To open this project you must first install NullSourceCodeAccessor. Would you like to install it now?

Output of the ue4-docker info command:

ue4-docker version:         0.0.81 (latest available version is 0.0.82)
Operating system:           Linux (Ubuntu 18.04.5 LTS, 4.15.0-141-generic)
Docker daemon version:      20.10.6
NVIDIA Docker supported:    Yes
Maximum image size:         No limit detected
Available disk space:       247.17 GiB
Total system memory:        31.27 GiB physical, 2 GiB virtual
Number of processors:       16 physical, 32 logical

(irrelevant)

Additional details: ue4.25.4-opengl10.2

• Are you accessing the network through a proxy server? No

I’m trying to open a project with the editor but I get: To open this project you must first install NullSourceCodeAccessor. Would you like to install it now?

I understand there are some codeaccessor plugins but what is the solution with ue4-docker ? Thanks

[GuardedAirplane]

That’s fair. Looking at the AirSim documentation, it’s a common thing for people to have UE4 convert that environment prior to use. I’ll do some more digging and see if I can add to their documentation or merge a fix.

[slonopotamus]

There’s one more reason why we want EngineAssociation:

Attempt to run InspectCode inside ue4-docker image results in

Warning: C:\ProgramData\Epic\UnrealEngineLauncher\LauncherInstalled.dat doesn't exist
Warning: Failed to find Unreal Engine for C:\builds\MyProject.uproject with EngineAssociation=my_engine_association!

Now the question is: how we figure out what string to use for engine association.