| Couldn't resolve reference to EPackage [message #650571] |
Tue, 25 January 2011 09:50  |
Eclipse User |
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Hello everybody,
I have a Xtext project with several languages and many cross-references among them. Recently, I removed the src-gen folder from the SVN and of course, the .ecore files with it. The reason for it, is that I woud not like to version any generated code.
Now I can't run the workflow unless I comment the cross-references and generate the .ecore files again. I have read post related to this issue but it is not clear to me.
This is the exception showed when I try to run the workflow of my example:
940 [main] ERROR mf.mwe2.launch.runtime.Mwe2Launcher - Problems instantiating module org.xtext.example.test.MyDslB: java.lang.reflect.InvocationTargetException
java.lang.RuntimeException: Problems instantiating module org.xtext.example.test.MyDslB: java.lang.reflect.InvocationTargetException
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:73)
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)
Caused by: org.eclipse.emf.common.util.WrappedException: java.lang.reflect.InvocationTargetException
at org.eclipse.emf.mwe2.language.factory.SettingProviderImpl$1$1.setValue(SettingProviderImpl.java:56)
at org.eclipse.emf.mwe2.language.factory.Mwe2ExecutionEngine.internalApplyAssignments(Mwe2ExecutionEngine.java:127)
at org.eclipse.emf.mwe2.language.factory.Mwe2ExecutionEngine.inCase(Mwe2ExecutionEngine.java:102)
at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at org.eclipse.xtext.util.PolymorphicDispatcher.invoke(PolymorphicDispatcher.java:272)
at org.eclipse.emf.mwe2.language.factory.Mwe2ExecutionEngine.internalSwitch(Mwe2ExecutionEngine.java:56)
at org.eclipse.emf.mwe2.language.factory.Mwe2ExecutionEngine.internalApplyAssignments(Mwe2ExecutionEngine.java:126)
at org.eclipse.emf.mwe2.language.factory.Mwe2ExecutionEngine.inCase(Mwe2ExecutionEngine.java:102)
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:616)
at org.eclipse.xtext.util.PolymorphicDispatcher.invoke(PolymorphicDispatcher.java:272)
at org.eclipse.emf.mwe2.language.factory.Mwe2ExecutionEngine.internalSwitch(Mwe2ExecutionEngine.java:56)
at org.eclipse.emf.mwe2.language.factory.Mwe2ExecutionEngine.internalApplyAssignments(Mwe2ExecutionEngine.java:126)
at org.eclipse.emf.mwe2.language.factory.Mwe2ExecutionEngine.inCase(Mwe2ExecutionEngine.java:102)
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:616)
at org.eclipse.xtext.util.PolymorphicDispatcher.invoke(PolymorphicDispatcher.java:272)
at org.eclipse.emf.mwe2.language.factory.Mwe2ExecutionEngine.internalSwitch(Mwe2ExecutionEngine.java:56)
at org.eclipse.emf.mwe2.language.factory.Mwe2ExecutionEngine.inCase(Mwe2ExecutionEngine.java:69)
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:616)
at org.eclipse.xtext.util.PolymorphicDispatcher.invoke(PolymorphicDispatcher.java:272)
at org.eclipse.emf.mwe2.language.factory.Mwe2ExecutionEngine.internalSwitch(Mwe2ExecutionEngine.java:56)
at org.eclipse.emf.mwe2.language.factory.Mwe2ExecutionEngine.create(Mwe2ExecutionEngine.java:52)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:71)
... 3 more
Caused by: java.lang.reflect.InvocationTargetException
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:616)
at org.eclipse.emf.mwe2.language.factory.SettingProviderImpl$1$1.setValue(SettingProviderImpl.java:54)
... 35 more
Caused by: java.lang.IllegalStateException: Problem parsing 'classpath:/org/xtext/example/test/MyDslB.xtext':[XtextLinkingDiagnostic: null:2 Couldn't resolve reference to EPackage 'platform:/resource/org.xtext.example.test/src-gen/org/xtext/example/test/MyDslA.ecore'., XtextLinkingDiagnostic: null:23 Couldn't resolve reference to EClassifier 'Domain'., TransformationDiagnostic: null:23 Cannot find type for '[mydsla::Domain]'. (ErrorCode: NoSuchTypeAvailable)]
at org.eclipse.xtext.generator.LanguageConfig.setUri(LanguageConfig.java:112)
... 40 more
the workflow:
module org.xtext.example.test.MyDslB
import org.eclipse.emf.mwe.utils.*
import org.eclipse.xtext.generator.*
import org.eclipse.xtext.ui.generator.*
var grammarURI = "classpath:/org/xtext/example/test/MyDslB.xtext"
var file.extensions = "mydslB"
var projectName = "org.xtext.example.test"
var runtimeProject = "../${projectName}"
Workflow {
bean = StandaloneSetup {
platformUri = "${runtimeProject}/.."
}
component = DirectoryCleaner {
directory = "${runtimeProject}/src-gen"
}
component = DirectoryCleaner {
directory = "${runtimeProject}.ui/src-gen"
}
component = Generator {
pathRtProject = runtimeProject
pathUiProject = "${runtimeProject}.ui"
projectNameRt = projectName
projectNameUi = "${projectName}.ui"
language = {
uri = "classpath:/org/xtext/example/test/MyDslA.xtext"
fileExtensions = "mydslA"
// Java API to access grammar elements (required by several other fragments)
fragment = grammarAccess.GrammarAccessFragment {}
// generates Java API for the generated EPackages
fragment = ecore.EcoreGeneratorFragment {
// referencedGenModels = "uri to genmodel, uri to next genmodel"
}
// the serialization component
fragment = parseTreeConstructor.ParseTreeConstructorFragment {}
// a custom ResourceFactory for use with EMF
fragment = resourceFactory.ResourceFactoryFragment {
fileExtensions = "mydslA"
}
// The antlr parser generator fragment.
fragment = parser.antlr.XtextAntlrGeneratorFragment {
// options = {
// backtrack = true
// }
}
// java-based API for validation
fragment = validation.JavaValidatorFragment {
composedCheck = "org.eclipse.xtext.validation.ImportUriValidator"
composedCheck = "org.eclipse.xtext.validation.NamesAreUniqueValidator"
// registerForImportedPackages = true
}
// scoping and exporting API
// fragment = scoping.ImportURIScopingFragment {}
fragment = exporting.SimpleNamesFragment {}
// scoping and exporting API
fragment = scoping.ImportNamespacesScopingFragment {}
//fragment = exporting.QualifiedNamesFragment {}
fragment = builder.BuilderIntegrationFragment {}
// formatter API
fragment = formatting.FormatterFragment {}
// labeling API
fragment = labeling.LabelProviderFragment {}
// outline API
fragment = outline.TransformerFragment {}
fragment = outline.OutlineNodeAdapterFactoryFragment {}
fragment = outline.QuickOutlineFragment {}
// quickfix API
fragment = quickfix.QuickfixProviderFragment {}
// content assist API
fragment = contentAssist.JavaBasedContentAssistFragment {}
// generates a more lightweight Antlr parser and lexer tailored for content assist
fragment = parser.antlr.XtextAntlrUiGeneratorFragment {}
// project wizard (optional)
// fragment = projectWizard.SimpleProjectWizardFragment {
// generatorProjectName = "${projectName}.generator"
// modelFileExtension = file.extensions
// }
}
language = {
uri = grammarURI
fileExtensions = file.extensions
// Java API to access grammar elements (required by several other fragments)
fragment = grammarAccess.GrammarAccessFragment {}
// generates Java API for the generated EPackages
fragment = ecore.EcoreGeneratorFragment {
referencedGenModels = "platform:/resource/org.xtext.example.test/src-gen/org/xtext/example/test/MyDslA.genmodel"
}
// the serialization component
fragment = parseTreeConstructor.ParseTreeConstructorFragment {}
// a custom ResourceFactory for use with EMF
fragment = resourceFactory.ResourceFactoryFragment {
fileExtensions = file.extensions
}
// The antlr parser generator fragment.
fragment = parser.antlr.XtextAntlrGeneratorFragment {
// options = {
// backtrack = true
// }
}
// java-based API for validation
fragment = validation.JavaValidatorFragment {
composedCheck = "org.eclipse.xtext.validation.ImportUriValidator"
composedCheck = "org.eclipse.xtext.validation.NamesAreUniqueValidator"
// registerForImportedPackages = true
}
// scoping and exporting API
// fragment = scoping.ImportURIScopingFragment {}
fragment = exporting.SimpleNamesFragment {}
// scoping and exporting API
fragment = scoping.ImportNamespacesScopingFragment {}
//fragment = exporting.QualifiedNamesFragment {}
fragment = builder.BuilderIntegrationFragment {}
// formatter API
fragment = formatting.FormatterFragment {}
// labeling API
fragment = labeling.LabelProviderFragment {}
// outline API
fragment = outline.TransformerFragment {}
fragment = outline.OutlineNodeAdapterFactoryFragment {}
fragment = outline.QuickOutlineFragment {}
// quickfix API
fragment = quickfix.QuickfixProviderFragment {}
// content assist API
fragment = contentAssist.JavaBasedContentAssistFragment {}
// generates a more lightweight Antlr parser and lexer tailored for content assist
fragment = parser.antlr.XtextAntlrUiGeneratorFragment {}
// project wizard (optional)
// fragment = projectWizard.SimpleProjectWizardFragment {
// generatorProjectName = "${projectName}.generator"
// modelFileExtension = file.extensions
// }
}
}
}
and the grammars:
grammar org.xtext.example.test.MyDslA with org.eclipse.xtext.common.Terminals
generate myDslA "http://www.xtext.org/example/test/MyDslA"
Domain:
'Name' ':' name=ID
;
grammar org.xtext.example.test.MyDslB with org.eclipse.xtext.common.Terminals
import "platform:/resource/org.xtext.example.test/src-gen/org/xtext/example/test/MyDslA.ecore" as mydsla
generate myDslB "http://www.xtext.org/example/test/MyDslB"
Attribute:
'Name' ':' name=ID
'Domain : ' (domainA+=DomainA)+
'DataType' ':' datatype=DataType
'DomainFromA : ' domainFromA=DomainFromA
;
DataType:
domain=[DomainA]
;
DomainA:
name=ID
;
DomainFromA:
domain=[mydsla::Domain]
;
Thank you very much for your help.
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| Re: Couldn't resolve reference to EPackage [message #1146515 is a reply to message #650639] |
Sun, 20 October 2013 03:36  |
| Eclipse User |
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Dear All,
I need your favor or suggestion regarding migrate the xtext version from 1.0.1 to 2.3.0 in custom application.
I followed all following process for migrate the xtext version.
1. Delete the old plug-ins and update the latest plug-ins in target platform.
2. Update the Plug-in Dependencies and Import Statements.
3. Introduction of the Qualified Name.
4. Changes in the index and in find references.
5. Rewritten Node Model.
6. AutoEditStrategy.
7. Other Noteworthy API Changes
To consider the above steps, I started the work with Eclipse-4.2, Which has a xtext-2.3.0 dependency. Successfully I completed the all above steps and removed the compilation error.
Problem: After that I start the testing and getting below error Messages:
[XtextLinkingDiagnostic: null:6 Couldn't resolve reference to Material 'MPS_RECUR'.,
XtextLinkingDiagnostic: null:9 Couldn't resolve reference to Cstic 'NUM_OF_ALLOC'.,
XtextLinkingDiagnostic: null:15 Couldn't resolve reference to Cstic 'INSTANCE_NUM'.,
XtextLinkingDiagnostic: null:14 Couldn't resolve reference to Class 'ALLOC'.]
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