本文地址：[http://blog.csdn.net/sushengmiyan/article/details/41242993](http://blog.csdn.net/sushengmiyan/article/details/41242993) 本文作者：[sushengmiyan](http://blog.csdn.net/sushengmiyan) ------------------------------------------------------------------------------------------------------------------------------------ 使用cmd打包ext的时候报了一个诡异的错误。细细找来，发现是代码书写导致。现在记录一下： 错误详细信息： [ERR] C2009: YUI Parse Error (identifier is a reserved word => debugger;) -- unknown-file:198775:12 [ERR] C2009: YUI Parse Error (Compilation produced 1 syntax errors. => null) -- unknown-file:2 [ERR] [ERR] BUILD FAILED [ERR] com.sencha.exceptions.ExBuild: Failed to compress input [ERR]   at com.sencha.tools.compressors.yui. [ERR] YuiJavascriptCompressor$2.invoke(YuiJavascriptCompressor.java:103) [ERR] [ERR] Total time: 10 seconds [ERR] The following error occurred while executing this line: E:\workspaces\myeclipse2014\newcourt\WebRoot\.sencha\app\build-impl.xml:260: The following error occurred while executing this line: E:\workspaces\myeclipse2014\newcourt\WebRoot\.sencha\app\js-impl.xml:59: com.sen cha.exceptions.ExBuild: Failed to compress input 看错误第一行就可以看出是解析 debugger的时候出错的，看我的代码，发现我调试的时候debugger写入了没有去掉，打包的时候就出现了这个错误，将debugger去掉，再重新打包，发现，程序正常打包。