Androidx 模块，android :attr/ttcIndex & android:attr/fontVariationSettings not found

Question

我正在将所有支持/appcompat 库迁移到 androidx。 在所有更新之后，由于此错误，我无法构建我的项目

:app:processDebugManifest UP-TO-DATE
AGPBI: {"kind":"error","text":"error: resource android:attr/fontVariationSettings not found.","sources":[{"file":"/Users/xxx/.gradle/caches/transforms-1/files-1.1/appcompat-v7-27.1.1.aar/7cae290a69b05f5ffc25283e26a7eb4a/res/values/values.xml","position":{"startLine":250,"startColumn":4,"startOffset":27058,"endColumn":68,"endOffset":27122}}],"original":"","tool":"AAPT"}
AGPBI: {"kind":"error","text":"error: resource android:attr/ttcIndex not found.","sources":[{"file":"/Users/xxx/.gradle/caches/transforms-1/files-1.1/appcompat-v7-27.1.1.aar/7cae290a69b05f5ffc25283e26a7eb4a/res/values/values.xml","position":{"startLine":250,"startColumn":4,"startOffset":27058,"endColumn":68,"endOffset":27122}}],"original":"","tool":"AAPT"}
:app:processDebugResources

我尝试一一包含我的所有依赖项，以确定是哪一个导致了问题。只有删除 Room 库，我才能构建¯\_(ツ)_/¯

https://developer.android.com/topic/libraries/architecture/adding-components#room

这很奇怪，因为问题似乎来自样式资源，但房间只是一个数据库库。

有没有人有任何想法或解决方案可以在不破坏一切的情况下包含空间？

=================================

我的 session :

compileSdkVersion 27
buildToolsVersion 27.0.3

defaultConfig {
    minSdkVersion 16
    targetSdkVersion 27
}

dependencies {
    // ROOM
    implementation ('androidx.room:room-runtime:' + androidxRoomVersion)
    implementation ('androidx.room:room-rxjava2:' + androidxRoomVersion)
    implementation ('androidx.room:room-guava:' + androidxRoomVersion)
    kapt ('androidx.room:room-compiler:' + androidxRoomVersion)
}

使用:androidxRoomVersion = 2.0.0-alpha1

Answer 1

设置你的 compileSdkVersion 'android-P' 和 targetSdkVersion 28

编辑:现在 compileSdkVersion 28 也应该可以工作，这意味着您不再需要将其设置为 android-P