Update Gradle in Flutter project - flutter

Question

I have this project in Flutter, but I haven't been able to build an apk for a couple of weeks, because of the Gradle version. I've tried everything, but Flutter always returns the error below:
I already install every update I found, even though, it shows that the Gradle version is 4.10.2.
flutter build apk
...
FAILURE: Build failed with an exception.
* Where:
Build file 'C:\Users\israel.gomes\AppData\Local\Pub\Cache\hosted\pub.dartlang.org\audioplayers-0.17.4\android\build.gradle' line: 25
* What went wrong:
A problem occurred evaluating root project 'audioplayers'.
> Failed to apply plugin [id 'kotlin-android']
> The current Gradle version 4.10.2 is not compatible with the Kotlin Gradle plugin. Please use Gradle 5.3 or newer, or the previous version of the Kotlin plugin.
* 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 1s
The plugin audioplayers could not be built due to the issue above.
Here some information about the project status and environment----------------------
Already changed gradle-wrapper.properties (Current file):
distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-6.6.1-all.zip
android/build.gradle(Current file):
buildscript {
ext.kotlin_version = '1.3.50'
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:4.0.1'
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
}
}
.
.
.
gradle --version
------------------------------------------------------------
Gradle 5.6.2
------------------------------------------------------------
Build time: 2019-09-05 16:13:54 UTC
Revision: 55a5e53d855db8fc7b0e494412fc624051a8e781
Kotlin: 1.3.41
Groovy: 2.5.4
Ant: Apache Ant(TM) version 1.9.14 compiled on March 12 2019
JVM: 1.8.0_261 (Oracle Corporation 25.261-b12)
OS: Windows 10 10.0 amd64
flutter doctor -v
[√] Flutter (Channel dev, 2.1.0-12.1.pre, on Microsoft Windows [versão 10.0.19042.867], locale pt-BR)
• Flutter version 2.1.0-12.1.pre at C:\Flutter
• Framework revision 8264cb3e8a (3 weeks ago), 2021-03-10 12:37:57 -0800
• Engine revision 711ab3fda0
• Dart version 2.13.0 (build 2.13.0-116.0.dev)
[√] Android toolchain - develop for Android devices (Android SDK version 30.0.2)
• Android SDK at C:\Users\israel.gomes\AppData\Local\Android\Sdk
• Platform android-30, build-tools 30.0.2
• ANDROID_HOME = C:\Users\israel.gomes\AppData\Local\Android\Sdk
• Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
• Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)
• All Android licenses accepted.
[√] Chrome - develop for the web
• Chrome at C:\Program Files (x86)\Google\Chrome\Application\chrome.exe
[√] Android Studio (version 4.0)
• Android Studio at C:\Program Files\Android\Android Studio
• Flutter plugin can be installed from:
https://plugins.jetbrains.com/plugin/9212-flutter
• Dart plugin can be installed from:
https://plugins.jetbrains.com/plugin/6351-dart
• Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)
[√] IntelliJ IDEA Community Edition (version 2020.3)
• IntelliJ at C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2020.2.3
• Flutter plugin version 55.0.4
• Dart plugin version 203.7759
[√] VS Code (version 1.54.3)
• VS Code at C:\Users\israel.gomes\AppData\Local\Programs\Microsoft VS Code
• Flutter extension version 3.20.0
[√] Connected device (3 available)
• Android SDK built for x86 (mobile) • emulator-5554 • android-x86 • Android 7.1.1 (API 25) (emulator)
• Chrome (web) • chrome • web-javascript • Google Chrome 89.0.4389.114
• Edge (web) • edge • web-javascript • Microsoft Edge 87.0.664.75
• No issues found!

Answer 1

Here is how I upgraded gradle in my older Flutter project:
Create a new temp project with the latest version of Flutter. You'll use this to see what version of gradle Flutter is using nowadays.
In the temp project open android/build.gradle check the classpath version of gradle being used and update that in your old Flutter project. For me today it looks like this:
classpath 'com.android.tools.build:gradle:4.1.0'
In the temp project open android/gradle/wrapper/gradle-wrapper.properties and check the distributionUrl. Update your old project to use the same one. For me today it looks like this:
distributionUrl=https\://services.gradle.org/distributions/gradle-6.7-all.zip
Rerun your app. It has to download the new version of gradle to the android/.gradle directory so the first time might take a while.

Answer 2

The easiest way (I do so as Android Dev):
Right click android folder in root folder
Flutter
Open in Android Studio
Wait for it to load completely
It'll ask you "Would you like to upgrade gradle?|"
Click Yes
flutter clean

Answer 3

android/gradle/wrapper/gradle-wrapper.properties:
distributionUrl=https\://services.gradle.org/distributions/gradle-7.0.2-all.zip
android/build.gradle:
classpath "com.android.tools.build:gradle:7.0.1"
in android/gradle.properties, add this:
org.gradle.java.home=C:\\Program Files\\Android\\Android Studio\\jre

Answer 4

It appears as if audioplayers has an incompatible gradle version with your project.
Try upgrading audioplayers to the newest version, although this may not fix the issue, as the last comment in this thread was less than 24 hours ago.
audioplayers: ^0.18.3

Answer 5

An update for 2022, Android Studio Dolphin. The other answers gave me a start, but are no longer up-to-date.
Open the main flutter project in Android Studio
Right click on the [android] module. Choose "Flutter". Choose Open Android module in Android Studio
I opened in a new window, but this probably isn't required.
As it says in the text here , choose on the menu (you must be in the "Android" project)
File
Project Structure
Project
Click the Android Gradle Plugin Version dropdown and choose the latest version (or whatever one you want to update to)
Click the Gradle Version dropdown and choose the latest version (or whatever one you want to update to)
Give time for your Gradle to sync (it might have to download quite a lot, so be patient)
Now you should be able to close the Android project window, and go back to the flutter project

Answer 6

Try renaming the android/ folder in your project. Then run flutter create . in the directory. This should recreate your android directory. Try your build again and see if it fixed your problem.

Answer 7

Upgrade gradle in a Flutter project.
Open the file gradle-wrapper.properties located at {yourProjectName}/android/gradle/wrapper/gradle-wrapper.properties and replace the distributionUrl by changing the gradle version.
For example if you want to upgrade gradle from version 5.1.1 to 6.1.1, change the Url from https\://services.gradle.org/distributions/gradle-5.1.1-all.zip to https\://services.gradle.org/distributions/gradle-6.1.1-all.zip and rebuild your app.

Answer 8

Fast way of doing it:
Open AndroidManifest.xml (andriod/app/src/main/AndroidManifest.xml)
Click "Open for Editing in Android Studio"

Answer 9

In late 2022, Android Studio can fix that and upgrade Gradle:
Open the main flutter project in Android Studio
Right click on the android module. Choose "Flutter". Choose Open Android module in Android Studio, I opened in a new window
Then, in the lower right corner, Android Studio presents a message suggesting to upgrade Gradle. Follow this suggestion!
After that, you can close the Android project window
Based on Nick Fortescue answer

Answer 10

I was getting this issue:
FAILURE: Build failed with an exception.
Where:
Build file '/home/marcelo-cesar/Desktop/Overseasconnection-player-teams/android/app/build.gradle' line: 47
What went wrong:
A problem occurred evaluating project ':app'.
Could not find method minSdkVersion() for arguments [19, null] on DefaultConfig$AgpDecorated_Decorated{name=main, dimension=null, minSdkVersion=null, targetSdkVersion=null, renderscriptTargetApi=null, renderscriptSupportModeEnabled=null, renderscriptSupportModeBlasEnabled=null, renderscriptNdkModeEnabled=null, versionCode=null, versionName=null, applicationId=com.ls.overseasagent, testApplicationId=null, testInstrumentationRunner=null, testInstrumentationRunnerArguments={}, testHandleProfiling=null, testFunctionalTest=null, signingConfig=null, resConfig=[], buildConfigFields={}, resValues={}, proguardFiles=[], consumerProguardFiles=[], manifestPlaceholders={applicationName=android.app.Application}, wearAppUnbundled=null} of type com.android.build.gradle.internal.dsl.DefaultConfig$AgpDecorated.
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 3s
Exception: Gradle task assembleDebug failed with exit code 1
Exited (sigterm)
I solved it by making these changes:
In android/build.gradle
update these lines with these following:
ext.kotlin_version = '1.7.10'
classpath 'com.android.tools.build:gradle:7.3.1'
In android/app/build.gradle
update with this value:
compileSdkVersion 33
defaultConfig {
…
minSdkVersion 21
targetSdkVersion 31
}
In android/gradle/wrapper/gradle-wrapper.properties
update distribution line with this:
distributionUrl=https://services.gradle.org/distributions/gradle-7.5-all.zip