Could not create an instance of type com.android.build.api.variant.impl.LibraryVariantBuilderImpl.

[ddxl123]

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Launching lib\main.dart on sdk gphone64 x86 64 in debug mode...
Running Gradle task 'assembleDebug'...

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring project ':tencent_kit'.
> Could not create an instance of type com.android.build.api.variant.impl.LibraryVariantBuilderImpl.
   > Namespace not specified. Specify a namespace in the module's build file: C:\Users\LONG 4080ADOC\AppData\Local\Pub\Cache\hosted\pub.flutter-io.cn\tencent_kit-6.1.0\android\build.gradle. See https://d.android.com/r/tools/upgrade-assistant/set-namespace for information about setting the namespace.

     If you've specified the package attribute in the source AndroidManifest.xml, you can use the AGP Upgrade Assistant to migrate to the namespace value in the build file. Refer to https://d.android.com/r/tools/upgrade-assistant/agp-upgrade-assistant for general information about using the AGP Upgrade Assistant.

* 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 1s
Error: Gradle task assembleDebug failed with exit code 1

在C:\Users\LONG 4080ADOC\AppData\Local\Pub\Cache\hosted\pub.flutter-io.cn\tencent_kit-6.1.0\android的build.gradle中添加下面namespace才行

android {
    compileSdkVersion 31
    if (project.android.hasProperty("namespace")) {
        namespace 'io.github.v7lin.tencent_kit'
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
}

修复一下

[sinyu1012]

android 文件夹 根目录下的 build.gradle 添加以下代码：

subprojects {
    project.evaluationDependsOn(":app")
    if (project.name == "tencent_kit") {
        apply plugin: 'com.android.library'
        project.android.namespace = 'io.github.v7lin.tencent_kit'
    }
}

或者等我的 PR 合进来：https://github.com/RxReader/tencent_kit/pull/119