Execution failed for task ':app:checkDebugDuplicateClasses'.

[ritiknayan]

Duplicate class kotlin.collections.jdk8.CollectionsJDK8Kt found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.5.30 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.5.30) Duplicate class kotlin.internal.jdk8.JDK8PlatformImplementations found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.5.30 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.5.30) Duplicate class kotlin.random.jdk8.PlatformThreadLocalRandom found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.5.30 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.5.30) Duplicate class kotlin.streams.jdk8.StreamsKt found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.5.30 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.5.30) Duplicate class kotlin.streams.jdk8.StreamsKt$asSequence$$inlined$Sequence$1 found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.5.30 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.5.30) Duplicate class kotlin.streams.jdk8.StreamsKt$asSequence$$inlined$Sequence$2 found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.5.30 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.5.30) Duplicate class kotlin.streams.jdk8.StreamsKt$asSequence$$inlined$Sequence$3 found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.5.30 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.5.30) Duplicate class kotlin.streams.jdk8.StreamsKt$asSequence$$inlined$Sequence$4 found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.5.30 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.5.30) Duplicate class kotlin.text.jdk8.RegexExtensionsJDK8Kt found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.5.30 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.5.30) Duplicate class kotlin.time.jdk8.DurationConversionsJDK8Kt found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.5.30 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.5.30)

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[priyanshuverma-dev]

try to delete .gradle folder from:

C:\Users\<username>\.gradle

and run this in your project:

flutter clean

then try to run again

flutter run