Compose Multiplatform: java.lang.IllegalStateException: Could not load font in multi-module project

Question

I’m working on a multi-module Compose Multiplatform (CMP) project and created a new CMP library module using libs.plugins.multiplatform.library.

However, when I added font resources and tried to use them, I encountered this error at runtime:

java.lang.IllegalStateException: Could not load font
Caused by: java.lang.IllegalStateException: Unable to load font

What I Tried and Expected Results

I checked if the font files were correctly added to the resources folder. ✅
I confirmed that my build.gradle.kts were correctly set up. ✅

Expected Behavior: Fonts should load properly without any runtime exceptions.
Actual Behavior: The app crashes due to IllegalStateException.

Solution That Worked for Me

The issue was resolved by removing libs.plugins.multiplatform.library and using libs.plugins.android.library instead.

Fixed Module-Level `build.gradle.kts`

plugins {
    alias(libs.plugins.compose)
    alias(libs.plugins.multiplatform)
    alias(libs.plugins.compose.compiler)
    alias(libs.plugins.android.library) // ✅ Fix: Use android.library instead
}

Fixed Project-Level `build.gradle.kts`

plugins {
    alias(libs.plugins.multiplatform) apply false
    alias(libs.plugins.multiplatform.library) apply false
    alias(libs.plugins.compose.compiler) apply false
    alias(libs.plugins.compose) apply false
    alias(libs.plugins.android.application) apply false
    alias(libs.plugins.android.library) apply false // ✅ Added
}

Version Catalog `libs.versions.toml`

[plugins]
android-library = { id = "com.android.library", version.ref = "agp" }  # ✅ Added

Is it possible to share the folder structure of your project? if your module has a commonMain you should put your fonts inside composeResources — Shad Adman
– Shad Adman, Commented Mar 21 at 10:45

hdk loh · Accepted Answer · 2025-04-27 12:29:56Z

1

If we kept resources under separate module & tried to access from different module, above runtime error we are getting; this is because main module can't actually able to access the resources from other modules.

I was also facing the same issue in compose version 1.7.3. It is fixed in 1.8.0-rc1

edited Apr 27 at 12:29

answered Apr 27 at 12:16

hdk loh

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Collectives™ on Stack Overflow

Compose Multiplatform: java.lang.IllegalStateException: Could not load font in multi-module project

What I Tried and Expected Results

Solution That Worked for Me

Fixed Module-Level `build.gradle.kts`

Fixed Project-Level `build.gradle.kts`

Version Catalog `libs.versions.toml`

1 Answer 1

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What I Tried and Expected Results

Solution That Worked for Me

Fixed Module-Level build.gradle.kts

Fixed Project-Level build.gradle.kts

Version Catalog libs.versions.toml

1 Answer 1

Comments

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Fixed Module-Level `build.gradle.kts`

Fixed Project-Level `build.gradle.kts`

Version Catalog `libs.versions.toml`