Could not create the view: An unexpected exception was thrown 【轉】

時間 2019-11-12

標籤 create view unexpected exception thrown 简体版

原文原文鏈接

轉：http://blog.csdn.net/shuangzixing520/article/details/35225105java

今天打開Myeclipse10的時候，發現server窗口出現一堆問題，問題如標題，而後下方出現了一堆java.lang.NullPointerException的問題。tomcat

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)
   at com.genuitec.eclipse.ast.deploy.core.DeploymentManager.init(Unknown Source)
   at com.genuitec.eclipse.ast.deploy.core.DeploymentManager.<init>(Unknown Source)
   at com.genuitec.eclipse.ast.deploy.core.DeploymentManager.getDefault(Unknown Source)
   at com.genuitec.eclipse.ast.deploy.core.ui.ServerTreeViewer$ServerTreeContentProvider.inputChanged(Unknown Source)
   at org.eclipse.jface.viewers.ContentViewer.setInput(ContentViewer.java:276)
   at org.eclipse.jface.viewers.StructuredViewer.setInput(StructuredViewer.java:1690)
   at com.genuitec.eclipse.ast.deploy.core.ui.ServerTreeViewer.<init>(Unknown Source)
   at com.genuitec.eclipse.ast.deploy.core.ui.ServerView.createPartControl(Unknown Source)
   at org.eclipse.ui.internal.ViewReference.createPartHelper(ViewReference.java:375)
   at org.eclipse.ui.internal.ViewReference.createPart(ViewReference.java:229)
   at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:595)
   at org.eclipse.ui.internal.PartPane.setVisible(PartPane.java:313)eclipse

這個問題的出現是在啓動myeclipse以後出現的，這時尚未啓動tomcat，所以能夠排除tomcat中項目代碼問題。應該是myeclipse在初始化工做空間workspace 的時候ide

出的問題。ui

仔細看下錯誤發現有一條 at com.genuitec.eclipse.ast.deploy.core.Deployment.這個錯誤，因而到工做空間下面的D:\Workspaces\.metadata\.plugins\org.eclipse.core.runtime\.settings目錄下面找到了名稱爲at com.genuitec.eclipse.ast.deploy的prefs文件，打開文件一開，哈哈，原來裏面都是原來的一些項目信息，怪不得會報java.lang.NullPointerException錯誤呢。果斷將此文件刪除，重啓myeclipse10問題解決spa

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