| J2SE-1.7 Problem [message #874982] |
Mon, 21 May 2012 18:31  |
Eclipse User |
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I've just found out about Xtext and I wanted to try it out. However, when I create an example project, I get the following build error (which doesn't seem very informative):
Errors running builder 'Xtext Project Builder' on project 'org.eclipse.xtext.example.fowlerdsl'.
org.eclipse.xtext.naming.QualifiedName.create(Ljava/lang/String;)Lorg/eclipse/xtext/naming/QualifiedName;
Furthermore, I have the following warnings in my project(s):
Build path specifies execution environment J2SE-1.5. There are no JREs installed in the workspace that are strictly compatible with this environment. org.eclipse.xtext.example.fowlerdsl
Build path specifies execution environment J2SE-1.5. There are no JREs installed in the workspace that are strictly compatible with this environment. org.eclipse.xtext.example.fowlerdsl.ui
Discouraged access: The type IPartialContentAssistParser is not accessible due to restriction on required library /home/stefan/.eclipse/org.eclipse.platform_3.7.0_1543616141/plugins/org.eclipse.xtext.ui.codetemplates.ui_2.3.0.v201205081025.jar PartialStatemachineContentAssistParser.java /org.eclipse.xtext.example.fowlerdsl.ui/src-gen/org/eclipse/xtext/example/fowlerdsl/ui/contentassist/antlr line 10
Discouraged access: The type IPartialContentAssistParser is not accessible due to restriction on required library /home/stefan/.eclipse/org.eclipse.platform_3.7.0_1543616141/plugins/org.eclipse.xtext.ui.codetemplates.ui_2.3.0.v201205081025.jar PartialStatemachineContentAssistParser.java /org.eclipse.xtext.example.fowlerdsl.ui/src-gen/org/eclipse/xtext/example/fowlerdsl/ui/contentassist/antlr line 18
I only have OpenJDK7 installed and that seems to be the problem. Could you confirm that is the case and, if so, is there any way I could fix this or should I just install OpenJDK6 or 5?
Edit: Here's a more informative version of the first error, which showed up today:
1 [main] ERROR mf.mwe2.launch.runtime.Mwe2Launcher - org.eclipse.xtext.naming.QualifiedName.create(Ljava/lang/String;)Lorg/eclipse/xtext/naming/QualifiedName;
java.lang.NoSuchMethodError: org.eclipse.xtext.naming.QualifiedName.create(Ljava/lang/String;)Lorg/eclipse/xtext/naming/QualifiedName;
at org.eclipse.emf.mwe2.language.scoping.InjectableFeatureLookup.collectFeatures(InjectableFeatureLookup.java:52)
at org.eclipse.emf.mwe2.language.scoping.InjectableFeatureLookup.collectFeatures(InjectableFeatureLookup.java:41)
at org.eclipse.emf.mwe2.language.scoping.InjectableFeatureLookup.getInjectableFeatures(InjectableFeatureLookup.java:30)
at org.eclipse.emf.mwe2.language.scoping.Mwe2ScopeProvider.createComponentFeaturesScope(Mwe2ScopeProvider.java:132)
at org.eclipse.emf.mwe2.language.scoping.Mwe2ScopeProvider.scope_Assignment_feature(Mwe2ScopeProvider.java:60)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.eclipse.xtext.util.PolymorphicDispatcher.invoke(PolymorphicDispatcher.java:291)
at org.eclipse.xtext.scoping.impl.AbstractDeclarativeScopeProvider.polymorphicFindScopeForReferenceName(AbstractDeclarativeScopeProvider.java:150)
at org.eclipse.xtext.scoping.impl.AbstractDeclarativeScopeProvider.getScope(AbstractDeclarativeScopeProvider.java:98)
at org.eclipse.xtext.linking.impl.DefaultLinkingService.getScope(DefaultLinkingService.java:59)
at org.eclipse.xtext.linking.impl.DefaultLinkingService.getLinkedObjects(DefaultLinkingService.java:119)
at org.eclipse.xtext.linking.lazy.LazyLinkingResource.getEObject(LazyLinkingResource.java:179)
at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.getEObject(ResourceSetImpl.java:223)
at org.eclipse.emf.ecore.util.EcoreUtil.resolve(EcoreUtil.java:197)
at org.eclipse.emf.ecore.util.EcoreUtil.resolve(EcoreUtil.java:257)
at org.eclipse.emf.ecore.impl.BasicEObjectImpl.eResolveProxy(BasicEObjectImpl.java:1473)
at org.eclipse.emf.mwe2.language.mwe2.impl.AssignmentImpl.getFeature(AssignmentImpl.java:111)
at org.eclipse.emf.mwe2.language.mwe2.impl.AssignmentImpl.eGet(AssignmentImpl.java:229)
at org.eclipse.emf.ecore.impl.BasicEObjectImpl.eGet(BasicEObjectImpl.java:1011)
at org.eclipse.emf.ecore.impl.BasicEObjectImpl.eGet(BasicEObjectImpl.java:1003)
at org.eclipse.emf.ecore.util.EContentsEList$FeatureIteratorImpl.hasNext(EContentsEList.java:403)
at org.eclipse.emf.ecore.util.EcoreUtil.resolveCrossReferences(EcoreUtil.java:302)
at org.eclipse.emf.ecore.util.EcoreUtil.resolveAll(EcoreUtil.java:296)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:86)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:62)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:52)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.run(Mwe2Launcher.java:74)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:35)
Ștefan
[Updated on: Tue, 22 May 2012 08:38] by Moderator |
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| Re: J2SE-1.7 Problem [message #876016 is a reply to message #876005] |
Wed, 23 May 2012 14:41  |
| Eclipse User |
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Hi,
I tried one of your distros as well, so I suppose there's something wrong with my Java installation... I was hoping this was a known/common problem.
I will be trying Fedora 17 when it comes out (in ~a week) and let you know if I have any other problems. Meanwhile I'll try to fix my current installation.
Thanks,
Ștefan
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