[Seeking help] :app:mergeLibDexDebug

[Y520-regret]

Problem description

I am new to Flutter. I want to run this source code on my Android phone, but there is a bug that I don't know how to solve. I tried running it on Google Chrome and it works fine. I don't know why Android encountered this error. I used Flutter Doctor and everything is working fine，Can someone help me solve it？

Log Info :

ERROR:C:\Users\admin\Desktop\fluffychat\fluffychat-control\build\record_android\intermediates\runtime_library_classes_jar\debug\classes.jar: D8: com.android.tools.r8.internal.YI0: Sealed classes are not supported as program classes

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:mergeLibDexDebug'.
> Could not resolve all files for configuration ':app:debugRuntimeClasspath'.
   > Failed to transform classes.jar (project :record_android) to match attributes {artifactType=android-dex, asm-transformed-variant=NONE, com.android.build.api.attributes.AgpVersionAttr=7.1.2, com.android.build.api.attributes.BuildTypeAttr=debug, com.android.build.gradle.internal.attributes.VariantAttr=debug, dexing-enable-desugaring=true, dexing-is-debuggable=true, dexing-min-sdk=21, org.gradle.category=library, org.gradle.jvm.environment=android, org.gradle.libraryelements=jar, org.gradle.usage=java-runtime, org.jetbrains.kotlin.platform.type=androidJvm}.
      > Execution failed for DexingWithClasspathTransform: C:\Users\admin\Desktop\fluffychat\fluffychat-control\build\record_android\intermediates\runtime_library_classes_jar\debug\classes.jar.
         > Error while dexing.

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 24s