Build failure with Unreal Engine 4.27.0 and Visual Studio 2019: The filename, directory name, or volume label syntax is incorrect.

Output of the ue4-docker info command:

ue4-docker version:         0.0.92 (latest available version is 0.0.92)
Operating system:           Windows Server 2022 Datacenter (Build 20348.288)
Docker daemon version:      dev
NVIDIA Docker supported:    No
Maximum image size:         800GB
Available disk space:       1.1 TiB
Total system memory:        31.65 GiB physical, 36.65 GiB virtual
Number of processors:       4 physical, 8 logical

Additional details:

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

Docker version

Docker version 20.10.7, build 40ef3b6

Build dockerd.exe locally to get around 20gig copy bug, link to the reference

Docker version dev, build 1430d849a4

Description

Trying to build the UE4 4.27.0 with Visual Studio 2019 and running into build failure with error

re-exec error: exit status 1: output: open \\?\C:\ProgramData\docker\tmp\hcs2047284100\Files\BuildTools\Common7\IDE\CommonExtensions\Microsoft\TextMate\Starterkit\Extensions\cmake\Snippets\File(Glob …).tmSnippet: The filename, directory name, or volume label syntax is incorrect.
[ue4-docker build] Error: failed to build image "adamrehn/ue4-build-prerequisites:ltsc2022-vs2019".

Here are the steps I have followed in setting the environment.

• choco install python --version=3.7.0
• pip install ue4-docker
• ue4-docker setup
• ue4-docker diagnostics all

Fixed the 20GiB error by manually building dockerd.exe For reference

C:/>dockerd-dev.exe --version
Docker version dev, build 1430d849a4

So for the entire ue4-docker build process now I am using the dockerd-dev.exe.

After all of these, I finally ran the UE4 build command

C:\>ue4-docker build 4.27.0 --verbose --visual-studio 2019 --exclude debug --exclude templates --exclude ddc

which fails with the above-mentioned error.

Verbose build output of the ue4-docker build: build_output_ue4_4270_vs_2019 Verbose output of the dockerd-dev.exe while the build was in process: dockerd_logs

Any help is appreciated.

[viralsavaniIM]

@TBBle @slonopotamus Was able to build it successfully with the official Docker build. For some reason when I was trying this earlier it didn’t work. That’s why I went down the spiral of diagnostics and custom docker daemon. Thanks for the feedback.

[slonopotamus]

I would first suggest reverting to official Docker build and checking whether error persists or not. Given that you use --exclude debug, you won’t hit 20GB COPY bug.