我刚刚安装了android studio和vscode开始学习扑动。因此，当我尝试在(chrome)上运行演示应用程序时，该应用程序运行得非常好，但当我试图用usb线在手机上调试时，它失败了。我不能用模拟器，因为我的电脑很旧
flutter run -v它给了我这个:
[ +25 ms] Building APK
[ +70 ms] Running Gradle task 'assembleDebug'...
[ +14 ms] Using gradle from C:UsershhStudioProjectsuntitledandroidgradlew.bat.
[ +48 ms] executing: C:Program FilesAndroidAndroid Studiojrebinjava -version
[ +206 ms] Exit code 0 from: C:Program FilesAndroidAndroid Studiojrebinjava -version
[ ] openjdk version "11.0.10" 2021-01-19
OpenJDK Runtime Environment (build 11.0.10+0-b96-7249189)
OpenJDK 64-Bit Server VM (build 11.0.10+0-b96-7249189, mixed mode)
[ +3 ms] executing: [C:UsershhStudioProjectsuntitledandroid/] C:UsershhStudioProjectsuntitledandroidgradlew.bat -Pverbose=true
-Ptarget-platform=android-arm64 -Ptarget=C:UsershhStudioProjectsuntitledlibmain.dart -Pdart-defines=RkxVVFRFUl9XRUJfQVVUT19ERVRFQ1Q9dHJ1ZQ==
-Pdart-obfuscation=false -Ptrack-widget-creation=true -Ptree-shake-icons=false -Pfilesystem-scheme=org-dartlang-root assembleDebug
[+12814 ms] Starting a Gradle Daemon, 1 incompatible Daemon could not be reused, use --status for details
[+123489 ms] FAILURE: Build failed with an exception.
[ +27 ms] * What went wrong:
[ ] A problem occurred configuring root project 'android'.
[ ] > Could not resolve all artifacts for configuration ':classpath'.
[ ] > Could not find gradle-4.1.0.jar (com.android.tools.build:gradle:4.1.0).
[ +10 ms] Searched in the following locations:
[ ] https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/4.1.0/gradle-4.1.0.jar
[ +19 ms] > Could not find builder-4.1.0.jar (com.android.tools.build:builder:4.1.0).
[ +47 ms] Searched in the following locations:
[ ] https://dl.google.com/dl/android/maven2/com/android/tools/build/builder/4.1.0/builder-4.1.0.jar
[ ] > Could not find aaptcompiler-4.1.0.jar (com.android.tools.build:aaptcompiler:4.1.0).
[ ] Searched in the following locations:
[ ] https://dl.google.com/dl/android/maven2/com/android/tools/build/aaptcompiler/4.1.0/aaptcompiler-4.1.0.jar
[ ] > Could not find bundletool-0.14.0.jar (com.android.tools.build:bundletool:0.14.0).
[ ] Searched in the following locations:
[ ] https://dl.google.com/dl/android/maven2/com/android/tools/build/bundletool/0.14.0/bundletool-0.14.0.jar
[ ] > Could not find manifest-merger-27.1.0.jar (com.android.tools.build:manifest-merger:27.1.0).
[ +1 ms] Searched in the following locations:
[ +4 ms] https://dl.google.com/dl/android/maven2/com/android/tools/build/manifest-merger/27.1.0/manifest-merger-27.1.0.jar
[ ] > Could not find lint-gradle-api-27.1.0.jar (com.android.tools.lint:lint-gradle-api:27.1.0).
[ ] Searched in the following locations:
[ ] https://dl.google.com/dl/android/maven2/com/android/tools/lint/lint-gradle-api/27.1.0/lint-gradle-api-27.1.0.jar
[ ] > Could not find lint-model-27.1.0.jar (com.android.tools.lint:lint-model:27.1.0).
[ ] Searched in the following locations:
[ ] https://dl.google.com/dl/android/maven2/com/android/tools/lint/lint-model/27.1.0/lint-model-27.1.0.jar
[ ] > Could not find sdk-common-27.1.0.jar (com.android.tools:sdk-common:27.1.0).
[ ] Searched in the following locations:
[ +28 ms] https://dl.google.com/dl/android/maven2/com/android/tools/sdk-common/27.1.0/sdk-common-27.1.0.jar
[ ] > Could not find aapt2-proto-4.1.0-6503028.jar (com.android.tools.build:aapt2-proto:4.1.0-6503028).
[ ] Searched in the following locations:
[ ] https://dl.google.com/dl/android/maven2/com/android/tools/build/aapt2-proto/4.1.0-6503028/aapt2-proto-4.1.0-6503028.jar
[ ] > Could not find crash-27.1.0.jar (com.android.tools.analytics-library:crash:27.1.0).
[ ] Searched in the following locations:
[ ] https://dl.google.com/dl/android/maven2/com/android/tools/analytics-library/crash/27.1.0/crash-27.1.0.jar
[ ] > Could not find gradle-api-4.1.0.jar (com.android.tools.build:gradle-api:4.1.0).
[ ] Searched in the following locations:
[ ] https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle-api/4.1.0/gradle-api-4.1.0.jar
[ ] > Could not find databinding-compiler-common-4.1.0.jar (androidx.databinding:databinding-compiler-common:4.1.0).
[ ] Searched in the following locations:
[ +3 ms] https://dl.google.com/dl/android/maven2/androidx/databinding/databinding-compiler-common/4.1.0/databinding-compiler-common-4.1.0.jar
[ +4 ms] > Could not find builder-model-4.1.0.jar (com.android.tools.build:builder-model:4.1.0).
[ +13 ms] Searched in the following locations:
[ ] https://dl.google.com/dl/android/maven2/com/android/tools/build/builder-model/4.1.0/builder-model-4.1.0.jar
[ ] > Could not find builder-test-api-4.1.0.jar (com.android.tools.build:builder-test-api:4.1.0).
[ ] Searched in the following locations:
[ ] https://dl.google.com/dl/android/maven2/com/android/tools/build/builder-test-api/4.1.0/builder-test-api-4.1.0.jar
[ ] > Could not find ddmlib-27.1.0.jar (com.android.tools.ddms:ddmlib:27.1.0).
[ ] Searched in the following locations:
[ ] https://dl.google.com/dl/android/maven2/com/android/tools/ddms/ddmlib/27.1.0/ddmlib-27.1.0.jar
[ +50 ms] > Could not find signflinger-4.1.0.jar (com.android:signflinger:4.1.0).
[ ] Searched in the following locations:
[ ] https://dl.google.com/dl/android/maven2/com/android/signflinger/4.1.0/signflinger-4.1.0.jar
[ ] > Could not find zipflinger-4.1.0.jar (com.android:zipflinger:4.1.0).
[ ] Searched in the following locations:
[ ] https://dl.google.com/dl/android/maven2/com/android/zipflinger/4.1.0/zipflinger-4.1.0.jar
[ ] > Could not find tracker-27.1.0.jar (com.android.tools.analytics-library:tracker:27.1.0).
[ ] Searched in the following locations:
[ +1 ms] https://dl.google.com/dl/android/maven2/com/android/tools/analytics-library/tracker/27.1.0/tracker-27.1.0.jar
[ ] > Could not find sdklib-27.1.0.jar (com.android.tools:sdklib:27.1.0).
[ +10 ms] Searched in the following locations:
[ +6 ms] https://dl.google.com/dl/android/maven2/com/android/tools/sdklib/27.1.0/sdklib-27.1.0.jar
[ ] > Could not find layoutlib-api-27.1.0.jar (com.android.tools.layoutlib:layoutlib-api:27.1.0).
[ ] Searched in the following locations:
[ ] https://dl.google.com/dl/android/maven2/com/android/tools/layoutlib/layoutlib-api/27.1.0/layoutlib-api-27.1.0.jar
[ ] > Could not find dvlib-27.1.0.jar (com.android.tools:dvlib:27.1.0).
[ ] Searched in the following locations:
[ ] https://dl.google.com/dl/android/maven2/com/android/tools/dvlib/27.1.0/dvlib-27.1.0.jar
[ ] > Could not find repository-27.1.0.jar (com.android.tools:repository:27.1.0).
[ ] Searched in the following locations:
[ ] https://dl.google.com/dl/android/maven2/com/android/tools/repository/27.1.0/repository-27.1.0.jar
[ +7 ms] > Could not find shared-27.1.0.jar (com.android.tools.analytics-library:shared:27.1.0).
[ +8 ms] Searched in the following locations:
[ +1 ms] https://dl.google.com/dl/android/maven2/com/android/tools/analytics-library/shared/27.1.0/shared-27.1.0.jar
[ +3 ms] > Could not find common-27.1.0.jar (com.android.tools:common:27.1.0).
[ +1 ms] Searched in the following locations:
[ +1 ms] https://dl.google.com/dl/android/maven2/com/android/tools/common/27.1.0/common-27.1.0.jar
[ ] > Could not find transform-api-2.0.0-deprecated-use-gradle-api.jar (com.android.tools.build:transform-api:2.0.0-deprecated-use-gradle-api).
[ +59 ms] Searched in the following locations:
[ +2 ms]
https://dl.google.com/dl/android/maven2/com/android/tools/build/transform-api/2.0.0-deprecated-use-gradle-api/transform-api-2.0.0-deprecated-use-gradle-api.jar
[ +5 ms] > Could not find jetifier-processor-1.0.0-beta09.jar (com.android.tools.build.jetifier:jetifier-processor:1.0.0-beta09).
[ ] Searched in the following locations:
[ +4 ms] https://dl.google.com/dl/android/maven2/com/android/tools/build/jetifier/jetifier-processor/1.0.0-beta09/jetifier-processor-1.0.0-beta09.jar
[ ] > Could not find jetifier-core-1.0.0-beta09.jar (com.android.tools.build.jetifier:jetifier-core:1.0.0-beta09).
[ ] Searched in the following locations:
[ ] https://dl.google.com/dl/android/maven2/com/android/tools/build/jetifier/jetifier-core/1.0.0-beta09/jetifier-core-1.0.0-beta09.jar
[ ] > Could not find protos-27.1.0.jar (com.android.tools.analytics-library:protos:27.1.0).
[ ] Searched in the following locations:
[ ] https://dl.google.com/dl/android/maven2/com/android/tools/analytics-library/protos/27.1.0/protos-27.1.0.jar
[ ] > Could not find core-proto-0.0.2-dev.jar (com.google.test.platform:core-proto:0.0.2-dev).
[ ] Searched in the following locations:
[ ] https://dl.google.com/dl/android/maven2/com/google/test/platform/core-proto/0.0.2-dev/core-proto-0.0.2-dev.jar
[ ] > Could not find apkzlib-4.1.0.jar (com.android.tools.build:apkzlib:4.1.0).
[ ] Searched in the following locations:
[ ] https://dl.google.com/dl/android/maven2/com/android/tools/build/apkzlib/4.1.0/apkzlib-4.1.0.jar
[ ] > Could not find apksig-4.1.0.jar (com.android.tools.build:apksig:4.1.0).
[ ] Searched in the following locations:
[ ] https://dl.google.com/dl/android/maven2/com/android/tools/build/apksig/4.1.0/apksig-4.1.0.jar
[ ] > Could not find annotations-27.1.0.jar (com.android.tools:annotations:27.1.0).
[ ] Searched in the following locations:
[ ] https://dl.google.com/dl/android/maven2/com/android/tools/annotations/27.1.0/annotations-27.1.0.jar
[ ] > Could not find databinding-common-4.1.0.jar (androidx.databinding:databinding-common:4.1.0).
[ ] Searched in the following locations:
[ ] https://dl.google.com/dl/android/maven2/androidx/databinding/databinding-common/4.1.0/databinding-common-4.1.0.jar
[ ] > Could not find baseLibrary-4.1.0.jar (com.android.databinding:baseLibrary:4.1.0).
[ ] Searched in the following locations:
[ +14 ms] https://dl.google.com/dl/android/maven2/com/android/databinding/baseLibrary/4.1.0/baseLibrary-4.1.0.jar
[ +15 ms] * 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 2m 15s
[+1017 ms] Running Gradle task 'assembleDebug'... (completed in 137.9s)
[ +9 ms] Exception: Gradle task assembleDebug failed with exit code 1
我很抱歉，我只是一个非常初学者，但我试图降级gradle，重新安装android studio和vscode和sdk，但仍然没有运气。
这是我的build.gradle:buildscript {
ext.kotlin_version = '1.3.50'
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:4.1.0'
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
}
}
allprojects {
repositories {
google()
jcenter()
}
}
rootProject.buildDir = '../build'
subprojects {
project.buildDir = "${rootProject.buildDir}/${project.name}"
project.evaluationDependsOn(':app')
}
task clean(type: Delete) {
delete rootProject.buildDir
}
注意，我没有安装任何模拟器，但我安装了android studio来安装sdk。它下载了:输入图片描述
输入图片描述
这里是grdale。属性:
org.gradle.jvmargs=-Xmx1536M
android.useAndroidX=true
android.enableJetifier=true
下面是代理设置的截图:HTTP代理
，这是一个截图，当我运行gradle build --warning-mode=all:它让我没有依赖输入图片描述
包装。属性:
#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-6.7-all.zip
尝试解决方案后出现新的错误:
Building with sound null safety
Running Gradle task 'assembleRelease'...
FAILURE: Build failed with an exception.
* Where:
Build file 'C:UsershhStudioProjectsuntitled1androidappbuild.gradle' line: 26
* What went wrong:
A problem occurred evaluating project ':app'.
> Could not resolve all artifacts for configuration 'classpath'.
> Could not find transform-api-2.0.0-deprecated-use-gradle-api.jar (com.android.tools.build:transform-api:2.0.0-deprecated-use-gradle-api).
Searched in the following locations:
https://dl.google.com/dl/android/maven2/com/android/tools/build/transform-api/2.0.0-deprecated-use-gradle-api/transform-api-2.0.0-deprecated-use-gradle-ap
i.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 49s
Running Gradle task 'assembleRelease'... 52.0s
Gradle task assembleRelease failed with exit code 1
由于某种原因，它无法从存储库获取.jar文件。让我们检查对资源的访问，尝试其中一个链接，例如:https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/4.1.0/gradle-4.1.0.jar如果下载已经开始，那么资源是可用的。
试试这个:
1。打开工作室的设置，发现这个:存储库设置。这里应该有所有的url
2。编辑gradle文件:
buildscript {
ext.kotlin_version = '1.3.50'
repositories {
mavenCentral()
maven { url 'https://jitpack.io' }
maven { url 'https://dl.google.com/dl/android/maven2' }
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:4.1.0'
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
}
}
allprojects {
repositories {
mavenCentral()
maven { url 'https://jitpack.io' }
maven { url 'https://dl.google.com/dl/android/maven2' }
google()
jcenter()
}
}
rootProject.buildDir = '../build'
subprojects {
project.buildDir = "${rootProject.buildDir}/${project.name}"
project.evaluationDependsOn(':app')
}
task clean(type: Delete) {
delete rootProject.buildDir
}
3。在flutter.gradle:
中添加这些存储库repositories {
mavenCentral()
maven { url 'https://jitpack.io' }
maven { url 'https://dl.google.com/dl/android/maven2' }
google()
jcenter()
}
4。关闭Android Studio
5。删除文件夹。gradle在C:Users{Your User}
6。打开Android Studio并重新构建