Microsoft dotnet (.net core) on the environments
Open 💬 6 comments Opened Jun 8, 2025 by yetanotherchris
Could anyone explain why Microsoft .NET (née dotnet core) isn't included in the list of frameworks for an environment in Codex?
It's been cross-platform for almost 10 years now and is fairly straight forward to install on Ubuntu:
wget https://packages.microsoft.com/config/ubuntu/22.04/packages-microsoft-prod.deb -O packages-microsoft-prod.deb
sudo dpkg -i packages-microsoft-prod.deb
rm packages-microsoft-prod.deb
sudo apt-get update
sudo apt-get install -y dotnet-sdk-9.0
6 Comments
Agree it's a must have!
Check out this issue from the Codex base image repo https://github.com/openai/codex-universal/issues/13 as well.
Important to note that the command you provided only installs the .NET 9.0.1xx SDK and can not be used to install 9.0.2xx, 9.03.xx or 9.0.4xx (when it's released) SDKs. To install the mentioned SDK you would need to use the install scripts instead https://learn.microsoft.com/en-us/dotnet/core/install/linux-scripted-manual
We need this so bad!
And check this one https://github.com/openai/codex-universal/issues/13
Any updates on this?
I was able to get codex to set up the .net environment set up once or twice. Need to try to recreate and turn into a skill or something. So annoying.
This is why my company decided not to adopt codex btw.
@h5kk just add like "install dotnet 10 sdk first" in ech prombt and all will be fine.
@etraut-openai