The project was not built since its build path is incomplete. Cannot find the class file for java.la
2014-12-16 21:14
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The project was not built since its build path is incomplete. Cannot find the class file for java.lang.Object. Fix the build path then try building this projectex07_toast_and_notification Unknown Java Problem
这种错误原因是:appcompat_v7中libs目录下的android-support-v4.jar和自己建立工程中libs下的android-support-v4.jar不一致
解决方法:
第一步：复制一份appcompat_v7中libs目录下的android-support-v4.jar，替换自己建立的工程中的appcompat_v7中libs目录下的android-support-v4.jar，使自己建立的工程中的android-support-v4.jar和appcompat_v7中的保持一致。
第二步：clean一下appcompat_v7，clean一下自己的工程
完成以上两个步骤，错误就解决了
这种错误原因是:appcompat_v7中libs目录下的android-support-v4.jar和自己建立工程中libs下的android-support-v4.jar不一致
解决方法:
第一步：复制一份appcompat_v7中libs目录下的android-support-v4.jar，替换自己建立的工程中的appcompat_v7中libs目录下的android-support-v4.jar，使自己建立的工程中的android-support-v4.jar和appcompat_v7中的保持一致。
第二步：clean一下appcompat_v7，clean一下自己的工程
完成以上两个步骤，错误就解决了
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