A problem occurred evaluating root project 'android'. >Failed to notify project evaluation listener

Question

Compile error of flutter code

Launching lib\main.dart on sdk gphone x86 in debug mode...

FAILURE: Build failed with an exception.

• Where: Build file 'A:\flutterclass\source codes\ecommerce app\complete_flutter_ecommerce\android\build.gradle' line: 42

• What went wrong: A problem occurred evaluating root project 'android'.

A problem occurred configuring project ':app'. Failed to notify project evaluation listener. > 'org.gradle.api.file.RegularFileProperty org.gradle.api.file.ProjectLayout.fileProperty(org.gradle.api.provider.Provider)'

• 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 2s Exception: Gradle task assembleDebug failed with exit code 1 Exited (sigterm)

1

Answer 1

My project sample codes.But I don't know what is the error

Androidmanifest.xml

    <manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.santosenoque.chatapp">

    <!-- The INTERNET permission is required for development. Specifically,
         flutter needs it to communicate with the running application
         to allow setting breakpoints, to provide hot reload, etc.
    -->
    <uses-permission android:name="android.permission.INTERNET"/>

    <!-- io.flutter.app.FlutterApplication is an android.app.Application that
         calls FlutterMain.startInitialization(this); in its onCreate method.
         In most cases you can leave this as-is, but you if you want to provide
         additional functionality it is fine to subclass or reimplement
         FlutterApplication and put your custom class here. -->
    <application
        android:name="${applicationName}"
        android:label="chat_app"
        android:icon="@mipmap/ic_launcher">
        <activity
            android:name=".MainActivity"
            android:launchMode="singleTop"
            android:theme="@style/LaunchTheme"
            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection|fontScale|screenLayout|density"
            android:hardwareAccelerated="true"
            android:windowSoftInputMode="adjustResize">
            <!-- This keeps the window background of the activity showing
                 until Flutter renders its first frame. It can be removed if
                 there is no splash screen (such as the default splash screen
                 defined in @style/LaunchTheme). -->
            <meta-data
                android:name="flutterEmbedding"
                android:value="2" />
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>
                <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>
        </activity>
    </application>
</manifest>

Gradle wrapper properties

#Fri Jun 23 08:50:38 CEST 2017
distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip

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 GradleException("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 from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
apply plugin: 'com.google.gms.google-services'


android {
    compileSdkVersion 29

    lintOptions {
        disable 'InvalidPackage'
    }

    defaultConfig {
        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
        applicationId "com.santosenoque.chatapp"
        minSdkVersion 16
        targetSdkVersion 27
        versionCode flutterVersionCode.toInteger()
        versionName flutterVersionName 
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
        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 {
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
    implementation "com.android.support:support-v4:27.1.1"
    implementation 'com.google.firebase:firebase-analytics:17.2.2'
}

build.gradle file

buildscript {
    repositories {
        google()
        jcenter()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:3.2.1'
        classpath 'com.google.gms:google-services:4.2.0'
    }
}

subprojects {
    project.configurations.all {
        resolutionStrategy.eachDependency { details ->
            if (details.requested.group == 'com.android.support'
                    && !details.requested.name.contains('multidex') ) {
                details.useVersion "27.1.1"
            }
            if (details.requested.group == 'androidx.core'
                    && !details.requested.name.contains('androidx') ) {
                details.useVersion "1.0.2"
            }
        }
    }
}

allprojects {
    repositories {
        google()
        jcenter()
    }
}

rootProject.buildDir = '../build'
subprojects {
    project.buildDir = "${rootProject.buildDir}/${project.name}"


}
subprojects {
    project.evaluationDependsOn(':app')


}

task clean(type: Delete) {
    delete rootProject.buildDir
}

main.dart

import 'package:chat_app/provider/app.dart';
import 'package:chat_app/provider/product.dart';
import 'package:chat_app/provider/user.dart';
import 'package:chat_app/screens/home.dart';
import 'package:chat_app/screens/login.dart';
import 'package:chat_app/screens/splash.dart';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';

void main() {
  WidgetsFlutterBinding.ensureInitialized();
  runApp(MultiProvider(providers: [
    ChangeNotifierProvider.value(value: UserProvider.initialize()),
    ChangeNotifierProvider.value(value: ProductProvider.initialize()),
    ChangeNotifierProvider.value(value: AppProvider()),


  ], child: MaterialApp(
    debugShowCheckedModeBanner: false,
    theme: ThemeData(
        primaryColor: Colors.white
    ),
    home: ScreensController(),
  ),));
}

class ScreensController extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    final user = Provider.of<UserProvider>(context);
    switch(user.status){
      case Status.Uninitialized:
        return Splash();
      case Status.Unauthenticated:
      case Status.Authenticating:
        return Login();
      case Status.Authenticated:
        return HomePage();
      default: return Login();
    }
  }
}