How to add mods to an existing save on a server?

[waterBear]

Per the title.

When I upload any mods into the mods folder, the server refuses to start until they're removed.

We're running on Azure using serverless deployment. Think something like Kubernetes except Microsoft manages the cluster and I don't. That means that when the Factorio docker container returns a non-zero exit code, the Azure service immediately kills the container and we don't get to see the logs.

I could mount a file share to the factorio/ directory, but then we'd essentially have the entire server living in a file share on Azure which is evil (and a huge PITA to update).

Point is, all I know is that the Factorio server returns 1.

Guessing the underlying issue is something simple if you know what you're doing. Any help appreciated.

[waterBear]

Problem solved. We were missing the mod dependencies. Just had to download those and shove em in the mods folder.