Unable to write new index file (ERROR)

Question

When I try to stage this is what I get.

git
-c diff.mnemonicprefix=false -c core.quotepath=false --no-optional-locks add -f --
BuildingEscape 4.22/.vs/BuildingEscape/v16/ipch/AutoPCH/517964f177e906ae/OPENDOOR.ipch
BuildingEscape 4.22/.vs/BuildingEscape/v16/ipch/AutoPCH/463cc101d1c8d63d/OPENDOOR.ipch
BuildingEscape 4.22/.vs/BuildingEscape/v16/.suo
BuildingEscape 4.22/Source/BuildingEscape/OpenDoor.h
BuildingEscape 4.22/Content/NewLevel_BuiltData.uasset
BuildingEscape 4.22/Content/NewLevel.umap
fatal: Unable to write new index file
Completed with errors, see above.

Nic Brough -Adaptavist- · Answer

It looks like it can't write to the disk properly.  Check there is enough space and that you have permissions to read/write in there.

If that looks ok, you'll need to consult your operating system logs to see why the writes failed.