Failed to load mods: ...escentIndustry__/prototypes/centrifuge-update-common.lua:37: attempt to index local 'centrigw2l' (a nil value)
stack traceback:
...escentIndustry__/prototypes/centrifuge-update-common.lua:37: in main chunk
[C]: in function 'require'
IridescentIndustry/data-updates.lua:148: in main chunk

Current Workaround: adding "--" to the start of lines 36 to 60 in centrifuge-update-common.lua

Fixed in version 0.7.7.

Unfortunatelly not:

Failed to load mods: ...escentIndustry__/prototypes/centrifuge-update-common.lua:44: attempt to index field '?' (a nil value)
stack traceback:
...escentIndustry__/prototypes/centrifuge-update-common.lua:44: in main chunk
[C]: in function 'require'
IridescentIndustry/data-updates.lua:148: in main chunk

Disabled all mods except:
Base 2.0.72
Elevated Rails 2.0.72
Quality 2.0.72
Space Age 2.0.72
Iridescent Industry 0.7.7
Tintable Centrifuges 0.1.1

Workaround: adding "--" to the start of lines 44 to 73 in centrifuge-update-common.lua

You don't need Tintable Centrifuges. This mod does its own tinting, which is probably where the conflict is coming from.

Hello, Tintable Centrifuges dev here. Without any mods installed to take advantage of it TC basically does nothing. (The cylinders become different shades of green during the uranium recipes, but it's subtle.) I made this mod for an overhaul I'm working on. So you can remove it and nothing will change.