Unity出現access denied與mono develop auto completion失效的解決方式

最近一直有個錯誤一直很礙眼，專案仍可運作，但一行紅色錯誤一直揮之不去就是很礙眼，主要是這個錯誤“unity unauthorizedaccessexception access to the path is denied…”，這個錯誤連帶(可能)使得Mono Develop的自動顯示程式碼的功能也失效了，搞了幾天，現在大概有個解決的方式了

recently, I was annoying by an error “unity unauthorizedaccessexception access to the path is denied…”. This error also failed auto completion in the Mono Develop. Finally, I seems solve this issue today…

只要在專案資料夾中把帶有以下副檔名的檔案都刪除：

All you need to do is to remove all files which come with following names in the project folder (outside Unity)

.unityproj .csproj .sln

然後重開Unity就好了