Flutter Android studio build failing

Question

My Android studio flutter project started giving cannot find symbol errors.

C:\Users\abc\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\firebase_messaging-2.2.0\android\src\main\java\io\flutter\plugins\firebasemessaging\FirebaseMe**ssagingPlugin.java:13: error: cannot find symbol
import androidx.annotation.NonNull;**
                          ^
  symbol:   class NonNull
  location: package androidx.annotation
C:\Users\abc\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\firebase_messaging-2.2.0\android\src\main\java\io\flutter\plugins\firebasemessaging\FirebaseMessagingPlugin.java:14: error: package androidx.localbroadcastmanager.content does not exist
import androidx.localbroadcastmanager.content.LocalBroadcastManager;
                                             ^
C:\Users\abc\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\firebase_messaging-2.2.0\android\src\main\java\io\flutter\plugins\firebasemessaging\FlutterFir**ebaseInstanceIDService.java:9: error: package androidx.localbroadcastmanager.content does not exist
import androidx.localbroadcastmanager.content.LocalBroadcastManager;**

Anyone has an idea what is wrong ?

As suggested by other users I tried to refactor to AndroidX but still getting error even though it is compileSdkVersion 28. I also tried to invalidate cache and restart the android studio.

Gradle.properties

Eric Kim · Accepted Answer · 2019-01-27 01:31:38Z

19

If you are using cloud_firestore: ^0.9.0 Change the following

pubspec.yaml

Add firebase_core: '^0.3.0' to dependencies

android/build.gradle

Add mavenLocal() to buildscripts.repositories and allprojects.repositories

Add classpath 'com.google.gms:google-services:4.2.0' to buildscript.dependencies

android/grandle.properties

Add android.useAndroidX=true and android.enableJetifier=true

android/app/build.gradle

change compileSdkVersion to 28

change dependencies to

testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test:runner:1.1.1'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'

Add apply plugin: 'com.google.gms.google-services' at the bottom

answered Jan 27, 2019 at 1:31

Eric Kim

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4 Comments

Sam Over a year ago

Thank you Eric kim. It resolved my issue. My app is running fine after doing all the steps you told. I also need to update few dependencies like firebase_auth, firebase_messaging etc. Everything is working fine now. However my eclipse is still showing me alert message to change my compileSdk to 28 (Even though it is) in order to refactor to AndroidX....

Eric Kim Over a year ago

@Sam I'm not really sure how to solve your issue. You might want to clear Android Studio cache or download a new version. Right now I am using VSCode with flutter plugin.

Ayush Malviya Over a year ago

@Sam Can you please tell which dependencies version especially for firebase_auth you used I am having the same issue. I have tried all this but still getting the same error.

Marek Over a year ago

@EricKim Thanks for detailed description. Running flutter clean after making these changed made it work.

AustinNaz · Accepted Answer · 2019-01-26 05:07:49Z

1

I had the same error, had to go into my app level android build.gradle file and change the compilesdkversion to 28, then in my gradle.properties file I added android.useAndroidX=true android.enableJetifier=true, I also went through my pubspec file and checked for any updates that had the breaking change to AndroidX and made sure to update those just for safety. Read more about AndroidX

answered Jan 26, 2019 at 5:07

AustinNaz

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1 Comment

Sam Over a year ago

Hi, I tried it but my Android studio still showing me error saying your compileSdkVersion should be at least 28 even though it is 28

Yash · Accepted Answer · 2019-01-26 06:24:15Z

1

You need to migrate your project to AndroidX. Please refer change logs for firebase_messaging here. To migrate your project refer this link.

answered Jan 26, 2019 at 6:24

Yash

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Comments

Daniel Gächter · Accepted Answer · 2019-01-26 16:36:54Z

1

Android made new licenses on 16.01.2019

Go to your terminal: flutter doctor --android-licenses

In Android Studio: Refactor -> Migrate to AndroidX

edited Jan 26, 2019 at 16:36

answered Jan 26, 2019 at 16:30

Daniel Gächter

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1 Comment

Sam Over a year ago

Hi, i changed the compileSdkVersion 28 and changed the gradle.properties. But when I try to Refactor -> Migrate to AndroidX it shows me error saying change compileSdkVersion to 28 even though it is at 28...

tausiq · Accepted Answer · 2019-03-12 03:49:53Z

1

In addition to @Eric Kim's answer, make sure you are using minimum supported android build tool version,

classpath 'com.android.tools.build:gradle:3.2.0'
classpath 'org.jetbrains.kotlin:kotlin-gradle-plugin:1.2.51'

Ideally you should use latest version, but the above version is minimum required as of now.

answered Mar 12, 2019 at 3:49

tausiq

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Comments

Stev Ogwal · Accepted Answer · 2019-01-30 01:40:09Z

0

In android/app/build.gradle you should change your compileSdkVersion to:

compileSdkVersion 28

edited Jan 30, 2019 at 1:40

user10316640

answered Jan 29, 2019 at 17:41

Stev Ogwal

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