Task runIde failed when increasing org.jetbrains.intellij to version 1.11.0

[david-buderus]

When upgrading the gradle plugin org.jetbrains.intellij to version 1.11.0 we encounter the following error when executing ./gradlew runIde:

Execution failed for task ':instrumentCode'.
> taskdef class com.intellij.ant.InstrumentIdeaExtensions cannot be found
   using the classloader AntClassLoader[/home/david/.gradle/caches/modules-2/files-2.1/com.jetbrains.intellij.idea/ideaIC/2020.1/cbeeb1f1aebd4c9ea8fb5ab990c5904a676fc41a/ideaIC-2020.1/lib/asm-all-7.0.1.jar:/home/david/.gradle/caches/modules-2/files-2.1/com.jetbrains.intellij.idea/ideaIC/2020.1/cbeeb1f1aebd4c9ea8fb5ab990c5904a676fc41a/ideaIC-2020.1/lib/jdom.jar:/home/david/.gradle/caches/modules-2/files-2.1/com.jetbrains.intellij.idea/ideaIC/2020.1/cbeeb1f1aebd4c9ea8fb5ab990c5904a676fc41a/ideaIC-2020.1/lib/forms-1.1-preview.jar:/home/david/Downloads/gradleIntellij/intellij-platform-plugin-template-main/.gradle]

When downgrading the gradle plugin org.jetbrains.intellij to version 1.10.2 everything works fine.

See the attached minimal example that is based on the IntelliJ Platform Plugin Template intellij-platform-plugin-template-main.zip.

The problem might be related to the build version that is configured. Everything works fine with version 1.11.0 and the following version setting:

pluginSinceBuild = 213
pluginUntilBuild = 223.*
platformType = IC
platformVersion = 2021.3.3

But when decreasing the version settings to:

pluginSinceBuild = 201
pluginUntilBuild = 223.*
platformType = IC
platformVersion = 2020.1

the error described above occurs.

Performed on:
Ubuntu 22.04

[hsz]

Duplicate of #1255 – please follow that thread for more details.