android - Android appCompat依赖项引发错误

Question

我是Android的新手。每次包含依赖项时，都会出现以下错误。我尝试了一些可能的解决方案，但似乎没有任何效果。

All com.android.support libraries must use the exact same version specification (mixing versions can lead to runtime crashes). Found versions 28.0.0, 27.0.2. Examples include com.android.support:animated-vector-drawable:28.0.0 and com.android.support:customtabs:27.0.2 less... (Ctrl+F1) Inspection info:There are some combinations of libraries, or tools and libraries, that are incompatible, or can lead to bugs. One such incompatibility is compiling with a version of the Android support libraries that is not the latest version (or in particular, a version lower than your targetSdkVersion). Issue id: GradleCompatible`

Answer 1

首先，假设您使用的是androidx之前的版本，请确保您所有com.android.support依赖项都共享完全相同的版本。这是要搜索的示例依赖项(列表当然并不完整):

com.android.support:appcompat-v7
com.android.support:support-annotations
com.android.support:design
com.android.support:cardview-v7
com.android.support:recyclerview-v7
com.android.support:gridlayout-v7
com.android.support:support-v4

其次，如果您所有的compat依赖项已经共享相同的版本，并且仅在添加其他已知依赖项时才出现问题:您可以排除其可传递的compat依赖项，例如(build.gradle):

implementation(...) {
    exclude module: 'appcompat-v7'
    exclude module: 'recyclerview-v7'
    exclude module: 'support-v4'
}

或像这样:

implementation(...) {
    exclude group: 'com.android.support'
}

第三，如果您不知道哪种依赖会引起麻烦，可以通过查看./gradlew app:dependencies生成的树来找到它