java.lang.UnsupportedClassVersionError: org/webjars/WebJarExtractor$Cache : Unsupported major.minor version 51.0 "activator run" further yields: at java.lang.Classloader.defineClass1(Native Method) ...

  1. 0

    Lightbend Activator failed to load sbt configuration on Ubuntu that works on Windows

    Stack Overflow | 5 months ago | Christopher Brinkley
    java.lang.UnsupportedClassVersionError: org/webjars/WebJarExtractor$Cache : Unsupported major.minor version 51.0 "activator run" further yields: at java.lang.Classloader.defineClass1(Native Method) ...
  2. 0

    Java config for Lightbend Activator

    Ask Ubuntu | 5 months ago | Christopher Brinkley
    java.lang.UnsupportedClassVersionError: org/webjars/WebJarExtractor$Cache : Unsupported major.minor version 51.0
  3. 0

    Failed to load sbt config on Ubuntu when it worked on Windows

    GitHub | 5 months ago | brinklec
    java.lang.UnsupportedClassVersionError: org/webjars/WebJarExtractor$Cache : Unsupported major.minor version 51.0 ``` In the "activator run" case, there is a long error stack that begins and ends like this: ```
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  5. 0

    GitHub comment 992#155551733

    GitHub | 1 year ago | busches
    java.lang.UnsupportedClassVersionError: org/webjars/WebJarAssetLocator : Unsupported major.minor version 51.0
  6. 0

    unable to run luminus

    GitHub | 7 months ago | mkno
    java.lang.ExceptionInInitializerError

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    Root Cause Analysis

    1. java.lang.UnsupportedClassVersionError

      org/webjars/WebJarExtractor$Cache : Unsupported major.minor version 51.0 "activator run" further yields: at java.lang.Classloader.defineClass1(Native Method) ...

      at xsbt.boot.Boot.main()
    2. SBT Launcher
      Boot.main
      1. xsbt.boot.Boot.main(Boot.scala)
      1 frame