Hey! You can select the runtime on the service settings (If it's not on V2 yet) but as of 2024/06/04 the new runtime is enabled by default (you can read more about it here https://docs.railway.com/reference/runtime) which makes me think that you are having other type of issue, do you mind sharing your entire deploy logs? What are you trying to deploy?

Hey thanks for your help. Weirdly, I found the runtime setting. I have no idea how it just sort of appeared in front of me after a concerted search for it the other day - computers are hard I guess. It was still set to Legacy, so I moved it to V2, and the app redeployed without issues.

Glad it was solved! Closing this thread.