java.lang.RuntimeException: Cannot convert Java type 'java.lang.Void[]' to Yail type

Google Groups | Arne Mailand | 2 months ago
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    Cannot generate .aix files anymore. Why?

    Google Groups | 2 months ago | Arne Mailand
    java.lang.RuntimeException: Cannot convert Java type 'java.lang.Void[]' to Yail type
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    Socket returning method (Extension) possible ?!?

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    java.lang.RuntimeException: Cannot convert Java type 'java.net.Socket' to Yail type
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    GitHub comment 70#241696021

    GitHub | 4 months ago | voutilad
    java.lang.RuntimeException: Error in Python interpreter: Type: <class 'ValueError'> Value: cannot convert a Python 'str' to a Java 'java.lang.String' Line: <not available> Namespace: <not available> File: <not available>
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    How to Iterate an array of string and return it?

    Stack Overflow | 1 year ago | Mohan Raj S
    java.lang.RuntimeException: java.lang.Error: Unresolved compilation problem: Type mismatch: cannot convert from String[] to Iterator<Object[]>

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    Root Cause Analysis

    1. java.lang.RuntimeException

      Cannot convert Java type 'java.lang.Void[]' to Yail type

      at com.google.appinventor.components.scripts.ComponentProcessor.javaTypeToYailType()
    2. com.google.appinventor
      ComponentProcessor.process
      1. com.google.appinventor.components.scripts.ComponentProcessor.javaTypeToYailType(ComponentProcessor.java:1184)
      2. com.google.appinventor.components.scripts.ComponentDescriptorGenerator.outputParameters(ComponentDescriptorGenerator.java:208)
      3. com.google.appinventor.components.scripts.ComponentDescriptorGenerator.outputBlockMethod(ComponentDescriptorGenerator.java:187)
      4. com.google.appinventor.components.scripts.ComponentDescriptorGenerator.outputComponent(ComponentDescriptorGenerator.java:125)
      5. com.google.appinventor.components.scripts.ComponentDescriptorGenerator.outputResults(ComponentDescriptorGenerator.java:226)
      6. com.google.appinventor.components.scripts.ComponentProcessor.process(ComponentProcessor.java:731)
      6 frames
    3. Java Tools
      Main.compile
      1. com.sun.tools.javac.processing.JavacProcessingEnvironment.callProcessor(JavacProcessingEnvironment.java:794)
      2. com.sun.tools.javac.processing.JavacProcessingEnvironment.discoverAndRunProcs(JavacProcessingEnvironment.java:705)
      3. com.sun.tools.javac.processing.JavacProcessingEnvironment.access$1800(JavacProcessingEnvironment.java:91)
      4. com.sun.tools.javac.processing.JavacProcessingEnvironment$Round.run(JavacProcessingEnvironment.java:1035)
      5. com.sun.tools.javac.processing.JavacProcessingEnvironment.doProcessing(JavacProcessingEnvironment.java:1176)
      6. com.sun.tools.javac.main.JavaCompiler.processAnnotations(JavaCompiler.java:1170)
      7. com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:856)
      8. com.sun.tools.javac.main.Main.compile(Main.java:523)
      9. com.sun.tools.javac.main.Main.compile(Main.java:381)
      10. com.sun.tools.javac.main.Main.compile(Main.java:370)
      11. com.sun.tools.javac.main.Main.compile(Main.java:361)
      12. com.sun.tools.javac.Main.compile(Main.java:56)
      12 frames
    4. Java RT
      Method.invoke
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
      3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      4. java.lang.reflect.Method.invoke(Method.java:498)
      4 frames
    5. Ant
      UnknownElement.execute
      1. org.apache.tools.ant.taskdefs.compilers.Javac13.execute(Javac13.java:57)
      2. org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:1344)
      3. org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:1070)
      4. org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:293)
      4 frames
    6. Java RT
      Method.invoke
      1. sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
      2. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      3. java.lang.reflect.Method.invoke(Method.java:498)
      3 frames
    7. Ant
      UnknownElement.execute
      1. org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
      2. org.apache.tools.ant.Task.perform(Task.java:348)
      3. org.apache.tools.ant.taskdefs.Sequential.execute(Sequential.java:68)
      4. org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:293)
      4 frames
    8. Java RT
      Method.invoke
      1. sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
      2. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      3. java.lang.reflect.Method.invoke(Method.java:498)
      3 frames
    9. Ant
      UnknownElement.execute
      1. org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
      2. org.apache.tools.ant.Task.perform(Task.java:348)
      3. org.apache.tools.ant.taskdefs.MacroInstance.execute(MacroInstance.java:396)
      4. org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:293)
      4 frames
    10. Java RT
      Method.invoke
      1. sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
      2. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      3. java.lang.reflect.Method.invoke(Method.java:498)
      3 frames
    11. Ant
      UnknownElement.execute
      1. org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
      2. org.apache.tools.ant.Task.perform(Task.java:348)
      3. org.apache.tools.ant.Target.execute(Target.java:435)
      4. org.apache.tools.ant.Target.performTasks(Target.java:456)
      5. org.apache.tools.ant.Project.executeSortedTargets(Project.java:1405)
      6. org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:38)
      7. org.apache.tools.ant.Project.executeTargets(Project.java:1260)
      8. org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:441)
      9. org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:293)
      9 frames
    12. Java RT
      Method.invoke
      1. sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
      2. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      3. java.lang.reflect.Method.invoke(Method.java:498)
      3 frames
    13. Ant
      Main.startAnt
      1. org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
      2. org.apache.tools.ant.Task.perform(Task.java:348)
      3. org.apache.tools.ant.Target.execute(Target.java:435)
      4. org.apache.tools.ant.Target.performTasks(Target.java:456)
      5. org.apache.tools.ant.Project.executeSortedTargets(Project.java:1405)
      6. org.apache.tools.ant.Project.executeTarget(Project.java:1376)
      7. org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
      8. org.apache.tools.ant.Project.executeTargets(Project.java:1260)
      9. org.apache.tools.ant.Main.runBuild(Main.java:854)
      10. org.apache.tools.ant.Main.startAnt(Main.java:236)
      10 frames
    14. Apache Ant Launcher
      Launcher.main
      1. org.apache.tools.ant.launch.Launcher.run(Launcher.java:285)
      2. org.apache.tools.ant.launch.Launcher.main(Launcher.java:112)
      2 frames