Bug Can't use Editor Coroutines in custom pacakge

Editor Coroutines package is installed and listed as a dependency but when trying to use it inside a custome package I get the followinf compilation error.

error CS0234: The type or namespace name 'EditorCoroutines' does not exist in the namespace 'Unity' (are you missing an assembly reference?)

The error does not occur with editor scripts inside the Assets/Editor folder

 

Ignore this. Just had to add the EditorCoroutines to the .asmdef

 

Please can you explain it a little bit? I'm facing the same problem, you have to add a .asmdef file to your Assets folder? Details please, noob with .asmdef files here! ^^'

 

Hi! I got the same problem - can't reference EditorCoroutines in unitypackage. After import my package to side project i got "error CS0234: The type or namespace name 'EditorCoroutines' does not exist in the namespace 'Unity' (are you missing an assembly reference?)".

What i have:
1. asmdef for my scripts (with linked reference to EditorCoroutines)
2. asmref in root of package to EditorCoroutines
3. package.json with "dependencies" pointed to EditorCoroutines

Seems Unity don't want to resolve external references in this way. Are there any other way to reference?

 

What you need to do is : Go to the Packaged Manager , and put as advanced Preview , and download the EditorCoroutines . I did this and fixed the problem.

I hope you understand ,and hekped you .

 

Yes, but i need to do it in target project where i import unitypackage. So it's not a good solution if considering unitypackage as all-in-one package. Or am i missed something?

 

Installing Memory Profiler package solved the problem for me ( If you install the Memory Profiler package it will automatically install the Editor Coroutines package as a dependency.)

 

Broken in Unity 2020.3.20f1 Editor Coroutines v 1.0.0 causes this error to be reported by Visual Studio.

 

Still an issue in 2020.3.22f1. Importing Editor Coroutines package or Memory Profiler package like @W_A_LL suggested didn't work. I feel this package shouldn't have left preview.

EDIT:
Checked for the Editor Coroutines .asmdef file and it is present in the PackageCache folder. Still looking for a solution.

EDIT2:
While pointing an error, the assemblies are somehow recognized and members of Unity.EditorCoroutines.Editor actually work. Getting an error still isn't good though, hope this gets fixed soon.

EDIT3:
A "Reimport All" in the project explorer fixed the issue for me.

 

this solved the problem for me. For begginners just Go to the packages folder>Editor Coroutines>Unity.EditorCoroutines.Editor.asmdef

and
"includePlatforms": [
"Editor",
"EditorCoroutines" //add this line
],

thats it

 

Still an issue in 2021.2.7f1.
I was having the same issues as @paternostrox and tried fixes suggested.
Editing the asmdef didn't work.

Closing the project and reopening fixed the issue.

 

This worked for me, also didn't know that I had to install the "Editor Coroutines" package in the package manager.

 

just confirming the issue was resolved by doing this. i installed the "EditorCoroutines" package from the package manager under unity registry.

 

If anyone is still having this problem, I think I know what NamelessPerson meant by "add EditorCoroutines to the .asmdef".
What fixed it for me was:
Going into Unity, and selecting the .asmdef file for my package. Then, in the Inspector window, and look where it says "Assembly Definition References". Click the '+' to add a new reference, and then find EditorCoroutines in the panel that pops up. Add that and it should work.