Gradle error unsupported class file major version 64 July 8, 2019 16 32 64 128 General error during conversion unsupported class file major version 63 _buildscript_' unsupported class file major version 63 Error could not find or load main class org.gradle.wrapper.gradlewrappermain Could not find or load main class org.gradle.wrapper.gradlewrappermain
