Problem with MPC_Imposter_Capture' is not a standard unreal filename or a long path name.

Erikwong · May 13, 2023, 9:51am

Hi, I have a problem with MPC_Imposter_Capture during packaging (4.27):

UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogPackageName: Error: DoesPackageExist: DoesPackageExist FAILED: ‘/ImpostorBaker/ImpostorBaker/MPC/MPC_ImposterCapture’ 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/

', ‘/Niagara/’, ‘/GeometryMode/’, ‘/DatasmithContent/’, ‘/ChaosClothEditor/’, ‘/ChaosNiagara/’, ‘/ChaosSolverPlugin/’, ‘/GeometryCollectionPlugin/’, ‘/GeometryProcessing/’, ‘/MagicLeap/’, ‘/MagicLeapPassableWorld/’, ‘/MotoSynth/’, ‘/PythonScriptPlugin/’, ‘/MediaCompositing/’, ‘/AudioSynesthesia/’, ‘/OpenXR/’, ‘/OpenXREyeTracker/’, ‘/OpenXRHandTracking/’, '/P

ostSplashScreen/', ‘/Synthesis/’, ‘/WebBrowserWidget/’, ‘/Takes/’, ‘/OculusVR/’, ‘/SteamVR/’, ‘/Config/’, ‘/Script/’, ‘/Extra/’, ‘/Memory/’, or ‘/Temp/’.

Things that I’ve tried to fix:

Download the MPC_ImposterCapture.uasset and placed to Content/ImpostorBaker/ImpostorBaker/MPC/
Create back the missing folder as Content/Paper2D/… until /WebBrowserWidget and couldn’t go further from here onwards.
Uninstall Speedtree plug-in as some models are using this plug-in.

Finally, the problem is still the same.

Any expert who can help to fix will be much appreciated!

Erikwong · May 13, 2023, 12:32pm

[quote=“Erikwong, post:1, topic:1164366”]
Hi, I have a problem with MPC_Imposter_Capture during packaging (4.27):

UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogPackageName: Error: DoesPackageExist: DoesPackageExist FAILED: ‘/ImpostorBaker/ImpostorBaker/MPC/MPC_ImposterCapture’ 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/

', ‘/Niagara/’, ‘/GeometryMode/’, ‘/DatasmithContent/’, ‘/ChaosClothEditor/’, ‘/ChaosNiagara/’, ‘/ChaosSolverPlugin/’, ‘/GeometryCollectionPlugin/’, ‘/GeometryProcessing/’, ‘/MagicLeap/’, ‘/MagicLeapPassableWorld/’, ‘/MotoSynth/’, ‘/PythonScriptPlugin/’, ‘/MediaCompositing/’, ‘/AudioSynesthesia/’, ‘/OpenXR/’, ‘/OpenXREyeTracker/’, ‘/OpenXRHandTracking/’, '/P

ostSplashScreen/', ‘/Synthesis/’, ‘/WebBrowserWidget/’, ‘/Takes/’, ‘/OculusVR/’, ‘/SteamVR/’, ‘/Config/’, ‘/Script/’, ‘/Extra/’, ‘/Memory/’, or ‘/Temp/’.

Things that I’ve tried to fix:
[/solved]

I checked the Output log for all the red text and figured out there are materials missing the MPC_Imposter_Capture. After linking it back to all the missing links. It solved my problem.