Mosquito problem

"1. Solution exception:未能加载文件或程序集“Newtonsoft.Json, Version=4.5.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed”或它的某一个依赖项。系统找不到指定的文件。"

How could I solve this problem?

I have tried to download the relevant .dll files and put it in the gh components folder, but it doesn't work.

Thanks for all responses!