Error when include image_picker inside project (Flutter)

Question

Why is this error keep coming when i'm executing my project? It occur once i put the image_picker in my pubspec.

FAILURE: Build failed with an exception. * What went wrong: Execution failed for task ':app:processDebugResources'. Android resource linking failed Output: /Users/s/Desktop/Flutter/a/build/app/intermediates/incremental/mergeDebugResources/merged.dir/values/values.xml:331: error: resource android:attr/fontVariationSettings not found. /Users/s/Desktop/Flutter/a/build/app/intermediates/incremental/mergeDebugResources/merged.dir/values/values.xml:331: error: resource android:attr/ttcIndex not found. error: failed linking references. Command: /Users/s/.gradle/caches/transforms-1/files-1.1/aapt2-3.2.1-4818971-osx.jar/6d65e55edb223325e7c5119d99552582/aapt2-3.2.1-4818971-osx/aapt2 link -I\ /Users/s/Library/Android/sdk/platforms/android-27/android.jar\ --manifest\ /Users/s/Desktop/Flutter/a/build/app/intermediates/merged_manifests/debug/processDebugManifest/merged/AndroidManifest.xml\ -o\ /Users/s/Desktop/Flutter/a/build/app/intermediates/processed_res/debug/processDebugResources/out/resources-debug.ap_\ -R\ @/Users/s/Desktop/Flutter/a/build/app/intermediates/incremental/processDebugResources/resources-list-for-resources-debug.ap_.txt\ --auto-add-overlay\ --java\ /Users/s/Desktop/Flutter/a/build/app/generated/not_namespaced_r_class_sources/debug/processDebugResources/r\ --custom-package\ com.example.a\ -0\ apk\ --output-text-symbols\ /Users/s/Desktop/Flutter/a/build/app/intermediates/symbols/debug/R.txt\ --no-version-vectors Daemon: AAPT2 aapt2-3.2.1-4818971-osx Daemon #0 Output: /Users/s/.gradle/caches/transforms-1/files-1.1/design-27.1.1.aar/fa938137e4d19d1dd06a6895b6e14886/res/values/values.xml:96:5-202: AAPT: error: resource android:attr/fontVariationSettings not found.

/Users/s/.gradle/caches/transforms-1/files-1.1/design-27.1.1.aar/fa938137e4d19d1dd06a6895b6e14886/res/values/values.xml:96:5-202: AAPT: error: resource android:attr/ttcIndex not found. error: failed linking references. Command: /Users/s/.gradle/caches/transforms-1/files-1.1/aapt2-3.2.1-4818971-osx.jar/6d65e55edb223325e7c5119d99552582/aapt2-3.2.1-4818971-osx/aapt2 link -I\ /Users/s/Library/Android/sdk/platforms/android-27/android.jar\ --manifest\ /Users/s/Desktop/Flutter/a/build/app/intermediates/merged_manifests/debug/processDebugManifest/merged/AndroidManifest.xml\ -o\ /Users/s/Desktop/Flutter/a/build/app/intermediates/processed_res/debug/processDebugResources/out/resources-debug.ap_\ -R\ @/Users/s/Desktop/Flutter/a/build/app/intermediates/incremental/processDebugResources/resources-list-for-resources-debug.ap_.txt\ --auto-add-overlay\ --java\ /Users/s/Desktop/Flutter/a/build/app/generated/not_namespaced_r_class_sources/debug/processDebugResources/r\ --custom-package\ com.example.a\ -0\ apk\ --output-text-symbols\ /Users/s/Desktop/Flutter/a/build/app/intermediates/symbols/debug/R.txt\ --no-version-vectors Daemon: AAPT2 aapt2-3.2.1-4818971-osx Daemon #0

To fix it try. https://stackoverflow.com/a/54460559/10269042 — anmol.majhail, Feb 01 '19 at 04:16
What is your compileSdkVersion (under android/app/build.gradle)? — Phuc Tran, Feb 01 '19 at 07:30

score 1 · Accepted Answer · answered Feb 01 '19 at 07:46

1

Change your compileSdkVersion to 28 (under android/app/build.gradle)

compileSdkVersion 28

Then run the command

flutter clean

Then run the project again.

answered Feb 01 '19 at 07:46

Phuc Tran

5,392
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score 0 · Answer 2 · answered Feb 05 '19 at 08:23

0

@PhucTran answer's is correct. Just want to add that i had to Invalidate Cache from Android Studio and Restart it.

File-> Invalidate Cahe and Restart

answered Feb 05 '19 at 08:23

score 0 · Answer 3 · answered Oct 03 '20 at 11:02

This error acquired if you upgrade the support libraries to 28.0.0 and your compileSdkVersion is not 28 also.

To fix it changes in file app\build.gradle

To fix it changes in file app\build.gradle compileSdkVersion and targetSdkVersion from current to latest(Now latest 29).

android {
    compileSdkVersion 29

...

defaultConfig {
    minSdkVersion 21
    targetSdkVersion 29
    multiDexEnabled true
    ...
}

Error when include image_picker inside project (Flutter)

3 Answers3

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