未能加载文件或程序集“WebGrease, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35”或它的某一个依赖项。找到的程序集清单定义与程序集引用不匹配。 (异常来自 HRESULT:0x80131040)

解决：

把这段加到web.config文件的assemblyBinding节点下

 
  < 
  configuration 
  > 
  
     
  < 
  runtime 
  > 
  
         
  < 
  assemblyBinding  
  xmlns 
  ="urn:schemas-microsoft-com:asm.v1" 
  >           
  
             
  < 
  dependentAssembly 
  > 
  
                 
  < 
  assemblyIdentity  
  name 
  ="WebGrease" 
   publicKeyToken 
  ="31bf3856ad364e35" 
   culture 
  ="neutral" 
    
  /> 
  
                 
  < 
  bindingRedirect  
  oldVersion 
  ="0.0.0.0-1.3.0.0" 
   newVersion 
  ="1.3.0.0" 
    
  /> 
  
             
  </ 
  dependentAssembly 
  > 
  
         
  </ 
  assemblyBinding 
  > 
  
     
  </ 
  runtime 
  > 
  
 
  </ 
  configuration 
  >