无法加载文件或程序集Newtonsoft.json.dll

“Could not load file or assembly 'Newtonsoft.Json, Version=4.0.3.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)”.“Could not load file or assembly 'Newtonsof