Unable to open C:/Program Files/Unity/Editor/Data/UnityExtensions/Unity/GUISystem/UnityEngine.UI.dll: Check external application preferences

PLease help me !! I have read a lot and can’t find anyone can help…I’m really sure I’m install monodevelopment…,external tool monodevelop …ready !! still cant work…

Hi @minhphan1318 ,
I have the same issue and can’t find a solution. So I will tell you a workaround I’ve discovered just now:
Instead of adding a component and selecting Script, just right-click on your assets and use Create-> C# Script.
Then, select the entity you want which you want to use the script on, click on Add Component->Scripts and voilà! There it is, the new script you just created manually.
Double-click the script and monodevelop or visual studio will open it properly.

Now for real, it’s my first time using unity, first tutorial, just at the beginning and the shenanigans are already showing up :frowning: