Bug Importer(MonoImporter) generated inconsistent result for asset

When I reimport a folder in our project containing scripts I get this for all the scripts in there.

Here's an example:

Importer(MonoImporter) generated inconsistent result for asset(guid:124ceec668bddc3458259a2cc6ebd3be) "Packages/com.kite.rendering/Runtime/RenderTargetHandle.cs"

Reimporting again doesn't fix the issue.

- Does this mean the import generates a different result each time?
- Or does it mean when the reimport generates a different result it is not stored in the AssetDatabase?
(That would defeat the purpose of reimport, because if there's one faulty import there would be no way to collect it.)
- What is even generated from a C# script can be inconsistent?
- Is this our fault, or a Unity bug?

 

I also wanted to ask about the same thing.
I started getting these "inconsistent result for asset" warnings in 2020.2, too. Occasionally for some random scripts, but consistently for the URP forward renderer asset (when I save a scene, etc.):

Importer(NativeFormatImporter) generated inconsistent result for

asset(guid:4a8e21d5c33334b11b34a596161b9360)

"Assets/Rpg/Core/Settings/ForwardRenderer.asset"

I have essentially the same questions:
– Is it my fault or a bug?
– Is there a way to resolve it, when reimporting doesn't help?

 

Hi,
thank you very much for the thorough explanation!

It does seem to be a bug – I ran

-consistencyCheck

on the project, and it pointed out "inconsistent results" even in Unity packages like Input System, Shader Graph etc., alongside with my own scripts, assets and folders.
I checked the Forward Renderer Data asset, specifically, because it pops up regularly – and the files seem to be identical; at least binary2text output is.

(This error also appeared during the consistency check a few times; I'm putting it here just for the sake of completeness.)

Assertion failed on expression: 'ins.second || ins.first->second == artifactID || (ins.first->second == CircularDependencyArtifactID() && !artifactID.IsValid()) || GetPathFromAssetGuidV2(key.GetGUID()).ends_with(".cs")'

 

Yeah, seems like there's something seriously broken right now. I'm on 2020.2b14 and get many of those warning which block me from testing my game.

@henriksc would you advice to go back to a previous version of the editor and see if the errors go away or would should be the best way to fix the issues?

 

How recently?
Is the fix in b13 or b14 or still unreleased?
I'm asking because I frequently switch back and forth between b13 and b14 because of various issues.
I'll do the compare if needed, but if I'm on a version with a known bug than I won't bother.

 

Alright, good to hear, as I was concerned about it. I'm experiencing a strange problem with one of my code files and the warning is mentioning a config file which relates to that code. So I was wondering if that is causing the problem or not. I'll investigate a bit more what the problem is and submit a bug report if I find anything which is not on our side.

 

Is there an ETA for the backport?
This is still in 2020.2 Release f01...

 

I still experience this problem in the new 2021.1.0b4, though (always when I save a scene).
Is the issue supposed to be fixed in that version?

 

I sent one. Case 1310981. It's related to the same Forward Renderer URP asset I mentioned earlier in the thread.

Although you should know I can't replicate the bug anymore in a new test project nor when I do a full project reimport (i.e. deleting the Library folder or “Reimport All”) in the beta version. Still, it seems the consistency checker problem was carried over from 2020.2 and persists even after the updates or when I try to “Reimport” only the one problematic asset.

Therefore if someone (like me) encountered the issue in 20.2 and didn't do a full project reimport after updating to 21.1, they might still get the warnings.

 

Is it possible that this issue may be affecting lightmaps as well? We've already spent days hunting down the causes of a lighting issue happening to most of our builds. This is how it looks on Editor and on builds coming from some PCs:


And this is how it looks on builds coming from our build server and eventually from a couple other PCs:


Sometimes we get messages like this one affecting lightmaps and lighting data assets:

Importer(NativeFormatImporter) generated inconsistent result for asset(guid:4408f65abb86b7e47844131dbf0dc42d) "Assets/PWS/Scenes/Game/Game_ResidentialSmall_Backyard/LightingData.asset"

This has been reproduced on Unity 2020.2.2f1, 2020.2.5f1 and 2020.2.7f1. We tried purging the Accelerator cache and also disabling it altogether, deleting the Library folder, without success. We were unable to isolate the issue, which is why we haven't reported a bug yet. I tried opening editor with

-consistencyCheck

and got 999+ "inconsistent results" warnings, so I suspect the issue isn't in our code but an Unity bug.

We're now preparing a build using 2021.1.0b10.2062, will reply to this post with its results once they're available.

 

I'm seeing this too now after upgrading my project from 2020 to 20201.1.1f1. For me the error is occuring on the Global Volume Profile post processing asset, which is causing my post process not to work.

 

@LeonhardP Unfortunately, this seems to pop up again after I updated to 2021.2.0a19 (previously, a16 and a17 were fine).
Same problem, same reproduction steps. Saving a scene or manually reimporting shows the warning.

When manually reimporting the Universal Renderer Data asset:

Code (CSharp):

1. Importer(NativeFormatImporter) generated inconsistent result for asset(guid:8aa25a71635ef2140bcab240d45a5687) "Assets/Rpg/Core/Settings/URP/URP.asset"
2. UnityEditor.RetainedMode:UpdateSchedulers ()

Reimporting a scene:

Code (CSharp):

1. Importer(DefaultImporter) generated inconsistent result for asset(guid:500251ccce6614d4baabf5558d24e1c5) "Assets/Rpg/Levels/_Test/Playground/Playground.unity"

Edit:
I ran a

-consistencyCheck

on the project and it found problems in almost everything, e.g.:

Code (CSharp):

1. ConsistencyChecker - guid: b5654879e399f0a42abf0e92a05b1eaf, dependenciesHash.value: 417f59c3aa5d7aed7a76ce87356ec873, artifactid: 0e9ef3e44918c2cba848e551c375a8d6, producedFiles[0].extension: , producedFiles[0].contentHash: dce563842f3a9ccb1b19fbc20643a8ee
2. ConsistencyChecker - guid: b5654879e399f0a42abf0e92a05b1eaf, dependenciesHash.value: 417f59c3aa5d7aed7a76ce87356ec873, artifactid: 5dd549f110adece659649372ea767981, producedFiles[0].extension: , producedFiles[0].contentHash: dce563842f3a9ccb1b19fbc20643a8ee
3. Importer(TextScriptImporter) generated inconsistent result for asset(guid:b5654879e399f0a42abf0e92a05b1eaf)
4. "Packages/com.unity.addressables/readme.md"

 

I was still getting this in 2020.3.11f1 until I did a Reimport All on the project. Now I can reimport individual files/folders without triggering this warning.

 

Yes, but in my experience, it's only temporary. And “Reimport All” is essentially an overnight process, so I don't want to do that too often.

 

I have this issue in my project.
Deleting Library or Reimporting doesn't work. I've also tried deleting the prefab and making it again and still the same result.
Is there a way of disabling the check for inconsistencies?

I have tried in versions 2021.1.24f1. 2021.2.15f1 and 20213.3f1

 

Also happens in 2021.3.4f1

Importer(TextureImporter) generated inconsistent result for asset(guid:a91454a58f6257d4396ab45a166d7d43) "Assets/Plugins/TextMesh Pro/ResourcesCompat/TMPro/Sprites/items_icons_2.png"

If I rename it to items_icons_3.png, the error disappears. I tried disabling Accelerator, with no luck

 

I got those errors on blender files ( through fbx importer on 2022.1.0f1

I uninstall it and give a try to 2022.1.6f1 ( as am unable to connect to update server.... )

it is bad IMHO that unity raises such error with so few information:
<< i imported your model but it is broken >>
And now what ?
U3D should say more about what is broken ! mostly because user can do nothing inside U3D to solve the problem

 

strange....

editing and saving the model with blender and importing to 2022.1.6 works with no error.
R-click on the file in project and choosing reimport raises the error...
Looks like it is some bug^^

 

After upgrading from 2021 to Unity 2022.1.7, we get this warning upon reimporting any .asset file (mostly ScriptableObjects).

ConsistencyChecker - guid: 216cf4e0e65a6fb4381c1bd92fb77c16, dependenciesHash.value: 298d625d893d1456edfa6bcc84359056, artifactid: 49927163b8afc3f0422ff2a97019eea0, producedFiles[0].extension: , producedFiles[0].contentHash: 8a08c766c149aa5e93ffc25894e2d697

ConsistencyChecker - guid: 216cf4e0e65a6fb4381c1bd92fb77c16, dependenciesHash.value: 298d625d893d1456edfa6bcc84359056, artifactid: e8293c57d11b048c0caf20d11f36de77, producedFiles[0].extension: , producedFiles[0].contentHash: 2025297025472bc430e2ff167b5567c0

The contentHash is always the same pair of values even for different ScriptableObjects.
The two binary files differ, but running it through binary2text gave the same output text.
I attached the 4 files if that is any help.

 

Still have this behaviour on Reimport, in Unity 2021.3.9f1.

 

Just had this issue as well, is there any fix or do I have to delete and remake?

 

Oh yeah, I also have this 2022.1.17

 

Unity 2021.3.16 constantly getting this when reimporting blend files.

 

I get the following warning in my environment(Windows Unity 2021.3.18f1)
"Importer(TextScriptImporter) generated inconsistent result for asset"

Please be more specific about what information is used to obtain the guid, and what changes will cause the guid to change.
Are CreationTime, LastWriteTime, LastAccessTime, etc. of the file used as well as the file path?

What is written below is too abstract
https://docs.unity3d.com/Manual/ImporterConsistency.html
It does not help to solve the problem of why the guid has changed.

 

I'm running into these warnings in Unity 2022.2.8

It only started appearing AFTER I used the right-click > Reimport option, which I did because some scripts weren't compiling/Unity wasn't recognizing some of them as MonoBehaviours after moving them to different folders.

The Reimport option seems to have fixed the MonoBehaviour issue but now it just keeps giving me the warnings at runtime. For example:

Importer(DefaultImporter) generated inconsistent result for asset(guid:97aba4f7524399e4795d2cecbb1c7efb) "Assets/Scripts/Foundation/Pickup"

I tried more recent versions but they were a little too crashy to continue developing in so I rolled back to the last known non-crashy one.

 

This bug is still in Unity version: 2022.3.1f1 (Android platform)
I test that windows platform is correct at the same Unity version.

The BUG is: "Reimport" and "Reimport All" has generated inconsistent result.

The worst problem is that if you use the AssetBundle system, the inconsistent result will lead to different bundle file. (Generate md5 use the bundle file content)

THE ONLY WAY I FOUND TO AVOID BUNDLE UNEXPECTED CHANGE:
Every time to build the AssetBundle, you can reimport all assets in the project.

 

Wanted to add my own experience as well - after reinstalling windows on my desktop and pulling the same project (.meta files included) from my git repo, I get inconsistent results between Reimport and Reimport All, particularly for .blend files, but also for some shaders. Reimport All seems to not help and broken things are still broken, while Reimport on individual files one by one seems to assign a new guid and fix it. Not exactly very fun to do when you have a lot of blender files... Unity version is 2021.2.7f1

 

hello we have exactly the same issue but the ReImport All solution did not fix it.
we are using 2022.2.2f1.
can you tell us more what you did? are you using addressables for a live game?
thanks a lot for sharing this and for your help!