eclipse.e4.workbench**

workbench.xmi file - Delete this file without any worry

Now, start your eclipse and running great as usual.

edited May 14, 2020 at 13:37

answered May 14, 2020 at 13:02

Vijay_Pansheriya

313 bronze badges

Comments

Andreas Stiller · Accepted Answer · 2017-07-12 07:06:40Z

2

My repo case for exactly this crash was: Open any POM with m2e editor. The m2e editor tried to open in structured view (not XML mode) despite i have choosen to prefer XMl in preferences. The structured view crashed and created an endless loop of eclipse NPEs in the eclipse event loop. One has to close the window and re-open again. Then the XML views opens. As long as you have a POM open (now in XML mode) any restart of this workspace triggers this crash. The workaround (for me) was to close all POM editors before restarting eclipse.

answered Jul 12, 2017 at 7:06

Andreas Stiller

211 bronze badge

3 Comments

ADreNaLiNe-DJ Over a year ago

This does not provide an answer to the question. Once you have sufficient reputation you will be able to comment on any post; instead, provide answers that don't require clarification from the asker. - From Review

Andreas Stiller Over a year ago

The question was: Any help would be appreciated. I gave a workaround that worked for this scenario. Additionally i do not agree that i asked for any further input.

msanford Over a year ago

@AndreasStiller That message is automatically generated (note "From Review").

Markus Wolf · Accepted Answer · 2017-08-14 13:08:05Z

0

I got this error very suddenly after I came back from a three week holiday and opened a workspace that worked perfectly before the holiday.

I have no real solution, but a workaround, that I used:

I renamed the old workspace on the filesystem. Then I created a new workspace with the old name, moved all project folders into the new workspace and imported them again into Eclipse. Could find no other way to solve this.

If someone finds out the root cause and an inplace solutions, I would be very interested.

answered Aug 14, 2017 at 13:08

Markus Wolf

11 bronze badge

Comments

Andrei Pozolotin · Accepted Answer · 2017-10-27 12:55:24Z

0

please report details in ticket on scala ide issue tracker

meanwhile add to the eclipse startup script a backup of workspace

cp -a workbench.xmi workbench.$(date +"%Y-%m-%d_%H-%M-%S").xmi

edited Oct 27, 2017 at 12:55

answered Oct 27, 2017 at 12:47

Andrei Pozolotin

9233 gold badges14 silver badges24 bronze badges

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