This assembly may have been downloaded from the Web. ......

錯誤消息例如：

 

Error 6 Could not load the assembly file:///D:\me\Projects\DLL\Newtonsoft.Json\Portable40\Newtonsoft.Json.dll.

This assembly may have been downloaded from the Web. If an assembly has been downloaded from the Web, it is flagged by Windows as being a Web file, even if it resides on the local computer. This may prevent it from being used in your project. You can change this designation by changing the file properties. Only unblock assemblies that you trust. See http://go.microsoft.com/fwlink/?LinkId=179545 for more information. Weishi

 

解決方法：

在DLL文件屬性裏點擊 「解除鎖定」按鈕！！