grammar no.hvl.past.Vylang with org.eclipse.xtext.common.Terminals

generate mylang "x.y.z/past/Mylang"

Model:
	stuff+=Stuff*;
	
Stuff:
	Apple |
	Banana |
	Basket
;

Apple:
	'apple' name=ID
;

Banana:
	'banana' name=ID
;

Basket:
	'basket' name=ID '{'
	(inside+=[Apple] | inside+=[Banana])*
	'}'
;

0 [main] INFO text.xtext.generator.XtextGenerator - Initializing Xtext generator
11 [main] INFO lipse.emf.mwe.utils.StandaloneSetup - Adding generated EPackage 'org.eclipse.xtext.common.types.TypesPackage'
...
1172 [main] INFO text.xtext.generator.XtextGenerator - Generating x.y.z.Mylang
2065 [main] INFO nerator.ecore.EMFGeneratorFragment2 - Generating EMF model code
2104 [main] INFO clipse.emf.mwe.utils.GenModelHelper - Registered GenModel 'x.y.z/Mylang' from 'platform:/resource/x.y.z.mylang/model/generated/Mylang.genmodel'
warning(200): ../x.y.z.mylang/src-gen/x/y/z/parser/antlr/internal/InternalMylang.g:296:3: Decision can match input such as "RULE_ID" using multiple alternatives: 1, 2
As a result, alternative(s) 2 were disabled for that input
error(201): ../x.y.z.mylang/src-gen/x/y/z/parser/antlr/internal/InternalMylang.g:296:3: The following alternatives can never be matched: 2

3126 [main] INFO text.xtext.generator.XtextGenerator - Generating common infrastructure
3161 [main] ERROR mf.mwe2.launch.runtime.Mwe2Launcher - Problems running workflow x.y.z.GenerateMylang:
[ERROR]: GeneratorException: (Element: -UNKNOWN-; Reported by: XtextGenerator)
org.eclipse.xtext.util.RuntimeIOException: java.io.FileNotFoundException: /Users/.../workspaces/modeling/x.y.z.mylang/../x.y.z.mylang/src-gen/x/y/z/parser/antlr/internal/InternalMylangLexer.java (No such file or directory)
at org.eclipse.xtext.generator.JavaIoFileSystemAccess.readTextFile(JavaIoFileSystemAccess.java:263)
at org.eclipse.xtext.generator.AbstractFileSystemAccess2.readTextFile(AbstractFileSystemAccess2.java:45)
at org.eclipse.xtext.xtext.generator.parser.antlr.AbstractAntlrGeneratorFragment2.improveCodeQuality(AbstractAntlrGeneratorFragment2.java:222)
at org.eclipse.xtext.xtext.generator.parser.antlr.AbstractAntlrGeneratorFragment2.splitParserAndLexerIfEnabled(AbstractAntlrGeneratorFragment2.java:213)
at org.eclipse.xtext.xtext.generator.parser.antlr.XtextAntlrGeneratorFragment2.generateProductionGrammar(XtextAntlrGeneratorFragment2.java:194)
at org.eclipse.xtext.xtext.generator.parser.antlr.XtextAntlrGeneratorFragment2.doGenerate(XtextAntlrGeneratorFragment2.java:156)
at org.eclipse.xtext.xtext.generator.parser.antlr.AbstractAntlrGeneratorFragment2.generate(AbstractAntlrGeneratorFragment2.java:109)
at org.eclipse.xtext.xtext.generator.CompositeGeneratorFragment2.generate(CompositeGeneratorFragment2.java:50)
at org.eclipse.xtext.xtext.generator.XtextGenerator.invokeInternal(XtextGenerator.java:230)
at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:132)
at org.eclipse.emf.mwe.core.lib.Mwe2Bridge.invoke(Mwe2Bridge.java:34)
at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:212)
at org.eclipse.emf.mwe2.runtime.workflow.AbstractCompositeWorkflowComponent.invoke(AbstractCompositeWorkflowComponent.java:37)
at org.eclipse.emf.mwe2.runtime.workflow.Workflow.run(Workflow.java:20)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:102)
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:78)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)
Caused by: java.io.FileNotFoundException: /Users/.../workspaces/modeling/x.y.z.mylang/../x.y.z.mylang/src-gen/x/y/z/parser/antlr/internal/InternalMylangLexer.java (No such file or directory)
at java.io.FileInputStream.open0(Native Method)
at java.io.FileInputStream.open(FileInputStream.java:195)
at java.io.FileInputStream.<init>(FileInputStream.java:138)
at com.google.common.io.Files$FileByteSource.openStream(Files.java:130)
at com.google.common.io.Files$FileByteSource.read(Files.java:154)
at com.google.common.io.Files.toByteArray(Files.java:237)
at org.eclipse.xtext.generator.JavaIoFileSystemAccess.readTextFile(JavaIoFileSystemAccess.java:259)
... 18 more