[PackagingError] Path does not start with a valid root

ESCA_GAMES · January 4, 2022, 8:06am

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/’, ‘/DatasmithContent/’, ‘/GeometryMode/’, ‘/Sp
eedTreeImporter/’, ‘/ChaosClothEditor/’, ‘/ChaosNiagara/’, ‘/ChaosSolverPlugin/’, ‘/GeometryCollectionPlugin/’, ‘/GeometryProcessing/’, ‘/MotoSynth/’, ‘/Niagara/’, ‘/UIWS/’, ‘/MagicLeap/’, ‘/MediaCompositing/’, ‘/MagicLeapPassableWorld/’, ‘/AudioSynesthesia/’, ‘/PostSplashScreen/’, ‘/SunPosition/’, ‘/Synthesis/’, ‘/AnimationSharing/’, ‘/OculusVR/’, ‘/SteamVR
/’, ‘/Config/’, ‘/Script/’, ‘/Extra/’, ‘/Memory/’, or ‘/Temp/’

Anyone know what is this problem meaning? and where is this path…

Yaklakootmaa2 · January 6, 2022, 2:33pm

Haven’t got this issue but as I understood the right paths are

/Engine/’, ‘/Game/’, ‘/Paper2D/’, ‘/DatasmithContent/’, ‘/GeometryMode/’, ‘/Sp
eedTreeImporter/’, ‘/ChaosClothEditor/’, ‘/ChaosNiagara/’, ‘/ChaosSolverPlugin/’, ‘/GeometryCollectionPlugin/’, ‘/GeometryProcessing/’, ‘/MotoSynth/’, ‘/Niagara/’, ‘/UIWS/’, ‘/MagicLeap/’, ‘/MediaCompositing/’, ‘/MagicLeapPassableWorld/’, ‘/AudioSynesthesia/’, ‘/PostSplashScreen/’, ‘/SunPosition/’, ‘/Synthesis/’, ‘/AnimationSharing/’, ‘/OculusVR/’, ‘/SteamVR
/’, ‘/Config/’, ‘/Script/’, ‘/Extra/’, ‘/Memory/’, or ‘/Temp/’

check this ‘/ImpostorBaker/ImpostorBaker/MPC/MPC_ImposterCapture’

Erikwong · May 13, 2023, 9:27am

Hi, I have the same problem with 4.27 during packaging:

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, 12:37pm

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.