多Flavor应用依赖多Flavor库模块时无法匹配变体的问题咨询

当库模块添加Flavor后，Gradle无法自动匹配名称不一致的应用Flavor与库Flavor，导致出现No matching variant of project :app:library was found错误。以下是两种可行的解决方法：

方法一：配置匹配回退（推荐） #

在应用模块的build.gradle中，为每个应用Flavor指定对应的库Flavor，通过matchingFallbacks告诉Gradle匹配规则：

flavorDimensions "version"
productFlavors {
    appFlavor1 {
        // 指定该应用Flavor对应库的libraryFlavor1
        matchingFallbacks = ['libraryFlavor1']
    }
    appFlavor2 {
        // 指定该应用Flavor对应库的libraryFlavor2
        matchingFallbacks = ['libraryFlavor2']
    }
    appFlavor3 {
        // 可设置优先级，优先匹配libraryFlavor1，失败则用libraryFlavor2
        matchingFallbacks = ['libraryFlavor1', 'libraryFlavor2']
    }
}

依赖部分保持原有配置即可：

implementation project(path: ':app:library')

方法二：变体感知依赖配置 #

针对不同的应用Flavor，直接指定对应的库变体（需区分Debug/Release构建类型）：

dependencies {
    // appFlavor1对应libraryFlavor1的Debug/Release变体
    appFlavor1Implementation project(path: ':app:library', configuration: 'libraryFlavor1Debug')
    appFlavor1ReleaseImplementation project(path: ':app:library', configuration: 'libraryFlavor1Release')
    
    // appFlavor2对应libraryFlavor2的Debug/Release变体
    appFlavor2Implementation project(path: ':app:library', configuration: 'libraryFlavor2Debug')
    appFlavor2ReleaseImplementation project(path: ':app:library', configuration: 'libraryFlavor2Release')
    
    // appFlavor3对应libraryFlavor1的Debug/Release变体
    appFlavor3Implementation project(path: ':app:library', configuration: 'libraryFlavor1Debug')
    appFlavor3ReleaseImplementation project(path: ':app:library', configuration: 'libraryFlavor1Release')
}

注意：确保应用与库模块的flavorDimensions名称一致（当前均为"version"，无需修改）。

内容的提问来源于stack exchange，提问作者tyczj