I'm having trouble starting the server with the newest version of Cargo Ships. The newest version it will startup with is 1.0.4, but that version crashes the server when trying to import blueprints.

53.514 Error ServerMultiplayerManager.cpp:84: MultiplayerManager failed: "The mod Cargo Ships (1.0.19) caused a non-recoverable error.
Please report this error to the mod author.
Error while running event cargo-ships::on_configuration_changed
Resource temporarily unavailable
stack traceback:
[C]: in function 'regenerate_entity'
cargo-ships/logic/mapgen.lua:12: in function 'oil_generation_migration'
cargo-ships/control.lua:523: in function 'init'
cargo-ships/control.lua:538: in function <cargo-ships/control.lua:537>"

I think that error message is actually your computer running out of RAM from loading too many mods. If you link me the save file I can try loading it on my machine.

Thanks! Here's the save

https://drive.google.com/file/d/1Th7NmbpWUafn3NOQUkyW6Dgq642zBnpl/view?usp=sharing

Yup, it loaded just fine for me on 2.0.57 (on a machine with 32GB of RAM). I know we've seen people with the same issue before, not sure if there's anything we can do on our end to prevent it.

Welp, I've been wondering if I should upgrade the ram in my server PC, guess this answers my question haha. Thank you!

If it's any help, here's a version of the save after loading it in 2.0.55 with cargo ships and all mods updated. (There was a migration in bob-inserters).

https://drive.google.com/file/d/1TOCskT4ZcFP3L0bwgV_8FFALZuOTukot/view?usp=sharing

That works for me! The server treated me as a new player which is interesting but doesn't matter. Still learning about working with servers, what does it mean that there was a migration in bob's inserters?

It means they changed the name of some entities, and everything in the world should still be there. In your case, there weren't affected inserters created in the world, so there wasn't any risk of data loss.