"Failed to save dependant map packages"

Blackbirdlore · February 4, 2023, 5:52am

This is the error I received trying to save for the first time in Unreal 5.1. I ran a blank game project. Blueprint on, Platform Desktop, Quality Maximum, starter content turned on, and raytracing turned off.

I added a few items, playing along with Unreal Sensei’s latest tutorial. When I went to save, I got the error in the title. as well as 6 Editor errors, which you can see at the bottom of the log (which I can’t upload because I’m too new, so I’ve copy-pasted below.

After ‘saving,’ trying to save again with the same name says "A file with that name already exists,’ even though it doesn’t. Another thing I noticed is when it names these things in the LogSavePackage, it’s attenuating the previous names. for example: “…/Maps/112_111_TestSave_PostProcessExample_save1_NewMap_HLOD0_Instancing.asset” 112 through NewMap are all names I’ve tried to use to save this new map, just to recreate the issue and try to figure it out myself.

[2023.02.03-20.03.01:472][580]LogFileHelpers: InternalPromptForCheckoutAndSave started...
[2023.02.03-20.03.01:473][580]LogSavePackage: Moving output files for package: /Game/StarterContent/Maps/112_111_TestSave_PostProcessExample_save1_NewMap_HLOD0_Instancing
[2023.02.03-20.03.01:473][580]LogSavePackage: Moving '../../../../../../Users/chcg2/OneDrive/Documents/Unreal Projects/StarterProject/Saved/112_111_TestSave_PostProcessExamFDBAC7E141E912146F7D57B395906A4A.tmp' to '../../../../../../Users/chcg2/OneDrive/Documents/Unreal Projects/StarterProject/Content/StarterContent/Maps/112_111_TestSave_PostProcessExample_save1_NewMap_HLOD0_Instancing.uasset'
[2023.02.03-20.03.01:475][580]LogSavePackage: Moving output files for package: /Game/__ExternalActors__/StarterContent/Maps/112/B/0Y/YT2HF4XFMLV4VUHM5L8TEP
[2023.02.03-20.03.01:475][580]LogSavePackage: Moving '../../../../../../Users/chcg2/OneDrive/Documents/Unreal Projects/StarterProject/Saved/YT2HF4XFMLV4VUHM5L8TEPB268AEF4460D9352035470B4AE9A4318.tmp' to '../../../../../../Users/chcg2/OneDrive/Documents/Unreal Projects/StarterProject/Content/__ExternalActors__/StarterContent/Maps/112/B/0Y/YT2HF4XFMLV4VUHM5L8TEP.uasset'
[2023.02.03-20.03.01:476][580]LogSavePackage: Moving output files for package: /Game/__ExternalObjects__/StarterContent/Maps/112/6/BU/O6PEMKX59Y8Q91R7V99W9M

... (list shortened for space)

[2023.02.03-20.03.02:476][580]LogSavePackage: Moving '../../../../../../Users/chcg2/OneDrive/Documents/Unreal Projects/StarterProject/Saved/M3445MT5UUSX42SN563ZZUB6A18ABE4868E6E5A926A9B7421D9EE7.tmp' to '../../../../../../Users/chcg2/OneDrive/Documents/Unreal Projects/StarterProject/Content/__ExternalActors__/StarterContent/Maps/112/1/K1/M3445MT5UUSX42SN563ZZU.uasset'
[2023.02.03-20.03.02:480][580]LogSavePackage: Moving output files for package: /Game/__ExternalActors__/StarterContent/Maps/112/7/YH/8G01X81XGE5AWH6JOOVPXP
[2023.02.03-20.03.02:518][580]LogSavePackage: Moving output files for package: /Game/__ExternalActors__/StarterContent/Maps/112/B/Q9/OKQPYIB4RSVE7SA1JRJ1CS
[2023.02.03-20.03.02:518][580]LogSavePackage: Moving '../../../../../../Users/chcg2/OneDrive/Documents/Unreal Projects/StarterProject/Saved/OKQPYIB4RSVE7SA1JRJ1CSF4ABC82A4735ADAB332C988AF2571CE7.tmp' to '../../../../../../Users/chcg2/OneDrive/Documents/Unreal Projects/StarterProject/Content/__ExternalActors__/StarterContent/Maps/112/B/Q9/OKQPYIB4RSVE7SA1JRJ1CS.uasset'
[2023.02.03-20.03.02:523][580]LogSavePackage: Moving output files for package: /Game/__ExternalActors__/StarterContent/Maps/112/D/3P/AVJLKMF7K48Z45PO2GJSWK
[2023.02.03-20.03.02:523][580]LogSavePackage: Moving '../../../../../../Users/chcg2/OneDrive/Documents/Unreal Projects/StarterProject/Saved/AVJLKMF7K48Z45PO2GJSWKD368A1A94A605A583C9CC4B3E9D6D8E1.tmp' to '../../../../../../Users/chcg2/OneDrive/Documents/Unreal Projects/StarterProject/Content/__ExternalActors__/StarterContent/Maps/112/D/3P/AVJLKMF7K48Z45PO2GJSWK.uasset'
[2023.02.03-20.03.02:528][580]LogSavePackage: Moving output files for package: /Game/__ExternalActors__/StarterContent/Maps/112/B/0D/V9SSPZ3SLFLCKPOSZLZE6H
[2023.02.03-20.03.02:528][580]LogSavePackage: Moving '../../../../../../Users/chcg2/OneDrive/Documents/Unreal Projects/StarterProject/Saved/V9SSPZ3SLFLCKPOSZLZE6HFEB016B34329E264F43B9CAF87CBE3CE.tmp' to '../../../../../../Users/chcg2/OneDrive/Documents/Unreal Projects/StarterProject/Content/__ExternalActors__/StarterContent/Maps/112/B/0D/V9SSPZ3SLFLCKPOSZLZE6H.uasset'
[2023.02.03-20.03.02:529][580]EditorErrors: New page: Save Output
[2023.02.03-20.03.02:529][580]EditorErrors: Error: Attempting to save bulkdata 85102017116BE8CCD57E4F8FBBDB3EA6 with an invalid payload to package '/Game/__ExternalActors__/StarterContent/Maps/112/6/GQ/MTVX6BPFXI59B7I0JKFSGM'. The package probably needs to be reverted/recreated to fix this.
[2023.02.03-20.03.02:529][580]EditorErrors: Error: Attempting to save bulkdata C8A3BA2163FBFBBE549434DD3F7D3DCD with an invalid payload to package '/Game/__ExternalActors__/StarterContent/Maps/112/6/GQ/MTVX6BPFXI59B7I0JKFSGM'. The package probably needs to be reverted/recreated to fix this.
[2023.02.03-20.03.02:529][580]EditorErrors: Error: Attempting to save bulkdata 79ADDAFF88C0EEFA9D6CCD4F73CE580D with an invalid payload to package '/Game/__ExternalActors__/StarterContent/Maps/112/6/GQ/MTVX6BPFXI59B7I0JKFSGM'. The package probably needs to be reverted/recreated to fix this.
[2023.02.03-20.03.02:529][580]EditorErrors: Error: Attempting to save bulkdata 2DB11DAC264848022D248567A3F8806D with an invalid payload to package '/Game/__ExternalActors__/StarterContent/Maps/112/4/EV/8WNQVBQA8DFMJ6YC83FFZS'. The package probably needs to be reverted/recreated to fix this.
[2023.02.03-20.03.02:529][580]EditorErrors: Error: Attempting to save bulkdata 607F8722126EB020A6D01A19E23A9042 with an invalid payload to package '/Game/__ExternalActors__/StarterContent/Maps/112/C/HI/7EWB2F7JVVSPFIKEMN96IG'. The package probably needs to be reverted/recreated to fix this.
[2023.02.03-20.03.02:529][580]EditorErrors: Error: Attempting to save bulkdata 5E20AF82E565D6B45D7699036434C78A with an invalid payload to package '/Game/__ExternalActors__/StarterContent/Maps/112/C/HI/7EWB2F7JVVSPFIKEMN96IG'. The package probably needs to be reverted/recreated to fix this.
[2023.02.03-20.03.02:582][580]Message dialog closed, result: Ok, title: Packages Failed To Save, text: The following assets failed to save correctly:
/Game/__ExternalActors__/StarterContent/Maps/112/6/GQ/MTVX6BPFXI59B7I0JKFSGM
/Game/__ExternalActors__/StarterContent/Maps/112/4/EV/8WNQVBQA8DFMJ6YC83FFZS
/Game/__ExternalActors__/StarterContent/Maps/112/C/HI/7EWB2F7JVVSPFIKEMN96IG
[2023.02.03-20.03.02:582][580]LogFileHelpers: InternalPromptForCheckoutAndSave took 1.11 sec (total: 1:07 min)
[2023.02.03-20.03.02:591][580]Message dialog closed, result: Ok, title: Unable to Check Out From Source Control!, text: The following assets could not be successfully checked out from source control:
/Game/StarterContent/Maps/112_111_TestSave_PostProcessExample_save1_NewMap_HLOD0_Instancing
/Game/__ExternalActors__/StarterContent/Maps/112/B/0Y/YT2HF4XFMLV4VUHM5L8TEP
... (list shortened for space)
/Game/__ExternalActors__/StarterContent/Maps/112/B/0D/V9SSPZ3SLFLCKPOSZLZE6H
[2023.02.03-20.03.11:225][580]LogSlate: Window 'Message' being destroyed
[2023.02.03-20.03.11:228][580]Message dialog closed, result: Ok, title: Message, text: Failed to save dependant map packages
[2023.02.03-20.03.11:260][580]LogFileHelpers: Saving map '112' took 9.911
[2023.02.03-20.03.11:285][580]AssetCheck: New page: Asset Save: 112_111_TestSave_PostProcessExample_save1_NewMap_HLOD0_Instancing
[2023.02.03-20.03.11:285][580]LogContentValidation: Display: Validating /Script/Engine.HLODLayer /Game/StarterContent/Maps/112_111_TestSave_PostProcessExample_save1_NewMap_HLOD0_Instancing.112_111_TestSave_PostProcessExample_save1_NewMap_HLOD0_Instancing
[2023.02.03-20.03.11:504][581]LogUObjectHash: Compacting FUObjectHashTables data took   0.56ms

EliasWick · February 4, 2023, 11:32am

It seems like Unreal Engine is having trouble moving some files to the final location after saving. The error message is referencing a number of external assets, which may be causing the issue.

Try the following steps to resolve the issue:

Make sure that the project folder has the necessary permissions to save files and assets.
Try to manually delete the “tmp” files in the “Saved” folder of your project, as they may be causing conflicts with the saving process.
If the issue persists, try creating a new project and see if the same problem occurs. This can help you determine if the issue is specific to this particular project or if it’s a general issue with Unreal Engine.
If the problem still persists, try restarting Unreal Engine and your computer.

VagrantProfile · February 27, 2023, 3:37pm

Seeing this with a project saved to OneDrive as well. As added info, I’m teaching from a school setting and our OneDrive accounts are managed by the school district.

Simmoteph · October 20, 2024, 7:23am

My issue was that I had moved the BuiltData.uasset files into a separate directory, which yielded all kinds of issues when I later tried out non-static lighting. The solution was to remove the files - they’re just lighting data anyway.

Hope this is helpful to someone