1. TwinCAT 3项目文件相关问答

1.8. 打开TwinCAT 3时错误怎么解决？（initialize PLC failed! Reason:Root element is missing.）

Q:Initialize PLC failed!

    The option file 'C:\ProgramData\TwinCAT PLC Control\TwinCAT PLC ControlProjectDefaults.opt' could not be loaded.

    (Reason: The option file 'C:\ProgramData\TwinCAT PLC Control\TwinCAT PLC ControlProjectDefaults.opt' could not be loaded.

    (Reason: Root element is missing.))

A:把提示中的opt文件删除，再打开TwinCAT3。



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