Bug TTF import error every time target platform switches

Unity v2020.3.17f1, TMP v3.0.6

Every time we switch the target platform the following error is logged for all of our TTF assets:
The asset at Assets/Art/UI/Fonts/Barlow/Barlow-BlackItalic.ttf has been scheduled for reimport during the Refresh loop and Loading of it has been attempted.
Doing this can lead to the AssetDatabase returning two versions of the same asset.
Please ensure that code which attempts to reimport this asset does not run while the editor is Refreshing.
You can do so by checking the value of EditorApplication.isUpdating

We have no custom importers for these assets.

Has anyone seen this?

 

Unity v2020.3.18f1,

Same problem -

The asset at Assets/UI - BUILDER/Source Files/Fonts/OpenSans-Familiy/OpenSans-BoldItalic.ttf has been scheduled for reimport during the Refresh loop and Loading of it has been attempted.
Doing this can lead to the AssetDatabase returning two versions of the same asset.
Please ensure that code which attempts to reimport this asset does not run while the editor is Refreshing.
You can do so by checking the value of EditorApplication.isUpdating

 

Unity 2020.3.26/2020.3.27

This has been happening to me on occasion when changing GIT branches. In my case it's not related to TMP, but still seems to be a similar issue. Sometimes seems to cause weird issues with my prefabs. When it does, I need to delete my Library folder to fix it.

First I get this several times in a row:

The asset at Assets/Prefabs/UI/Menu/Options.prefab has been scheduled for reimport during the Refresh loop and Loading of it has been attempted.

Doing this can lead to the AssetDatabase returning two versions of the same asset.

Please ensure that code which attempts to reimport this asset does not run while the editor is Refreshing.

You can do so by checking the value of EditorApplication.isUpdating

Then this:

Problem detected while importing the Prefab file: 'Assets/Prefabs/Singletons/CoreGameManager.prefab'.

The file might be corrupt or have missing nested Prefabs. See details below.

Errors:

    Prefab instance problem: Options (Missing Prefab with guid: 573131f9fafc0c34fa9c4d818a85dce0)

 

Still happen in Unity 2021.1.22
It seems do not affect anything but it's still a bug

 

bump.
Unity 2021.2.11.

 

2020.3.30f1c1 LTS still has this bug.
Due the reason I can not create AssetBundles. May be it has some relationship with version control.
We use PlasticSCM, but one of my teammate doesn't has this issue.

 

I had same problem after switching git branches and deleting Library resolved. (Unity 2020.3.33f1)

 

Thank you for reply.
I tried deleting the Library folder and re-opening project.
But the issue is still there.
And I found that even if the error message displayed, but the asset bundles were built normally...No assets missing.
It seems like the issue doesn't cause anything wrong just show you the error message.

BTW, I updated to 2020.3.32f1c1.

 

I've had this issue for 2 years now, and was checking in here to see if there's a solution yet but apparently not.

It used to only happen when I changed platforms via script, but now it happens if I change platforms via the Build Settings window as well.

Happens on both Mac and Windows.

 

I've also been having this problem now, on 2020.3.26f1. Also found that there are errors specifically with font files like the examples here and also seeing no issues with the build either. It's probably just something that can be ignored but it's not very clean with this stuff popping up and makes me concerned for potential hidden issues. I was hoping to avoid random errors going off like this.

Can also report that I started noticing it when using BuildPipeline.BuildPlayer which internally seems to call a target switch. After that I tried target switching manually from the build menu but I still saw it when I switched to the Mac platform. Then when switching manually to Linux it didn't happen(?) So maybe it's just random and/or happens on the first switch when Unity runs? Not sure about the specifics, but I can try clearing out my Library folder like was suggested.

 

Hello All,
Its resolved by deleteting the folder Library!! I use Unity version LTS 2020.3.34f1

Close unity > then delete the folder Library > re-open the project

Hope its helpful!!

 

I can't believe the response to this bug is to delete the Library folder. What a cop out.

Even with the Unity accelerator, a fresh import of our project takes hours. We can't afford to do that with every build.

This bug absolutely is causing problems - it causes AssetDatabase.LoadAsset to return null which breaks some of our pre-processing...

 

I was having this problem so after reading this post I closed Unity (2021.3.17f1) and deleted my Library folder. When I re-launched I got many, many errors. So I deleted the local project and re-downloaded from GitHub. Same errors. Package manager errors out and won't open.

I was supposed to send this app to beta testing at COB. I guess that's not happening, since it looks like I'm going to have to start from scratch. No biggie, only several weeks of work lost.

 

I had this problem with the font assets while changing platform, to solve it I closed the project and changed the target platform in Unity Hub from "Current Platform" to the device I was building for, hope it helps =D

 

My situation is that I made this error while packaging the assetbundle, and later found out that it was caused by the inconsistency between the selected platform and the platform packaged by the script. I switched the Mac to Windows and there was no error.

 

Are you suggesting we do a re-import every time we switch branches or something like that? This is crazy, I'll lose HOURS waiting for a re-import with my mid-end hardware!

 

I also had this problem while building the AssetBundle, but changing the build target to "EditorUserBuildSettings.activeBuildTarget" in the AssetBundle build script solved the problem.
Reference URL: https://docs.unity3d.com/kr/2021.3/Manual/AssetBundles-Building.html

 

@Unity

https://issuetracker.unity3d.com/issues/errors-when-reimporting-font-assets-folder

So you are not planning on backporting this fix?

 

Also had the same bug (suspect related to TMP), and I changed "Build Settings" from Windows to WebGL (which is what I was going to build in), and the error message disappear by it self.
I do not know enough to know what is happening, but just to provide additional reference.