It has a problem in idea:
Error:(3, 8) java: 写入edu.nuaa.vo.User时出错: Output directory is not specified
What does it mean?
My compiler Out path is:
Had a similar problem. What helped me is creating the folder in your project (on the same level with the 'src' folder) named 'out' and it started working. Initially it was missing for some reason.
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