问题原因,EF当前版本没有该方法,将EF版本升级即可. 1.packages.config <package id="EntityFramework" version="6.1.3" targetFramework="net40" /> 2.app.config <configSections> <!-- For more information on Entity Framework configuration,
This is a problem which can occur when there is an old version of a DLL still lingering somewhere around.Make sure that the latest assemblies are deployed and no duplicated older assemblies are hiding in certain folders.Your best bet would be to dele
错误日志 See the end of this message for details on invoking just-in-time (JIT) debugging instead of this dialog box. ************** Exception Text ************** System.IO.FileNotFoundException: Could not load file or assembly 'System.Core, Version=3.5.