flutter build gradle failed ':firebase_core:compileDebugJavaWithJavac' - flutter

Question

I reset my pc recently, So the path of my project have changed, I don't know if it has to anything with this error.
I tried changing minSdkversion, compile SDK version, upgraded and downgraded all the firebase plugins, but no luck.
Here is my Complete error log
Launching lib\main.dart on Android SDK built for x86 in debug mode...
C:\src\flutter\.pub-cache\hosted\pub.dartlang.org\firebase_core-
1.0.3\android\src\main\java\io\flutter\plugins\firebase\core\FlutterFirebaseCorePlugin.java:92:
error: cannot find symbol
() -> {
^
symbol: method metafactory(Lookup,String,MethodType,MethodType,MethodHandle,MethodType)
location: interface LambdaMetafactory
Fatal Error: Unable to find method metafactory
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':firebase_core:compileDebugJavaWithJavac'.
> Compilation failed; see the compiler error output for details.
* 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 32s
Here is my build.gradle file
def localProperties = new Properties()
def localPropertiesFile = rootProject.file('local.properties')
if (localPropertiesFile.exists()) {
localPropertiesFile.withReader('UTF-8') { reader ->
localProperties.load(reader)
}
}
def flutterRoot = localProperties.getProperty('flutter.sdk')
if (flutterRoot == null) {
throw new FileNotFoundException("Flutter SDK not found. Define location with flutter.sdk in the
local.properties file.")
}
def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
if (flutterVersionCode == null) {
flutterVersionCode = '1'
}
def flutterVersionName = localProperties.getProperty('flutter.versionName')
if (flutterVersionName == null) {
flutterVersionName = '1.0'
}
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
android {
compileSdkVersion 30
sourceSets {
main.java.srcDirs += 'src/main/kotlin'
}
lintOptions {
disable 'InvalidPackage'
}
defaultConfig {
// TODO: Specify your own unique Application ID
(https://developer.android.com/studio/build/application-id.html).
applicationId "com.orangesprout.wlyk"
buildToolsVersion = "28.0.3"
minSdkVersion 23
targetSdkVersion 30
versionCode flutterVersionCode.toInteger()
versionName flutterVersionName
multiDexEnabled true
}
buildTypes {
release {
// TODO: Add your own signing config for the release build.
// Signing with the debug keys for now, so `flutter run --release` works.
signingConfig signingConfigs.debug
}
}
}
flutter {
source '../..'
}
dependencies {
implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
implementation platform('com.google.firebase:firebase-bom:26.5.0')
implementation 'com.google.firebase:firebase-analytics'
}
apply plugin: 'com.google.gms.google-services'

Answer 1

From the error log it looks like theres a syntax error on line 92 at this location
C:\src\flutter\.pub-cache\hosted\pub.dartlang.org\firebase_core-1.0.3\android\src\main\java\io\flutter\plugins\firebase\core\FlutterFirebaseCorePlugin.java
So you could either go to that location and edit the file and fix the error or I would suggest you to
remove the
firebase_core: ^1.0.3
from your pubspec.yaml and also delete pubspec.lock then run
flutter packages get
and then re-add the
firebase_core: ^1.0.3
and then run
flutter packages get
so as to refetch the files related to this package