2017-7-19

A deployment is currently in progress. If you close this dialog the deployment will continue in the background but you must wait for it to complete before running your application. Do you still want to close this dialog?

一个部署正在进行中。如果您关闭此对话框的部署将继续在后台，但你必须等待它运行应用程序之前完成。你还想要关闭这个对话框？

An internal error occurred during: "Add Deployment".
java.lang.NullPointException
导入非本机项目，jdk版本不一致
右键项目名→Properties→Java Build Path→Libraries→选中JRE System Library[**********]→Edit→选中“Workspace default JRE(**********)”→Finish

Update progress has encountered a problem
设置 Window->Preferences->General->Startup and Shutdown
把其中“Automatic Update Scheduler”前面的钩去掉即可。