eclipse装了SWT插件后运行不了的有关问题

eclipse装了SWT插件后运行不了的问题
提示:Create a new GWT user interface. Requires loading additional WindowBuilder toolkits.
然后面要装的我都装好了。为什么还是一直要装。
Cannot complete the request. See the error log for details.
"WindowBuilder Core" will be ignored because a newer version is already installed. 
有几个的提示是上面的,然后就不行了。。。求解。

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弱爆了,,,嘻嘻嘻