Deployment fails on Railway due to .csproj not found in subfolder

novoldino

HOBBYOP

2 months ago

Hello Railway team,

I am trying to deploy my ASP.NET 8 Minimal API project to Railway, but the build fails with the following error:

failed to calculate checksum ... "/NovoldinoChatBot.csproj": not found

Repo structure:

NovoldinoChatbot/           <- root repository
    NovoldinoChatBot/       <- project folder
        Dockerfile
        NovoldinoChatBot.csproj
        Program.cs
    NovoldinoChatbot.sln
    railway.toml

Problem:

The Docker build context on Railway does not recognize .csproj inside the NovoldinoChatBot/ subfolder. As a result, the COPY command in my Dockerfile fails:

COPY ["NovoldinoChatBot/NovoldinoChatBot.csproj", "./"]

This prevents Railway from building the project.

Steps I have tried:

Using railway.toml with builder = "DOCKERFILE" and dockerfilePath = "NovoldinoChatBot/Dockerfile"
Using Metal Builder
Verified the .csproj exists in the repo and builds locally in Visual Studio

$10 Bounty

3 Replies

thaumanovic

PRO

2 months ago

Your log clearly indicates that it is not copying from your project folder. Are you sure you have committed your Dockerfile? (By which I mean, the version with the correct pathing)

thaumanovic

PRO

2 months ago

Also, can you run this command locally to see if it is reproducible on your machine?

docker build -f NovoldinoChatBot/Dockerfile .

novoldino

HOBBYOP

2 months ago

Hi thaumanovic,

Thanks a lot for your advice! Running the Docker build locally exactly as you suggested helped me understand the issue and got me unstuck. I really appreciate you taking the time to guide me - it made a big difference!