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TROUBLESHOOTING.md

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Troubleshooting

The tests fail with java.lang.NoSuchMethodError

  • After updating the Kotlin version, there may be multiple copies of the compiler plugin in lib-kotlin, for example:
lib-kotlin
├───j2k-1.2.72-release-68.jar <- old version
├───j2k-1.3.11-release-272.jar
├───kotlin-plugin-1.2.72-release-68.jar <- old version
└───kotlin-plugin-1.3.11-release-272.jar
  • The issue is that the compiler finds multiple versions of the same class on the classpath
  • To fix this, simply remove the older JARs
  • If that still does not work, delete the entire lib-kotlin folder
    • Gradle will automatically re-download the necessary files once the project is built again

Running npm run compile or vsce package fails

If you get the error

error TS6059: File '.../KotlinLanguageServer/bin/vscode-extension-src/...' is not under 'rootDir' '.../KotlinLanguageServer/vscode-extension-src'. 'rootDir' is expected to contain all source files.

delete the bin folder in the repository directory.