Myeclipse启动tomcat报空指针的问题

Myeclipse启动后点击tomcat报错如下：
java.lang.NullPointerException
    at com.genuitec.eclipse.ast.deploy.core.Deployment.<init>(Unknown Source)
    at com.genuitec.eclipse.ast.deploy.core.ModuleDeployment.<init>(Unknown Source)
    at com.genuitec.eclipse.ast.deploy.core.WebDeployment.<init>(Unknown Source)
    at com.genuitec.eclipse.ast.deploy.core.Deployment.create(Unknown Source)
    at com.genuitec.eclipse.ast.deploy.core.DeploymentManager.loadFromPreferences(Unknown Source)

解决办法：
在工作空间Workspaces.metadata.pluginsorg.eclipse.core.runtime.settings目录下面找到名称为com.genuitec.eclipse.ast.deploy.core.prefs的文件，删除，重新启动Myeclipse即可。