卸载了jdk1.8重新安装jdk1.7,在Eclipse中运行Java程序,出现报错:

JavaVirtual Machine Launcher: A Java Exception has occurred

Java Virtual Machine Launcher: A Java Exception has occurred


检查了环境变量没有错误等等之后,找到解决办法:

1.点击Project,选择Properties

Java Virtual Machine Launcher: A Java Exception has occurred

 

2.选择javaBuild Path,并在Libraries选项卡里面,Remove较高版本的JRE System Library

Java Virtual Machine Launcher: A Java Exception has occurred

 

3.点击Add Library,并选择JRE System Library,然后点击Next

Java Virtual Machine Launcher: A Java Exception has occurred

 

4.在接下来的页面,不要默认的选择Workspace default JRE(jre),而是选择Execution environment,然后在下拉选择框中,选择自己新安装的低版本的jre,然后点击Finish

Java Virtual Machine Launcher: A Java Exception has occurred

重新编译后,问题解决

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