I am trying to import kotlin serialization via buildSrc gradle file but I cant get it working

Have you applied the plugin?

kotlin("plugin.serialization")

Runtime is in the modules gradle

Oops, I just re-read. Try changing that to

kotlinx-serialization

.

inside implementation or inside plugins

This might seem like a non issue but have you

applied

the plugin?

I solved with the solution which appears in that issue