[Solved] IDEA Startup Error: java: Internal error in the mapping processor

1. Error information

java: Internal error in the mapping processor: java.lang.NullPointerException  at org.mapstruct.ap.internal.processor.DefaultVersionInformation.createManifestUrl(DefaultVersionInformation.java:180)      at org.mapstruct.ap.internal.processor.DefaultVersionInformation.openManifest(DefaultVersionInformation.java:151)  at org.mapstruct.ap.internal.processor.DefaultVersionInformation.getLibraryName(DefaultVersionInformation.java:127)    at org.mapstruct.ap.internal.processor.DefaultVersionInformation.getCompiler(DefaultVersionInformation.java:120)    at org.mapstruct.ap.internal.processor.DefaultVersionInformation.fromProcessingEnvironment(DefaultVersionInformation.java:98)  at org.mapstruct.ap.internal.processor.DefaultModelElementProcessorContext.<init>(DefaultModelElementProcessorContext.java:59)      at org.mapstruct.ap.MappingProcessor.processMapperElements(MappingProcessor.java:222)  at org.mapstruct.ap.MappingProcessor.process(MappingProcessor.java:162)    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)    at java.lang.reflect.Method.invoke(Method.java:498)    at org.jetbrains.jps.javac.APIWrappers$1.invoke(APIWrappers.java:255)  at org.mapstruct.ap.MappingProcessor.process(Unknown Source)    at com.sun.tools.javac.processing.JavacProcessingEnvironment.callProcessor(JavacProcessingEnvironment.java:794)    at com.sun.tools.javac.processing.JavacProcessingEnvironment.discoverAndRunProcs(JavacProcessingEnvironment.java:705)  at com.sun.tools.javac.processing.JavacProcessingEnvironment.access$1800(JavacProcessingEnvironment.java:91)    at com.sun.tools.javac.processing.JavacProcessingEnvironment$Round.run(JavacProcessingEnvironment.java:1035)    at com.sun.tools.javac.processing.JavacProcessingEnvironment.doProcessing(JavacProcessingEnvironment.java:1176)    at com.sun.tools.javac.main.JavaCompiler.processAnnotations(JavaCompiler.java:1170)    at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:856)    at com.sun.tools.javac.main.Main.compile(Main.java:523)    at com.sun.tools.javac.api.JavacTaskImpl.doCall(JavacTaskImpl.java:129)    at com.sun.tools.javac.api.JavacTaskImpl.call(JavacTaskImpl.java:138)  at org.jetbrains.jps.javac.JavacMain.compile(JavacMain.java:231)    at org.jetbrains.jps.incremental.java.JavaBuilder.lambda$compileJava$2(JavaBuilder.java:514)    at org.jetbrains.jps.incremental.java.JavaBuilder.invokeJavac(JavaBuilder.java:560)    at org.jetbrains.jps.incremental.java.JavaBuilder.compileJava(JavaBuilder.java:512)    at org.jetbrains.jps.incremental.java.JavaBuilder.compile(JavaBuilder.java:355)    at org.jetbrains.jps.incremental.java.JavaBuilder.doBuild(JavaBuilder.java:280)    at org.jetbrains.jps.incremental.java.JavaBuilder.build(JavaBuilder.java:234)  at org.jetbrains.jps.incremental.IncProjectBuilder.runModuleLevelBuilders(IncProjectBuilder.java:1464)      at org.jetbrains.jps.incremental.IncProjectBuilder.runBuildersForChunk(IncProjectBuilder.java:1101)    at org.jetbrains.jps.incremental.IncProjectBuilder.buildTargetsChunk(IncProjectBuilder.java:1247)  at org.jetbrains.jps.incremental.IncProjectBuilder.buildChunkIfAffected(IncProjectBuilder.java:1066)    at org.jetbrains.jps.incremental.IncProjectBuilder.buildChunks(IncProjectBuilder.java:832)      at org.jetbrains.jps.incremental.IncProjectBuilder.runBuild(IncProjectBuilder.java:419)    at org.jetbrains.jps.incremental.IncProjectBuilder.build(IncProjectBuilder.java:183)    at org.jetbrains.jps.cmdline.BuildRunner.runBuild(BuildRunner.java:132)    at org.jetbrains.jps.cmdline.BuildSession.runBuild(BuildSession.java:301)  at org.jetbrains.jps.cmdline.BuildSession.run(BuildSession.java:132)    at org.jetbrains.jps.cmdline.BuildMain$MyMessageHandler.lambda$channelRead0$0(BuildMain.java:219)  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)      at java.lang.Thread.run(Thread.java:748)

2. Solutions

1. Set File→settings→Compiler’s User-local build process VM options (overrides Shared options) option to set -Djps.track.ap.dependencies=false, select apply

2. modify the version of mapstruct-processor in pom.xml and upgrade it to 1.4.1.Final or higher

Both methods can be tried, I was successful in the first method

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