Hello. We have a multiplatform library that all of a sudden can’t find standard library classes, lik...

# multiplatform

[Justin Tullgren]

Hello. We have a multiplatform library that all of a sudden can’t find standard library classes, like kotlin.collections.ArrayDeque in the common source set. We are using org.jetbrains.kotlin.multiplatform:1.9.20 for the gradle plugin. Has anyone seen this before?

[peekandpoke]

Hi! From my experience this has something to do with incompatible stdlib version being pulled into the project.

[peekandpoke]

Check the dependencies `./gradlew :dependencies`` and see if you have multiple stdlib versions referenced.

[peekandpoke]

...

[peekandpoke]

And then just today I had this issue: https://kotlinlang.slack.com/archives/C3PQML5NU/p1741165318934069

[peekandpoke]

Long story short:

[peekandpoke]

I had mavenLocal() in the gradle repositories before the others and this messed everything up for me as well.

[peekandpoke]

...

[peekandpoke]

sometimes it might also help to delete ~/.gradle and ~/.m2 directories

[Justin Tullgren]

its happening in CI and different dev machines so its a dependency thing probably

[peekandpoke]

When it is happening on only a few but not all machines, that i might be that there are local artifacts interfering and being pulled into the build

[peekandpoke]

-> check for mavenLocal()

[Justin Tullgren]

no mavenLocal.

[peekandpoke]

is it happening for everyone?

[Justin Tullgren]

yes

[Justin Tullgren]

i’ll start with your dependencies check and get back to you. Thanks!

[peekandpoke]

I also remember having this with 1.9.20 somehow. I think the fix back then was to upgrade to 1.9.25

[Justin Tullgren]

i used the bom on the standard lib for 1.9.25 and that fixed it. going to go down to 1.9.20 and see if it fails again

[Justin Tullgren]

yes 1.9.20 failed it

[Justin Tullgren]

thanks!