Myeclipse错误:Errors occurred during the build. Errors running builder 'Deployment

Errors occurred during the build.
Errors running builder 'DeploymentBuilder' on project 'Test'.
java.lang.NullPointerException
Errors running builder 'DeploymentBuilder' on project 'chat_test'.
....

一、解决方法：
关闭MyEclipse工作区间（就是你出错的那个工作区间）。
删除工作空间下的“/.metadata/.plugins/org.eclipse.core.runtime/.settings/com.genuitec.eclipse.ast.deploy.core.prefs”

二、防止再次发生
取消myeclipse的自动部署:点击项目右键 ->properties -> Builders,将DeploymentBuilder勾选去除.




参考：http://www.cnblogs.com/Shock-W/p/5814306.html