使用 Flutter 执行任务 ':app:processReleaseResources' image_picker 失败

Question

我得到这个问题Execution failed for task：应用：processReleaseResources using image_picker widget with Flutter, I saw that image_picker is built with的minSdkVersion as 16 , and when that's changed, it fails, I am using 21 as的minSdkVersion , and compileSdkVersion & targetSdkVersion as 27, I have tried to change thetargetSdkVersionto16but I got some issues cuz I have some plugin dependencies with21`。

这是问题：

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:processReleaseResources'.
> Android resource linking failed
  Output:  C:\Users\joseph.arriaza\Desktop\proyects\tagueoflutter\build\app\intermediates\incremental\mergeReleaseResources\merged.dir\values\values.xml:137: error: resource android:attr/fontVariationSettings not found.
  C:\Users\joseph.arriaza\Desktop\proyects\tagueoflutter\build\app\intermediates\incremental\mergeReleaseResources\merged.dir\values\values.xml:137: error: resource android:attr/ttcIndex not found.
  error: failed linking references.

  Command: C:\Users\joseph.arriaza\.gradle\caches\transforms-1\files-1.1\aapt2-3.2.1-4818971-windows.jar\42d72a25de05c0a46e75cddecb240d5d\aapt2-3.2.1-4818971-windows\aapt2.exe link -I\
          C:\Users\joseph.arriaza\AppData\Local\Android\sdk\platforms\android-27\android.jar\
          --manifest\
          C:\Users\joseph.arriaza\Desktop\proyects\tagueoflutter\build\app\intermediates\merged_manifests\release\processReleaseManifest\merged\AndroidManifest.xml\
          -o\
          C:\Users\joseph.arriaza\Desktop\proyects\tagueoflutter\build\app\intermediates\processed_res\release\processReleaseResources\out\resources-release.ap_\
          -R\
          @C:\Users\joseph.arriaza\Desktop\proyects\tagueoflutter\build\app\intermediates\incremental\processReleaseResources\resources-list-for-resources-release.ap_.txt\
          --auto-add-overlay\
          --java\
          C:\Users\joseph.arriaza\Desktop\proyects\tagueoflutter\build\app\generated\not_namespaced_r_class_sources\release\processReleaseResources\r\
          --custom-package\
          com.archangelsystems.tagueo\
          -0\
          apk\
          --output-text-symbols\
          C:\Users\joseph.arriaza\Desktop\proyects\tagueoflutter\build\app\intermediates\symbols\release\R.txt\
          --no-version-vectors
  Daemon:  AAPT2 aapt2-3.2.1-4818971-windows Daemon #0
  Output:  C:\Users\joseph.arriaza\.gradle\caches\transforms-1\files-1.1\core-1.0.0.aar\4889927745807dec05ed4fe733f46abb\res\values\values.xml:89:5-125:25: AAPT: error: resource android:attr/fontVariationSettings not found.

  C:\Users\joseph.arriaza\.gradle\caches\transforms-1\files-1.1\core-1.0.0.aar\4889927745807dec05ed4fe733f46abb\res\values\values.xml:89:5-125:25: AAPT: error: resource android:attr/ttcIndex not found.

  error: failed linking references.
  Command: C:\Users\joseph.arriaza\.gradle\caches\transforms-1\files-1.1\aapt2-3.2.1-4818971-windows.jar\42d72a25de05c0a46e75cddecb240d5d\aapt2-3.2.1-4818971-windows\aapt2.exe link -I\
          C:\Users\joseph.arriaza\AppData\Local\Android\sdk\platforms\android-27\android.jar\
          --manifest\
          C:\Users\joseph.arriaza\Desktop\proyects\tagueoflutter\build\app\intermediates\merged_manifests\release\processReleaseManifest\merged\AndroidManifest.xml\
          -o\
          C:\Users\joseph.arriaza\Desktop\proyects\tagueoflutter\build\app\intermediates\processed_res\release\processReleaseResources\out\resources-release.ap_\
          -R\
          @C:\Users\joseph.arriaza\Desktop\proyects\tagueoflutter\build\app\intermediates\incremental\processReleaseResources\resources-list-for-resources-release.ap_.txt\
          --auto-add-overlay\
          --java\
          C:\Users\joseph.arriaza\Desktop\proyects\tagueoflutter\build\app\generated\not_namespaced_r_class_sources\release\processReleaseResources\r\
          --custom-package\
          com.archangelsystems.tagueo\
          -0\
          apk\
          --output-text-symbols\
          C:\Users\joseph.arriaza\Desktop\proyects\tagueoflutter\build\app\intermediates\symbols\release\R.txt\
          --no-version-vectors
  Daemon:  AAPT2 aapt2-3.2.1-4818971-windows 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 8s
Running Gradle task 'assembleRelease'...
Running Gradle task 'assembleRelease'... Done                       8.7s
Gradle task assembleRelease failed with exit code 1

Answer 1

这些资源（fontVariationSettings 和 ttcIndex）是在 API 28 中添加的，因此您需要将您的编译 SDK 版本更新到 28。