Eclipse错误“此编译单元不在Java项目的构建路径上
[英]Eclipse error "This compilation unit is not on the build path of a Java project
问题描述
Has anyone experienced this error before: this happens when I hit CTRL + space, here is the error : 
有人遇到过此错误吗：当我按CTRL +空格时，会发生此错误：
This compilation unit is not on the build path of a Java project.
This is a maven project, mvn eclipse:eclipse doesn't help I mean it compiles and runs just fine just something is wrong and I can't figure out what. 这是一个maven项目，mvn eclipse：eclipse不能帮助我，它可以编译并运行得很好，只是出了一些问题，我不知道是什么。 I checkouted this project from SVN, it wasn't developed on my PC. 我从SVN签出了这个项目，它不是在我的PC上开发的。
EDIT 编辑
Not only it does not work but also when I try to open generated classes from target dir I get message the class file is not on the classpath 不仅不起作用，而且当我尝试从目标目录打开生成的类时，我收到消息， the class file is not on the classpath
1 个解决方案
解决方案1
0 已采纳 2010-05-17 10:58:37
Look at this post: 看这个帖子：
Eclipse/Java code completion not working Eclipse / Java代码完成无法正常工作
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