Cannot load this JVM TI agent twice, check your Java command line for duplicate jdwp options

本地調試

直接Debug As 執行Demo會報錯：

ERROR: Cannot load this JVM TI agent twice, check your Java command line for duplicate jdwp options.
Error occurred during initialization of VM
agent library failed to init: jdwp

 

解決辦法：

編輯Demo.launch

找到<stringAttribute key="org.eclipse.jdt.launching.VM_ARGUMENTS" value=" -Xdebug -Xrunjdwp:transport=dt_socket,address=8000,server=y,suspend=n -Dplay.debug=yes ...>

將-Xrunjdwp:transport=dt_socket,address=8000,server=y,suspend=n去掉！

附加Play源碼，便可調試Play自己。