java.lang.NoClassDefFoundError: my/lang/structure/StructureAspectDescriptor

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jetbrains.mps.classloading.ModuleClassNotFoundException: Unable to load class: my.lang.structure.StructureAspectDescriptor using ModuleClassLoader of my.lang module
at jetbrains.mps.classloading.ModuleClassLoader.createCLNFException(ModuleClassLoader.java:138)
at jetbrains.mps.classloading.ModuleClassLoader.loadClass(ModuleClassLoader.java:125)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at my.lang.Language.createAspectDescriptor(Language.java:47)
at jetbrains.mps.smodel.language.LanguageRuntime.getAspect(LanguageRuntime.java:244)
at jetbrains.mps.smodel.language.LanguageRegistry.createRuntime(LanguageRegistry.java:135)
at jetbrains.mps.smodel.language.LanguageRegistry.afterClassesLoaded(LanguageRegistry.java:233)
at jetbrains.mps.classloading.ClassLoadingBroadCaster.onLoad(ClassLoadingBroadCaster.java:99)
at jetbrains.mps.classloading.ClassLoaderManager.preLoadModules(ClassLoaderManager.java:341)
at jetbrains.mps.classloading.ClassLoaderManager.doReloadModules(ClassLoaderManager.java:490)
at jetbrains.mps.classloading.ClassLoaderManager.reloadModules(ClassLoaderManager.java:454)
at jetbrains.mps.make.facets.ReloadClasses_Facet$Target_reloadClasses$1$2.run(ReloadClasses_Facet.java:75)
at jetbrains.mps.ide.smodel.WorkbenchModelAccess$7.compute(WorkbenchModelAccess.java:370)
at jetbrains.mps.ide.smodel.WorkbenchModelAccess$7.compute(WorkbenchModelAccess.java:367)
at jetbrains.mps.util.ComputeRunnable.compute(ComputeRunnable.java:32)
at jetbrains.mps.util.AbstractComputeRunnable.run(AbstractComputeRunnable.java:27)
at jetbrains.mps.smodel.WriteActionDispatcher.run(WriteActionDispatcher.java:39)
at jetbrains.mps.smodel.WriteActionDispatcher.compute(WriteActionDispatcher.java:49)
at jetbrains.mps.ide.smodel.WorkbenchModelAccess.tryWrite(WorkbenchModelAccess.java:414)
at jetbrains.mps.ide.smodel.WorkbenchModelAccess.tryWrite(WorkbenchModelAccess.java:374)
at jetbrains.mps.make.facets.ReloadClasses_Facet$Target_reloadClasses$1.execute(ReloadClasses_Facet.java:73)
at jetbrains.mps.internal.make.runtime.script.Script$3.invoke(Script.java:292)
at jetbrains.mps.internal.make.runtime.script.Script$3.invoke(Script.java:235)
at jetbrains.mps.ide.make.WorkbenchMakeService$Controller.runJobWithMonitor(WorkbenchMakeService.java:327)
at jetbrains.mps.internal.make.runtime.script.Script.executeTargets(Script.java:235)
at jetbrains.mps.internal.make.runtime.script.Script.execute(Script.java:213)
at jetbrains.mps.make.service.CoreMakeTask$1.invoke(CoreMakeTask.java:104)
at jetbrains.mps.make.dependencies.MakeSequence.iterate(MakeSequence.java:59)
at jetbrains.mps.make.service.CoreMakeTask.doRun(CoreMakeTask.java:78)
at jetbrains.mps.ide.make.MakeTask$WorkbenchMakeTask.doRun(MakeTask.java:135)
at jetbrains.mps.make.service.CoreMakeTask.run(CoreMakeTask.java:58)
at java.lang.Thread.run(Thread.java:744)

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