java.lang.UnsupportedClassVersionError: org/webjars/WebJarExtractor$Cache : Unsupported major.minor version 51.0

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via Ask Ubuntu by Christopher Brinkley
, 1 year ago
org/webjars/WebJarExtractor$Cache : Unsupported major.minor version 51.0
via GitHub by brinklec
, 10 months ago
org/webjars/WebJarExtractor$Cache : Unsupported major.minor version 51.0 ``` In the "activator run" case, there is a long error stack that begins and ends like this: ```
java.lang.UnsupportedClassVersionError: org/webjars/WebJarExtractor$Cache : Unsupported major.minor version 51.0

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