Migrate to Jetpack compose error: Unbound symbols not allowed

Question

I wanted to migrate my existing project to partially use Jetpack compose for it.
So I opened it using Android studio 4.2-canary9 and added

Answer 1

I had a similar problem when I was migrating a template project. What fixed it for me was deleting some template code that accessed elements that were grabbed by findbyviewid.

Answer 2

Apparently, this issue has been fixed and will be shipped to Kotlin:1.4.20 (Which is not released at the time)

Google issue tracker reference

Kotlin Pull request

[Update at 27 Nov]

Updating to 1.4.20 leads to another error [Ref]

Answer 3

I had the same problem. As a workaround, I replaced all Kotlin synthetic with ViewBinding. After I did it everything worked.