问题
I have install windows 10 64 bit and Android studio 64 bit. Making android apps work great. Everything is OK.
I have install Flutter SDK. This is result of "flutter doctor -v" :
[√] Flutter (Channel stable, v1.12.13+hotfix.8, on Microsoft Windows [Version 10.0.18363.535], locale en-US)
• Flutter version 1.12.13+hotfix.8 at C:\flutter
• Framework revision 0b8abb4724 (6 weeks ago), 2020-02-11 11:44:36 -0800
• Engine revision e1e6ced81d
• Dart version 2.7.0
[√] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
• Android SDK at F:\andevelop\sdk
• Android NDK location not configured (optional; useful for native profiling support)
• Platform android-29, build-tools 29.0.3
• ANDROID_HOME = F:\andevelop\sdk
• Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
• Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b04)
• All Android licenses accepted.
[√] Android Studio (version 3.6)
• Android Studio at C:\Program Files\Android\Android Studio
• Flutter plugin version 44.0.2
• Dart plugin version 192.7761
• Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b04)
[√] Connected device (1 available)
• SM A305F • R58M40JXVGM • android-arm64 • Android 10 (API 29)
• No issues found!
But I cannot solve this problem. I have tried every solution found on internet. Please help me. Thanks a lot.
Launching lib\main.dart on SM A305F in debug mode... Running Gradle task 'assembleDebug'...
FAILURE: Build failed with an exception.
What went wrong: A problem occurred configuring root project 'android'.
Could not resolve all artifacts for configuration ':classpath'. Could not find gradle.jar (com.android.tools.build:gradle:3.5.0). Searched in the following locations: https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.5.0/gradle-3.5.0.jar Could not find builder.jar (com.android.tools.build:builder:3.5.0). Searched in the following locations: https://dl.google.com/dl/android/maven2/com/android/tools/build/builder/3.5.0/builder-3.5.0.jar Could not find crash.jar (com.android.tools.analytics-library:crash:26.5.0). Searched in the following locations: https://dl.google.com/dl/android/maven2/com/android/tools/analytics-library/crash/26.5.0/crash-26.5.0.jar Could not find lint-gradle-api.jar (com.android.tools.lint:lint-gradle-api:26.5.0). Searched in the following locations: https://dl.google.com/dl/android/maven2/com/android/tools/lint/lint-gradle-api/26.5.0/lint-gradle-api-26.5.0.jar Could not find gradle-api.jar (com.android.tools.build:gradle-api:3.5.0). Searched in the following locations: https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle-api/3.5.0/gradle-api-3.5.0.jar Could not find databinding-compiler-common.jar (androidx.databinding:databinding-compiler-common:3.5.0). Searched in the following locations: https://dl.google.com/dl/android/maven2/androidx/databinding/databinding-compiler-common/3.5.0/databinding-compiler-common-3.5.0.jar Could not find manifest-merger.jar (com.android.tools.build:manifest-merger:26.5.0). Searched in the following locations: https://dl.google.com/dl/android/maven2/com/android/tools/build/manifest-merger/26.5.0/manifest-merger-26.5.0.jar Could not find sdk-common.jar (com.android.tools:sdk-common:26.5.0). Searched in the following locations: https://dl.google.com/dl/android/maven2/com/android/tools/sdk-common/26.5.0/sdk-common-26.5.0.jar Could not find builder-test-api.jar (com.android.tools.build:builder-test-api:3.5.0). Searched in the following locations: https://dl.google.com/dl/android/maven2/com/android/tools/build/builder-test-api/3.5.0/builder-test-api-3.5.0.jar Could not find ddmlib.jar (com.android.tools.ddms:ddmlib:26.5.0). Searched in the following locations: https://dl.google.com/dl/android/maven2/com/android/tools/ddms/ddmlib/26.5.0/ddmlib-26.5.0.jar Could not find tracker.jar (com.android.tools.analytics-library:tracker:26.5.0). Searched in the following locations: https://dl.google.com/dl/android/maven2/com/android/tools/analytics-library/tracker/26.5.0/tracker-26.5.0.jar Could not find sdklib.jar (com.android.tools:sdklib:26.5.0). Searched in the following locations: https://dl.google.com/dl/android/maven2/com/android/tools/sdklib/26.5.0/sdklib-26.5.0.jar Could not find layoutlib-api.jar (com.android.tools.layoutlib:layoutlib-api:26.5.0). Searched in the following locations: https://dl.google.com/dl/android/maven2/com/android/tools/layoutlib/layoutlib-api/26.5.0/layoutlib-api-26.5.0.jar Could not find dvlib.jar (com.android.tools:dvlib:26.5.0). Searched in the following locations: https://dl.google.com/dl/android/maven2/com/android/tools/dvlib/26.5.0/dvlib-26.5.0.jar Could not find repository.jar (com.android.tools:repository:26.5.0). Searched in the following locations: https://dl.google.com/dl/android/maven2/com/android/tools/repository/26.5.0/repository-26.5.0.jar Could not find shared.jar (com.android.tools.analytics-library:shared:26.5.0). Searched in the following locations: https://dl.google.com/dl/android/maven2/com/android/tools/analytics-library/shared/26.5.0/shared-26.5.0.jar Could not find common.jar (com.android.tools:common:26.5.0). Searched in the following locations: https://dl.google.com/dl/android/maven2/com/android/tools/common/26.5.0/common-26.5.0.jar Could not find jetifier-processor.jar (com.android.tools.build.jetifier:jetifier-processor:1.0.0-beta04). Searched in the following locations: https://dl.google.com/dl/android/maven2/com/android/tools/build/jetifier/jetifier-processor/1.0.0-beta04/jetifier-processor-1.0.0-beta04.jar Could not find bundletool.jar (com.android.tools.build:bundletool:0.9.0). Searched in the following locations: https://dl.google.com/dl/android/maven2/com/android/tools/build/bundletool/0.9.0/bundletool-0.9.0.jar Could not find jetifier-core.jar (com.android.tools.build.jetifier:jetifier-core:1.0.0-beta04). Searched in the following locations: https://dl.google.com/dl/android/maven2/com/android/tools/build/jetifier/jetifier-core/1.0.0-beta04/jetifier-core-1.0.0-beta04.jar Could not find protos.jar (com.android.tools.analytics-library:protos:26.5.0). Searched in the following locations: https://dl.google.com/dl/android/maven2/com/android/tools/analytics-library/protos/26.5.0/protos-26.5.0.jar Could not find builder-model.jar (com.android.tools.build:builder-model:3.5.0). Searched in the following locations: https://dl.google.com/dl/android/maven2/com/android/tools/build/builder-model/3.5.0/builder-model-3.5.0.jar Could not find apkzlib.jar (com.android.tools.build:apkzlib:3.5.0). Searched in the following locations: https://dl.google.com/dl/android/maven2/com/android/tools/build/apkzlib/3.5.0/apkzlib-3.5.0.jar Could not find apksig.jar (com.android.tools.build:apksig:3.5.0). Searched in the following locations: https://dl.google.com/dl/android/maven2/com/android/tools/build/apksig/3.5.0/apksig-3.5.0.jar Could not find annotations.jar (com.android.tools:annotations:26.5.0). Searched in the following locations: https://dl.google.com/dl/android/maven2/com/android/tools/annotations/26.5.0/annotations-26.5.0.jar Could not find databinding-common.jar (androidx.databinding:databinding-common:3.5.0). Searched in the following locations: https://dl.google.com/dl/android/maven2/androidx/databinding/databinding-common/3.5.0/databinding-common-3.5.0.jar Could not find baseLibrary.jar (com.android.databinding:baseLibrary:3.5.0). Searched in the following locations: https://dl.google.com/dl/android/maven2/com/android/databinding/baseLibrary/3.5.0/baseLibrary-3.5.0.jar
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 Finished with error: Gradle task assembleDebug failed with exit code 1
And this is the app build.gradle code:
buildscript {
ext.kotlin_version = '1.3.50'
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.5.0'
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
}
}
allprojects {
repositories {
google()
jcenter()
}
}
rootProject.buildDir = '../build'
subprojects {
project.buildDir = "${rootProject.buildDir}/${project.name}"
}
subprojects {
project.evaluationDependsOn(':app')
}
task clean(type: Delete) {
delete rootProject.buildDir
}
来源：https://stackoverflow.com/questions/60869466/flutter-app-a-problem-occurred-configuring-root-project-android