MyEclipse10 部署 空指针异常处理

错误提示：

java.lang.NullPointerException
      at com.genuitec.eclipse.ast.deploy.core.Deployment.(Unknown Source)
      at com.genuitec.eclipse.ast.deploy.core.ModuleDeployment.(Unknown Source)
      at com.genuitec.eclipse.ast.deploy.core.WebDeployment.(Unknown Source)
      at com.genuitec.eclipse.ast.deploy.core.Deployment.create(Unknown Source)
      at com.genuitec.eclipse.ast.deploy.core.DeploymentManager.loadFromPreferences(Unknown Source)
      at com.genuitec.eclipse.ast.deploy.core.DeploymentManager.init(Unknown Source)
      at com.genuitec.eclipse.ast.deploy.core.DeploymentManager.(Unknown Source)
      at com.genuitec.eclipse.ast.deploy.core.DeploymentManager.getDefault(Unknown Source)

解决办法：

1. Shut down the workspace.

2. Delete  the file com.genuitec.eclipse.ast.deploy.core.prefs which is located at /.metadata/.plugins/org.eclipse.core.runtime/.settings/com.genuitec.eclipse.ast.deploy.core.prefs

3. restart myeclipse！ok