myeclipse报An error has occurred,See error log for more details. java.lang.NullPointerException错误解决办法
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由NullPointerException可看出,其实是Myeclipse报这个错主要是因为项目改名字或找不到配置里面的相关项目信息,因此,将项目重命名,此时可能会报另一个错误,Problems encountered while moving resources.
点击详情,可看到类似: Error moving metadata area from E:\SVN\code\demo\.metadata\.plugins\org.eclipse.core.resources\.projects\yy-manager-web to E:\SVN\code\demo\.metadata\.plugins\org.eclipse.core.resources\.projects\yy-manager-web1.
File already exists on disk: E:\SVN\code\demo\.metadata\.plugins\org.eclipse.core.resources\.projects\yy-manager-web1.的信息
由于我的项目名字是yy-manager-web由另一个项目copy过来的,原有项目也叫yy-manager-web,所以我重登命名为yy-manager-web1,后来删除了yy-manager-web,然后把yy-manager-web1又改回yy-manager-web项目名,但是由于其中操作的问题,MeClipse并没有删除相关的插件项目配置,所以找到workspace对根目录,打开{workspace}metadata\.plugins\org.eclipse.core.resources\.projects\\metadata\.plugins\org.eclipse.core.resources\.projects\文件夹,删除错误项目,即可解决问题。
最快解决办法:
1、在Myeclipse里面删除项目,但不要删除源码
2、修改此项目所有myeclipse配置的错误信息,基本是.settings、.classpath、.project中的内容
3、检查{workspace}metadata\.plugins\org.eclipse.core.resources\.projects\\metadata\.plugins\org.eclipse.core.resources\.projects\文件夹是否仍然存在此项目的相关信息,如果存在删除
4、重新导入项目
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