MyEclipse 解决 Errors running builder 'DeploymentBuilder' on project

MyEclipse保存.java文件并自动编译时报错:
Errors occurred during the build.
Errors running builder 'DeploymentBuilder' on project '项目名'.
java.lang.NullPointerException

产生此错误的原因:此项目不不是由MyEclipse创建;
所以你需要检查.project文件,添加 <nature>com.genuitec.eclipse.j2eedt.core.webnature</nature>
然后重新打开项目。

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