HiltkotlinIllegalStateException: Unsupported metadata version. Check that your Kotlin version is

Posted 2022-02-11 guangdeshishe

问题：

在kotlin+java混合项目中接入Hilt后编译时报错如下：

Execution failed for task ':app:kaptDebugKotlin'.
> A failure occurred while executing org.jetbrains.kotlin.gradle.internal.KaptWithoutKotlincTask$KaptExecutionWorkAction
   > java.lang.reflect.InvocationTargetException (no error message)

根据提示，执行Run with --info后得到跟Hilt有关报错信息如下：

Caused by: java.lang.IllegalStateException: Unsupported metadata version. Check that your Kotlin version is >= 1.0
	at dagger.internal.codegen.kotlin.KotlinMetadata.metadataOf(KotlinMetadata.java:218)
	at dagger.internal.codegen.kotlin.KotlinMetadata.from(KotlinMetadata.java:196)
	at dagger.internal.codegen.kotlin.KotlinMetadataFactory.create(KotlinMetadataFactory.java:56)

原因：

版本兼容问题

解决办法：

更新前用的Hilt版本是2.28-alpha将Hilt和插件版本都更新到最新版2.37问题就解决了

• 项目根目录build.gradle:

classpath 'com.google.dagger:hilt-android-gradle-plugin:2.37'

• 模块build.gradle

api 'com.google.dagger:hilt-android:2.37'
kapt 'com.google.dagger:hilt-android-compiler:2.37'