I have done everything given HERE and the slideshow but while building i get this
error
[java] 192. ERROR in C:\Users\techa\AppData\Local\Temp\1618207380004_0.4715318877939759-0\build\generated\src\org\osmdroid\library\R.java (at line 44)
[java] public static final class string {
[java] ^^^^^^
[java] Implicit super constructor Object() is undefined for default constructor. Must define an explicit constructor
[java] ----------
[java] 192 problems (192 errors)
[java] javac returned error code 1
BUILD FAILED
E:\appinventor-sources\appinventor\build.xml:21: The following error occurred while executing this line:
E:\appinventor-sources\appinventor\buildserver\build.xml:196: Java returned: 1
Total time: 45 seconds
Error code is bigger than this but cant paste full due to word limit
Hello @AkshatRana, it looks like you are using java 9 or higher, the Appinventor source is only configured to run in java 8, running on a heigher java version would result in failure to compile the sources, See this answer here:
In windows 10 from control panel go Advanced System Settings and then in the window that pops choose Environment Variables. In System Variables check if in PATH variable you have %JAVA_HOME%\bin if not add it
I tried to reinstall my App Inventor Sources And While Bulding Ant i got this
[java] Invoking Linker Cross-Site-Iframe
[java] [ERROR] Failed to link
[java] java.lang.OutOfMemoryError: Java heap space
[java] at java.util.Arrays.copyOf(Arrays.java:3332)
[java] at java.lang.AbstractStringBuilder.ensureCapacityInternal(AbstractStringBuilder.java:124)
[java] at java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:448)
[java] at java.lang.StringBuilder.append(StringBuilder.java:136)
[java] at com.google.gwt.core.linker.CrossSiteIframeLinker.wrapPrimaryFragment(CrossSiteIframeLinker.java:700)
[java] at com.google.gwt.core.ext.linker.impl.SelectionScriptLinker.generatePrimaryFragmentString(SelectionScriptLinker.java:411)
[java] at com.google.gwt.core.ext.linker.impl.SelectionScriptLinker.generatePrimaryFragment(SelectionScriptLinker.java:386)
[java] at com.google.gwt.core.ext.linker.impl.SelectionScriptLinker.doEmitCompilation(SelectionScriptLinker.java:254)
[java] at com.google.gwt.core.ext.linker.impl.SelectionScriptLinker.link(SelectionScriptLinker.java:196)
[java] at com.google.gwt.core.ext.linker.impl.StandardLinkerContext.invokeLinkForOnePermutation(StandardLinkerContext.java:384)
[java] at com.google.gwt.dev.Link.finishPermutation(Link.java:483)
[java] at com.google.gwt.dev.Link.doSimulatedShardingLink(Link.java:445)
[java] at com.google.gwt.dev.Link.link(Link.java:178)
[java] at com.google.gwt.dev.Compiler.compile(Compiler.java:244)
[java] at com.google.gwt.dev.Compiler.compile(Compiler.java:155)
[java] at com.google.gwt.dev.Compiler.compile(Compiler.java:144)
[java] at com.google.gwt.dev.Compiler$1.run(Compiler.java:118)
[java] at com.google.gwt.dev.CompileTaskRunner.doRun(CompileTaskRunner.java:55)
[java] at com.google.gwt.dev.CompileTaskRunner.runWithAppropriateLogger(CompileTaskRunner.java:50)
[java] at com.google.gwt.dev.Compiler.main(Compiler.java:125)
[java] [ERROR] Out of memory; to increase the amount of memory, use the -Xmx flag at startup (java -Xmx128M ...)
BUILD FAILED
E:\appinventor-sources\appinventor\build.xml:16: The following error occurred while executing this line:
E:\appinventor-sources\appinventor\appengine\build.xml:581: Java returned: 1
Hi @AkshatRana you can try completely uninstalling java and re-install java 8
I also had this problem a while ago but it was solved after I reinstalled java.
I problem was it was tracking the Program File/common files/
configuration file
but as the config file was meant for java 15 so it did not scho any thing so after I reinstalled it changed the config file too
