No fabric?

[penetratorcwl]

Incompatible mods found!
net.fabricmc.loader.impl.FormattedException: Some of your mods are incompatible with the game or each other!
A potential solution has been determined, this may resolve your problem:
- Install fabric, any version.
More details:
- Mod 'Radiance' (radiance) 0.1.3-alpha requires any version of fabric, which is missing!
at net.fabricmc.loader.impl.FormattedException.ofLocalized(FormattedException.java:51)
at net.fabricmc.loader.impl.FabricLoaderImpl.load(FabricLoaderImpl.java:202)
at net.fabricmc.loader.impl.launch.knot.Knot.init(Knot.java:142)
at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:66)
at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23)

new install of fabric 1.21.4, no other mods, tested on minecraft launcher and modrinth launcher

[toxicmcde]

Same issue

[xeonise]

Same issue

install fabric api.
https://modrinth.com/mod/fabric-api/versions?g=1.21.4

[goog67]

vro

[goog67]

cant believe bro did not install fabric api