求助：用VS.C#不能调试CE中的程序？

VS中生成的测试工程，结果下载到WINCE中，调试运行是出现如下错误：

't4.exe' (Managed): Loaded 'mscorlib.dll', No symbols loaded.
't4.exe' (Managed): Loaded 'd:\test\t4\t4\bin\debug\t4.exe', Symbols loaded.
't4.exe' (Managed): Loaded 'System.Windows.Forms.dll', No symbols loaded.
't4.exe' (Managed): Loaded 'System.dll', No symbols loaded.
't4.exe' (Managed): Loaded 'System.Drawing.dll', No symbols loaded.

程序能够正常运行，但是断点均变成无效，不能调试。请问是不是什么文件没拷进去？

程序可以正常运行，说明.Net环境已经OK

不能调试，应该是Debug相关的DLL没有