最近在编译`Flutter`项目的时候，报错如下：
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':app:processDebugResources'.
> Android resource linking failed
Output: /Users/xxxx/Source/developer_quest/build/app/intermediates/incremental/mergeDebugResources/merged.dir/values/values.xml:86: error: resource android:attr/fontVariationSettings not found.
/Users/xxxx/Source/developer_quest/build/app/intermediates/incremental/mergeDebugResources/merged.dir/values/values.xml:87: error: resource android:attr/ttcIndex not found.
error: failed linking references.
Command: /Users/xxxx/.gradle/caches/transforms-1/files-1.1/aapt2-3.2.1-4818971-osx.jar/ace5a2b7765511437e6add51febae423/aapt2-3.2.1-4818971-osx/aapt2 link -I\
/Users/xxxx/Library/Android/sdk/platforms/android-27/android.jar\
--manifest\
/Users/xxxx/Source/developer_quest/build/app/intermediates/merged_manifests/debug/processDebugManifest/merged/AndroidManifest.xml\
-o\
/Users/xxxx/Source/developer_quest/build/app/intermediates/processed_res/debug/processDebugResources/out/resources-debug.ap_\
-R\
@/Users/xxxx/Source/developer_quest/build/app/intermediates/incremental/processDebugResources/resources-list-for-resources-debug.ap_.txt\
--auto-add-overlay\
--java\
/Users/xxxx/Source/developer_quest/build/app/generated/not_namespaced_r_class_sources/debug/processDebugResources/r\
--custom-package\
dev.flutter.devrpg\
-0\
apk\
--output-text-symbols\
/Users/xxxx/Source/developer_quest/build/app/intermediates/symbols/debug/R.txt\
--no-version-vectors
Daemon: AAPT2 aapt2-3.2.1-4818971-osx Daemon #0
Output: /Users/xxxx/.gradle/caches/transforms-1/files-1.1/core-1.1.0.aar/becc1f5b1538f3fe61f1f959fb2bd672/res/values/values.xml:174:5-210:25: AAPT: error: resource android:attr/fontVariationSettings not found.
/Users/xxxx/.gradle/caches/transforms-1/files-1.1/core-1.1.0.aar/becc1f5b1538f3fe61f1f959fb2bd672/res/values/values.xml:174:5-210:25: AAPT: error: resource android:attr/ttcIndex not found.
error: failed linking references.
Command: /Users/xxxx/.gradle/caches/transforms-1/files-1.1/aapt2-3.2.1-4818971-osx.jar/ace5a2b7765511437e6add51febae423/aapt2-3.2.1-4818971-osx/aapt2 link -I\
/Users/xxxx/Library/Android/sdk/platforms/android-27/android.jar\
--manifest\
/Users/xxxx/Source/developer_quest/build/app/intermediates/merged_manifests/debug/processDebugManifest/merged/AndroidManifest.xml\
-o\
/Users/xxxx/Source/developer_quest/build/app/intermediates/processed_res/debug/processDebugResources/out/resources-debug.ap_\
-R\
@/Users/xxxx/Source/developer_quest/build/app/intermediates/incremental/processDebugResources/resources-list-for-resources-debug.ap_.txt\
--auto-add-overlay\
--java\
/Users/xxxx/Source/developer_quest/build/app/generated/not_namespaced_r_class_sources/debug/processDebugResources/r\
--custom-package\
dev.flutter.devrpg\
-0\
apk\
--output-text-symbols\
/Users/xxxx/Source/developer_quest/build/app/intermediates/symbols/debug/R.txt\
--no-version-vectors
Daemon: AAPT2 aapt2-3.2.1-4818971-osx Daemon #0
* 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 13s
Exception: Gradle task assembleDebug failed with exit code 1
解决方案：
try to change the compileSdkVersion above 27:
compileSdkVersion 28