Jetpack Compose on Kotlin 1.5.0

android kotlin android-jetpack-compose

I've updated to Kotlin 1.5 last week, and after yesterday having seen the intention of Google to make Jetpack Compose the preferred option for designing UIs, I wanted to do some testing.

The issue is that having my project updated to Kotlin 1.5, when trying to build the project I get the following error:

This version (1.0.0-beta07) of the Compose Compiler requires Kotlin version 1.4.32 but you appear to be using Kotlin version 1.5.0 which is not known to be compatible.  Please fix your configuration (or `suppressKotlinVersionCompatibilityCheck` but don't say I didn't warn you!).

Is Kotlin 1.5 incompatible with Jetpack Compose? After googling the issue I found the 1.5.0-M2 release, which mentions Jetpack Compose, but not in an "incompatible" manner.

Do you have any answer to this? Should I use suppressKotlinVersionCompatibilityCheck? In that case, may I add it directly to android.kotlinOptions in the module's build.gradle file?

Thanks in advance.

Edit 1: I've found that I should add suppressKotlinVersionCompatibilityCheck as a builder arg:

android {
    ...
    kotlinOptions {
        ...
        freeCompilerArgs += [
            "-P",
"plugin:androidx.compose.compiler.plugins.kotlin:suppressKotlinVersionCompatibilityCheck=true"
        ]
        ...
    }
    ...
}

But it's still not compiling, I get this error from the compiler:

java.lang.NoClassDefFoundError: org/jetbrains/kotlin/ir/descriptors/WrappedSimpleFunctionDescriptor
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer.buildFunction(LiveLiteralTransformer.kt:842)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer.irLiveLiteralGetter(LiveLiteralTransformer.kt:933)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer.visitConst(LiveLiteralTransformer.kt:426)
    at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitConst(IrElementTransformerVoid.kt:138)
    at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitConst(IrElementTransformerVoid.kt:24)
    at org.jetbrains.kotlin.ir.expressions.impl.IrConstImpl.accept(IrConstImpl.kt:33)
    at org.jetbrains.kotlin.ir.expressions.IrExpression.transform(IrExpression.kt:33)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer$visitCall$1$3.invoke(LiveLiteralTransformer.kt:624)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer$visitCall$1$3.invoke(LiveLiteralTransformer.kt:158)
    at androidx.compose.compiler.plugins.kotlin.lower.DurableKeyVisitor.enter(DurableKeyVisitor.kt:96)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer.enter(LiveLiteralTransformer.kt:191)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer.access$enter(LiveLiteralTransformer.kt:158)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer$visitCall$1.invoke(LiveLiteralTransformer.kt:623)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer$visitCall$1.invoke(LiveLiteralTransformer.kt:158)
    at androidx.compose.compiler.plugins.kotlin.lower.DurableKeyVisitor.enter(DurableKeyVisitor.kt:96)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer.enter(LiveLiteralTransformer.kt:191)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer.visitCall(LiveLiteralTransformer.kt:612)
    at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitCall(IrElementTransformerVoid.kt:199)
    at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitCall(IrElementTransformerVoid.kt:24)
    at org.jetbrains.kotlin.ir.expressions.impl.IrCallImpl.accept(IrCallImpl.kt:47)
    at org.jetbrains.kotlin.ir.expressions.IrExpression.transform(IrExpression.kt:33)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer$visitCall$1$3.invoke(LiveLiteralTransformer.kt:624)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer$visitCall$1$3.invoke(LiveLiteralTransformer.kt:158)
    at androidx.compose.compiler.plugins.kotlin.lower.DurableKeyVisitor.enter(DurableKeyVisitor.kt:96)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer.enter(LiveLiteralTransformer.kt:191)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer.access$enter(LiveLiteralTransformer.kt:158)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer$visitCall$1.invoke(LiveLiteralTransformer.kt:623)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer$visitCall$1.invoke(LiveLiteralTransformer.kt:158)
    at androidx.compose.compiler.plugins.kotlin.lower.DurableKeyVisitor.enter(DurableKeyVisitor.kt:96)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer.enter(LiveLiteralTransformer.kt:191)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer.visitCall(LiveLiteralTransformer.kt:612)
    at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitCall(IrElementTransformerVoid.kt:199)
    at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitCall(IrElementTransformerVoid.kt:24)
    at org.jetbrains.kotlin.ir.expressions.impl.IrCallImpl.accept(IrCallImpl.kt:47)
    at org.jetbrains.kotlin.ir.expressions.IrExpression.transform(IrExpression.kt:33)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer$visitBranch$1.invoke(LiveLiteralTransformer.kt:738)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer$visitBranch$1.invoke(LiveLiteralTransformer.kt:158)
    at androidx.compose.compiler.plugins.kotlin.lower.DurableKeyVisitor.enter(DurableKeyVisitor.kt:96)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer.enter(LiveLiteralTransformer.kt:191)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer.visitBranch(LiveLiteralTransformer.kt:737)
    at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitBranch(IrElementTransformerVoid.kt:255)
    at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitBranch(IrElementTransformerVoid.kt:24)
    at org.jetbrains.kotlin.ir.expressions.impl.IrBranchImpl.transform(IrWhenImpl.kt:56)
    at org.jetbrains.kotlin.ir.expressions.IrWhen.transformChildren(IrWhen.kt:37)
    at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitExpression(IrElementTransformerVoid.kt:131)
    at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitWhen(IrElementTransformerVoid.kt:247)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer.access$visitWhen$s1031542550(LiveLiteralTransformer.kt:158)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer$visitWhen$1.invoke(LiveLiteralTransformer.kt:705)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer$visitWhen$1.invoke(LiveLiteralTransformer.kt:158)
    at androidx.compose.compiler.plugins.kotlin.lower.DurableKeyVisitor.siblings(DurableKeyVisitor.kt:117)
    at androidx.compose.compiler.plugins.kotlin.lower.DurableKeyVisitor$siblings$1.invoke(DurableKeyVisitor.kt:131)
    at androidx.compose.compiler.plugins.kotlin.lower.DurableKeyVisitor.enter(DurableKeyVisitor.kt:96)
    at androidx.compose.compiler.plugins.kotlin.lower.DurableKeyVisitor.siblings(DurableKeyVisitor.kt:131)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer.siblings(LiveLiteralTransformer.kt:192)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer.visitWhen(LiveLiteralTransformer.kt:704)
    at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitWhen(IrElementTransformerVoid.kt:248)
    at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitWhen(IrElementTransformerVoid.kt:24)
    at org.jetbrains.kotlin.ir.expressions.IrWhen.accept(IrWhen.kt:29)
    at org.jetbrains.kotlin.ir.expressions.IrExpression.transform(IrExpression.kt:33)
    at org.jetbrains.kotlin.ir.expressions.IrExpression.transform(IrExpression.kt:26)
    at org.jetbrains.kotlin.ir.expressions.IrBlockBody.transformChildren(IrBody.kt:62)
    at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitBody(IrElementTransformerVoid.kt:108)
    at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitBlockBody(IrElementTransformerVoid.kt:117)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer.access$visitBlockBody$s1031542550(LiveLiteralTransformer.kt:158)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer$visitBlockBody$1.invoke(LiveLiteralTransformer.kt:795)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer$visitBlockBody$1.invoke(LiveLiteralTransformer.kt:158)
    at androidx.compose.compiler.plugins.kotlin.lower.DurableKeyVisitor.siblings(DurableKeyVisitor.kt:117)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer.siblings(LiveLiteralTransformer.kt:193)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer.visitBlockBody(LiveLiteralTransformer.kt:794)
    at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitBlockBody(IrElementTransformerVoid.kt:118)
    at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitBlockBody(IrElementTransformerVoid.kt:24)
    at org.jetbrains.kotlin.ir.expressions.IrBlockBody.accept(IrBody.kt:54)
    at org.jetbrains.kotlin.ir.expressions.IrBody.transform(IrBody.kt:27)
    at org.jetbrains.kotlin.ir.declarations.IrFunction.transformChildren(IrFunction.kt:69)
    at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitDeclaration(IrElementTransformerVoid.kt:57)
    at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitFunction(IrElementTransformerVoid.kt:69)
    at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitSimpleFunction(IrElementTransformerVoid.kt:72)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer.access$visitSimpleFunction$s1031542550(LiveLiteralTransformer.kt:158)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer$visitSimpleFunction$1.invoke(LiveLiteralTransformer.kt:654)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer$visitSimpleFunction$1.invoke(LiveLiteralTransformer.kt:158)
    at androidx.compose.compiler.plugins.kotlin.lower.DurableKeyVisitor.enter(DurableKeyVisitor.kt:96)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer.enter(LiveLiteralTransformer.kt:191)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer.visitSimpleFunction(LiveLiteralTransformer.kt:654)
    at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitSimpleFunction(IrElementTransformerVoid.kt:73)
    at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitSimpleFunction(IrElementTransformerVoid.kt:24)
    at org.jetbrains.kotlin.ir.declarations.IrSimpleFunction.accept(IrSimpleFunction.kt:29)
    at org.jetbrains.kotlin.ir.IrElement$DefaultImpls.transform(IrElement.kt:32)
    at org.jetbrains.kotlin.ir.IrElementBase.transform(IrElementBase.kt:19)
    at org.jetbrains.kotlin.ir.util.TransformKt.transformInPlace(transform.kt:35)
    at org.jetbrains.kotlin.ir.declarations.IrClass.transformChildren(IrClass.kt:67)
    at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitDeclaration(IrElementTransformerVoid.kt:57)
    at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitClass(IrElementTransformerVoid.kt:66)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer.access$visitClass$s1031542550(LiveLiteralTransformer.kt:158)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer$visitClass$1.invoke(LiveLiteralTransformer.kt:450)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer$visitClass$1.invoke(LiveLiteralTransformer.kt:158)
    at androidx.compose.compiler.plugins.kotlin.lower.DurableKeyVisitor.siblings(DurableKeyVisitor.kt:117)
    at androidx.compose.compiler.plugins.kotlin.lower.DurableKeyVisitor$siblings$1.invoke(DurableKeyVisitor.kt:131)
    at androidx.compose.compiler.plugins.kotlin.lower.DurableKeyVisitor.enter(DurableKeyVisitor.kt:96)
    at androidx.compose.compiler.plugins.kotlin.lower.DurableKeyVisitor.siblings(DurableKeyVisitor.kt:131)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer.siblings(LiveLiteralTransformer.kt:192)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer.visitClass(LiveLiteralTransformer.kt:449)
    at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitClass(IrElementTransformerVoid.kt:67)
    at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitClass(IrElementTransformerVoid.kt:24)
    at org.jetbrains.kotlin.ir.declarations.IrClass.accept(IrClass.kt:56)
    at org.jetbrains.kotlin.ir.IrElement$DefaultImpls.transform(IrElement.kt:32)
    at org.jetbrains.kotlin.ir.IrElementBase.transform(IrElementBase.kt:19)
    at org.jetbrains.kotlin.ir.declarations.impl.IrFileImpl.transformChildren(IrFileImpl.kt:71)
    at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitPackageFragment(IrElementTransformerVoid.kt:41)
    at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitFile(IrElementTransformerVoid.kt:47)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer.access$visitFile$s1031542550(LiveLiteralTransformer.kt:158)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer$visitFile$1.invoke(LiveLiteralTransformer.kt:496)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer$visitFile$1.invoke(LiveLiteralTransformer.kt:158)
    at androidx.compose.compiler.plugins.kotlin.lower.DurableKeyVisitor.siblings(DurableKeyVisitor.kt:117)
    at androidx.compose.compiler.plugins.kotlin.lower.DurableKeyVisitor.root(DurableKeyVisitor.kt:152)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer.visitFile(LiveLiteralTransformer.kt:463)
    at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitFile(IrElementTransformerVoid.kt:48)
    at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitFile(IrElementTransformerVoid.kt:24)
    at org.jetbrains.kotlin.ir.declarations.impl.IrFileImpl.accept(IrFileImpl.kt:63)
    at org.jetbrains.kotlin.ir.declarations.IrFile.transform(IrFile.kt:48)
    at org.jetbrains.kotlin.ir.declarations.impl.IrModuleFragmentImpl.transformChildren(IrModuleFragmentImpl.kt:45)
    at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoidKt.transformChildrenVoid(IrElementTransformerVoid.kt:330)
    at androidx.compose.compiler.plugins.kotlin.lower.LiveLiteralTransformer.lower(LiveLiteralTransformer.kt:169)
    at androidx.compose.compiler.plugins.kotlin.ComposeIrGenerationExtension.generate(ComposeIrGenerationExtension.kt:80)
    at org.jetbrains.kotlin.backend.jvm.JvmIrCodegenFactory$convertToIr$1.invoke(JvmIrCodegenFactory.kt:120)
    at org.jetbrains.kotlin.backend.jvm.JvmIrCodegenFactory$convertToIr$1.invoke(JvmIrCodegenFactory.kt:116)
    at org.jetbrains.kotlin.psi2ir.Psi2IrTranslator.generateModuleFragment(Psi2IrTranslator.kt:91)
    at org.jetbrains.kotlin.backend.jvm.JvmIrCodegenFactory.convertToIr(JvmIrCodegenFactory.kt:140)
    at org.jetbrains.kotlin.backend.jvm.JvmIrCodegenFactory.convertToIr$default(JvmIrCodegenFactory.kt:66)
    at org.jetbrains.kotlin.backend.jvm.JvmIrCodegenFactory.generateModule(JvmIrCodegenFactory.kt:61)
    at org.jetbrains.kotlin.codegen.KotlinCodegenFacade.compileCorrectFiles(KotlinCodegenFacade.java:35)
    at org.jetbrains.kotlin.cli.jvm.compiler.KotlinToJVMBytecodeCompiler.generate(KotlinToJVMBytecodeCompiler.kt:592)
    at org.jetbrains.kotlin.cli.jvm.compiler.KotlinToJVMBytecodeCompiler.compileModules$cli(KotlinToJVMBytecodeCompiler.kt:212)
    at org.jetbrains.kotlin.cli.jvm.compiler.KotlinToJVMBytecodeCompiler.compileModules$cli$default(KotlinToJVMBytecodeCompiler.kt:155)
    at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler.doExecute(K2JVMCompiler.kt:169)
    at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler.doExecute(K2JVMCompiler.kt:52)
    at org.jetbrains.kotlin.cli.common.CLICompiler.execImpl(CLICompiler.kt:88)
    at org.jetbrains.kotlin.cli.common.CLICompiler.execImpl(CLICompiler.kt:44)
    at org.jetbrains.kotlin.cli.common.CLITool.exec(CLITool.kt:98)
    at org.jetbrains.kotlin.incremental.IncrementalJvmCompilerRunner.runCompiler(IncrementalJvmCompilerRunner.kt:386)
    at org.jetbrains.kotlin.incremental.IncrementalJvmCompilerRunner.runCompiler(IncrementalJvmCompilerRunner.kt:110)
    at org.jetbrains.kotlin.incremental.IncrementalCompilerRunner.compileIncrementally(IncrementalCompilerRunner.kt:303)
    at org.jetbrains.kotlin.incremental.IncrementalCompilerRunner.compileImpl$rebuild(IncrementalCompilerRunner.kt:99)
    at org.jetbrains.kotlin.incremental.IncrementalCompilerRunner.compileImpl(IncrementalCompilerRunner.kt:124)
    at org.jetbrains.kotlin.incremental.IncrementalCompilerRunner.compile(IncrementalCompilerRunner.kt:74)
    at org.jetbrains.kotlin.daemon.CompileServiceImplBase.execIncrementalCompiler(CompileServiceImpl.kt:607)
    at org.jetbrains.kotlin.daemon.CompileServiceImplBase.access$execIncrementalCompiler(CompileServiceImpl.kt:96)
    at org.jetbrains.kotlin.daemon.CompileServiceImpl.compile(CompileServiceImpl.kt:1659)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at java.rmi/sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:359)
    at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:200)
    at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:197)
    at java.base/java.security.AccessController.doPrivileged(Native Method)
    at java.rmi/sun.rmi.transport.Transport.serviceCall(Transport.java:196)
    at java.rmi/sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:562)
    at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:796)
    at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:677)
    at java.base/java.security.AccessController.doPrivileged(Native Method)
    at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:676)
    at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
    at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
    at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.lang.ClassNotFoundException: org.jetbrains.kotlin.ir.descriptors.WrappedSimpleFunctionDescriptor
    at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:471)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:589)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
    ... 164 more

Solution 1:

Update: androidx.compose.compiler:compiler:1.0.0-beta08 is released (June 2, 2021).

From this version, the expected version of Kotlin is 1.5.10.

dependencies {
    implementation "androidx.compose.compiler:compiler:1.0.0-beta08"
}

android {
    buildFeatures {
        compose true
    }

    composeOptions {
        kotlinCompilerVersion "1.5.10"
        kotlinCompilerExtensionVersion "1.0.0-beta08"
    }

    kotlinOptions {
        jvmTarget = "1.8"
    }
}

See more:

  • Compose
  • Compose Compiler

Compose compiler 1.0.0-beta07 is not supporting Kotlin 1.5.0 yet.

And I found that the changes of supporting Kotlin 1.5.0 have merged, but not released yet.

https://android-review.googlesource.com/c/platform/frameworks/support/+/1651538

For this moment, in my opinion, you should use 1.4.3 and wait for the next version (1.0.0:beta08 or 1.0.0)

Solution 2:

This is what I did with latest compose version as until I write today.

compose_version = '1.2.0-alpha01'

1) Delete following line if exists you do not need it: enter image description here

2) Update your Kotlin version with final version if needed how to do this -> click this link

3) Finally in build.gradle (:project) update compose version:

ext {
    compose_version = '1.2.0-alpha01'
}

And gradle plugin:

classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.6.10"

Now you should not have any warnings with latest version.

Solution 3:

  • In the build.gradle file (project):

    Change classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.5.0"

    To classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.5.21"

  • In the build.gradle file (app):

    composeOptions {
            kotlinCompilerExtensionVersion compose_version
            kotlinCompilerVersion kotlin_version
        }

    compose_version will be 1.0.1

    kotlin_version will be 1.5.21

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