UE5.4 does not open a packaged project

Development Platform & Builds
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1

LogDerivedDataCache: Warning: Shared: Process has an existing cache store at path F:/CacheUE, and the duplicate is being ignored.
LogStreaming: Warning: Failed to read file ‘…/…/…/Engine/Plugins/Developer/PlasticSourceControl/Resources/Icon128.png’ error.
LogStreaming: Warning: Failed to read file ‘…/…/…/Engine/Platforms/VisionOS/Content/Editor/Slate/Launcher/Platform_VisionOS_24x.png’ error.
LogStreaming: Warning: Failed to read file ‘…/…/…/Engine/Platforms/VisionOS/Content/Editor/Slate/Launcher/Platform_VisionOS_128x.png’ error.
LogStreaming: Warning: Failed to read file ‘…/…/…/Engine/Plugins/Developer/PlasticSourceControl/Resources/Icon128.png’ error.
LogStreaming: Warning: Failed to read file ‘…/…/…/Engine/Platforms/VisionOS/Content/Editor/Slate/Launcher/Platform_VisionOS_24x.png’ error.
LogStreaming: Warning: Failed to read file ‘…/…/…/Engine/Platforms/VisionOS/Content/Editor/Slate/Launcher/Platform_VisionOS_128x.png’ error.
LogLinker: Warning: [AssetLog] E:\Prog\Sur\Content\ParagonFey\Characters\Heroes\Fey\Meshes\Fey_Skeleton.uasset: Failed to load ‘/Game/ParagonFey/Characters/Heroes/Fey/Meshes/Orion_Proto_Retarget’: Can’t find file.
LogLinker: Warning: [AssetLog] E:\Prog\Sur\Content\ParagonFey\Characters\Heroes\Fey\Meshes\Fey_Skeleton.uasset: VerifyImport: Failed to load package for import object ‘Package /Game/ParagonFey/Characters/Heroes/Fey/Meshes/Orion_Proto_Retarget’
LogLinker: Warning: [AssetLog] E:\Prog\Sur\Content\ParagonGideon\Characters\Heroes\Gideon\Meshes\Gideon_Skeleton.uasset: Failed to load ‘/Game/ParagonGideon/Characters/Heroes/Gideon/Meshes/Gideon_SkeletonRig’: Can’t find file.
LogLinker: Warning: [AssetLog] E:\Prog\Sur\Content\ParagonGideon\Characters\Heroes\Gideon\Meshes\Gideon_Skeleton.uasset: VerifyImport: Failed to load package for import object ‘Package /Game/ParagonGideon/Characters/Heroes/Gideon/Meshes/Gideon_SkeletonRig’
LogLinker: Warning: [AssetLog] E:\Prog\Sur\Content\ParagonSerath\Characters\Heroes\Serath\Meshes\Serath_Skeleton.uasset: Failed to load ‘/Game/ParagonSerath/Characters/Heroes/Serath/Meshes/Orion_Proto_Retarget’: Can’t find file.
LogLinker: Warning: [AssetLog] E:\Prog\Sur\Content\ParagonSerath\Characters\Heroes\Serath\Meshes\Serath_Skeleton.uasset: VerifyImport: Failed to load package for import object ‘Package /Game/ParagonSerath/Characters/Heroes/Serath/Meshes/Orion_Proto_Retarget’
LogEOSSDK: Warning: LogEOS: Error response received from backend. ServiceName=[Friend], OperationName=[GetBlockList], Url=[], HttpStatus=[403], ErrorCode=[errors.com.epicgames.common.insufficient_scopes], NumericErrorCode=[1056], ErrorMessage=[Insufficient access scopes. Expected: [friends_list]], CorrId=[EOS-e4PFO_mNqUySHTSsTiT4QA-fENCrHmM4UqV6064eIPwrQ]
PackagingResults: Warning: Shared: Process has an existing cache store at path F:/CacheUE, and the duplicate is being ignored.
PackagingResults: Warning: Unable to find package for cooking /Engine/Maps/Entry. Instigator: { GameDefaultObject: ServerDefaultMap }.
PackagingResults: Warning: [AssetLog] E:\Prog\Sur\Content\ParagonGideon\Characters\Heroes\Gideon\Meshes\Gideon_Skeleton.uasset: Failed to load ‘/Game/ParagonGideon/Characters/Heroes/Gideon/Meshes/Gideon_SkeletonRig’: Can’t find file.
PackagingResults: Warning: [AssetLog] E:\Prog\Sur\Content\ParagonGideon\Characters\Heroes\Gideon\Meshes\Gideon_Skeleton.uasset: VerifyImport: Failed to load package for import object ‘Package /Game/ParagonGideon/Characters/Heroes/Gideon/Meshes/Gideon_SkeletonRig’
PackagingResults: Warning: [AssetLog] E:\Prog\Sur\Content\ParagonSerath\Characters\Heroes\Serath\Meshes\Serath_Skeleton.uasset: Failed to load ‘/Game/ParagonSerath/Characters/Heroes/Serath/Meshes/Orion_Proto_Retarget’: Can’t find file.
PackagingResults: Warning: [AssetLog] E:\Prog\Sur\Content\ParagonSerath\Characters\Heroes\Serath\Meshes\Serath_Skeleton.uasset: VerifyImport: Failed to load package for import object ‘Package /Game/ParagonSerath/Characters/Heroes/Serath/Meshes/Orion_Proto_Retarget’
PackagingResults: Warning: [AssetLog] E:\Prog\Sur\Content\ParagonFey\Characters\Heroes\Fey\Meshes\Fey_Skeleton.uasset: Failed to load ‘/Game/ParagonFey/Characters/Heroes/Fey/Meshes/Orion_Proto_Retarget’: Can’t find file.
PackagingResults: Warning: [AssetLog] E:\Prog\Sur\Content\ParagonFey\Characters\Heroes\Fey\Meshes\Fey_Skeleton.uasset: VerifyImport: Failed to load package for import object ‘Package /Game/ParagonFey/Characters/Heroes/Fey/Meshes/Orion_Proto_Retarget’
PackagingResults: Warning: Saving FText “None” which has been initialized from FString at cook time resave of source package /Game/SurvivorsTemplate/Blueprints/Structs/ST_AvailableMaps may fix issue.
PackagingResults: Warning: [AssetLog] E:\Prog\Sur\Content\UndeadPack\SkeletonEnemy\Mesh\SK_Skeleton_Skeleton.uasset: Failed to load ‘/Engine/EngineMeshes/Humanoid’: Can’t find file.
PackagingResults: Warning: [AssetLog] E:\Prog\Sur\Content\UndeadPack\SkeletonEnemy\Mesh\SK_Skeleton_Skeleton.uasset: VerifyImport: Failed to load package for import object ‘Package /Engine/EngineMeshes/Humanoid’

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Hello there @Kinsern!

Your provided logs include several file conflicts, mainly related to files related to Paragon package characters. Try to remove any related pacakge addons from your UE build, then open the project again.

Additionally, a similar scenario was encountered in the following thread, please check the steps taken here:

3

Hi, migrating the project to UE 5.5 helped me. Then, after compilation, the project started to run.