Errors occurred during the build. Errors running builder 'DeploymentBuilder' on project 'myf'. java

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

此問題一般發生在Myeclipse 儲存檔案並自動部署時候。 Errors occurred during the build. Errors running builder 'DeploymentBuilder' on project'項目名'. java.lang.NullPointerException   有一種產生此錯誤的原因是因為此項目不不是由myeclipse建立的。 所以你需要檢查.project 檔案。 並且添加com.genuitec.eclipse.j2eedt.core.webnature

1、首先關閉MyEclipse工作空間。 2、然後刪除工作空間下的 “/.metadata/.plugins/org.eclipse.core.runtime/.settings/com.genuitec.eclipse.ast.deploy.core.prefs”
取消myeclipse的自動部署: 右鍵點擊項目 ->properties -> Builders,將DeploymentBuilder勾選去除.