转自博客：

http://www.cnblogs.com/wingkin/archive/2012/08/22/2651304.html

 

在VS2010上编译水晶报表提示找提示以下错误：
Could not load file or assembly 'file:///C:\Program Files\SAP BusinessObjects\Crystal Reports for .NET Framework 4.0\Common\SAP BusinessObjects Enterprise XI 4.0\win32_x86\dotnet1\crdb_adoplus.dll' or one of its dependencies. The system cannot find the file specified.

只要在App.config中的

 
 
改成
useLegacyV2RuntimeActivationPolicy ="true">
 
 
就可以了。