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Question by dsillman2000 · Feb 23, 2014 at 05:56 PM · errornamespacenot found

UnityEngine could not be found?

Thanks for looking at my question. I am trying to code my game in MonoDevelop(C#), but I could never compile correctly because, next to the line,

 using UnityEngine;

The error said,

 using UnityEngine;                The type or namespace name 'UnityEngine' could not be found. Are you missing a using directive or assembly reference?

I recently started coding this at my dad's house on a PC. I transferred it over here, to my Mom's house (on a Mac), using Google Drive. Now, all of a sudden this error won't stop showing up.

Help please?

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avatar image KiraSensei · Feb 23, 2014 at 05:57 PM 0
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Do you have Unity installed in the second computer ?

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Answer by Errox · Apr 20, 2020 at 08:52 AM

Might be a rare occurence for others; anyhow, here's what happened to me:

I occasionally switch workstations (PC to laptop). In doing so I plug/unplug my SSD. Guess what — the directory in which Unity is installed is different depending on the station. Took me only a couple of days to figure that one out.

So now I adjust HintPaths on all References inside the Assembly-CSharp.csproj file manually. Just takes a second and won't bother me too much as I don't switch all too often anyways.

Hope this saves someone a day or two (fine, may as well be just a minute).

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Answer by LuigiDreemurr · Sep 23, 2021 at 03:51 AM

So my issue didn't like the Unity engine files (not found) so MonoBehaviour for example wasn't working or being recognized. Weird solution for me. New install on a new PC for both so I thought everything should just work (that's not crazy right? Expecting thing to work?).


I went to package manager and updated "Visual Studio Code Editor" and "Visual Studio Editor" and that got my 2019 VS working for unity.

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