Duplicate entry 'xxx' for key 'xxx'
插入數據的時候 報錯，Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Duplicate entry 'xxx-xxx-xxx-xxx-xxx' for key 'AA ...
原文：Build path contains duplicate entry:'src' for project 'XXX'
導入別人的工程提示： Build path contains duplicate entry: src for project XXX 原因：該工程使用的SDK版本和我們當前使用的版本不同 解決方法：找到該工程的project.properties文件， 修改target android 修改后面的數字 ...
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一、報錯信息： ERROR 2019-04-22 02:00:29,971 exceptions 30 [<wechat.views.WixinView object at 0x7f3bb01dae48>] (1062, "Duplicate entry '余生' for key ...