为什么会cannot write in directory D:\stata11\ado\plus\a？PS：我的stata是安装在stata11这个文件夹上的
下面是viewer上显示的：
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package installation
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package name:  ip29_1.pkg
        from:  （某网址，由于初次发帖，不允许贴网址）
checking ip29_1 consistency and verifying not already installed...
cannot write in directory D:\stata11\ado\plus\a
r(603);
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(click here to return to the previous screen)