加载程序集错误
程序集加载跟踪: 下列信息有助于确定程序集“Microsoft.ApplicationBlocks.Data”无法加载的原因。
=== Pre-bind state information ===
LOG: DisplayName = Microsoft.ApplicationBlocks.Data
(Partial)
LOG: Appbase = file:///E:/web_data/UR_form/web
LOG: Initial PrivatePath = bin
Calling assembly : (Unknown).
===
LOG: Policy not being applied to reference at this time (private, custom, partial, or location-based assembly bind).
LOG: Post-policy reference: Microsoft.ApplicationBlocks.Data
LOG: Attempting download of new URL file:///D:/WINDOWS/Microsoft.NET/Framework/v1.1.4322/Temporary ASP.NET Files/root/c92a8410/6d1f1b47/Microsoft.ApplicationBlocks.Data.DLL.
LOG: Attempting download of new URL file:///D:/WINDOWS/Microsoft.NET/Framework/v1.1.4322/Temporary ASP.NET Files/root/c92a8410/6d1f1b47/Microsoft.ApplicationBlocks.Data/Microsoft.ApplicationBlocks.Data.DLL.
LOG: Attempting download of new URL file:///E:/web_data/UR_form/web/bin/Microsoft.ApplicationBlocks.Data.DLL.
LOG: Policy not being applied to reference at this time (private, custom, partial, or location-based assembly bind).
LOG: Post-policy reference: Microsoft.ApplicationBlocks.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=null
这是什么原因