This morning after adding "Shallow Landfill Water fix" to my game, Cargo Ships started throwing the following errors on load:
Failed to load mods: cargo-ships/prototypes/ship_pump.lua:25: attempt to index field 'layers' (a nil value)
stack traceback:
cargo-ships/prototypes/ship_pump.lua:25: in main chunk
[C]: in function 'require'
cargo-ships/prototypes/entity.lua:4: in main chunk
[C]: in function 'require'
cargo-ships/data.lua:4: in main chunk
Disabling the other mod resolves the issue. Not sure if this problem exists in Cargo Ships or the Shallow Water Landfill mod, but making you both aware.