Errors running builder "Integrated External Tool Builder" on project

eclipse编译工程里，报如下错误：

Errors during build.
<wbr> Errors running builder 'Integrated External ToolBuilder' on project 'dataprocessor'.<br><wbr> The file does not exist for the external toolnamed jspack.<br></wbr></wbr>

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处理：

On your project "project", right click ->Properties>Builders
Remove the missing builder

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转载自：http://blog.sina.com.cn/s/blog_87479ba60100x6uk.html