Package project cook failed how do i fix

Development Platform & Builds
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1

I’m trying to package a project for windows on Ue4 4.25 source build and when it dose thee cook command i get this error
this even happens when i moved my content over to a new project

UATHelper: Packaging (Windows (64-bit)): LogPackageName: Error: DoesPackageExist: DoesPackageExist FAILED: ‘/DirGravity/Assets/Materials/M_Cow_Pasture_Inst’ is not a standard unreal filename or a long path name. Reason: Path does not start with a valid root. Path must begin with: ‘/Engine/’, ‘/Game/’, ‘/Paper2D/’, ‘/AnimationSharing/’, ‘/GeometryMode/’, ‘/
DatasmithContent/’, ‘/ChaosClothEditor/’, ‘/ChaosNiagara/’, ‘/ChaosSolverPlugin/’, ‘/GeometryCollectionPlugin/’, ‘/GeometryProcessing/’, ‘/Niagara/’, ‘/MagicLeap/’, ‘/MagicLeapPassableWorld/’, ‘/MediaCompositing/’, ‘/MovieRenderPipeline/’, ‘/OculusVR/’, ‘/PostSplashScreen/’, ‘/SteamVR/’, ‘/Config/’, ‘/Script/’, ‘/Memory/’, or ‘/Temp/’

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2

Try looking for M_Cow_Pasture_Inst asset, looks like there’s something wrong with it. It might be in a too long path directory.
Also try clicking on Content folder and Fix Up Redirectors.

3

m cow asset is a part of directional gravity plugin winch i removed before updating to 4.25 so i cant find it in the editor nor file explorer

4

I see. Then I suggest you to look in packaging settings under Edit->Project Settings->Packaging and look for any Additional Asset Directories to Cook. It might be included there, but since it’s gone it might give this error.

5

Ok I was able to fix it ther was a mesh that had one material based of m cow plaster and deleting it fixed it

6

Fix Up Redirectories helps for me! Thnx man! Long path to package game with plugin)

7

For me the plugin wasn’t enabled in the Plugins Browser.