最近在2020/06/10更新下flutter版本，应该到1.17.3，现在我本地用的是stable版本，但是官方推荐使用master稳定版。
现在的问题是，android打包报错。
说下问题，看下。
Running Gradle task 'assembleRelease'...
FAILURE: Build failed with an exception.
* What went wrong:
Could not determine the dependencies of task ':app:lintVitalRelease'.
> Could not resolve all artifacts for configuration ':app:debugCompileClasspath'.
> Could not resolve io.flutter:flutter_embedding_debug:1.0.0-ee76268252c22f5c11e82a7b87423ca3982e51a7.
Required by:
project :app
project :app > project :fluttertoast
project :app > project :package_info
project :app > project :flutter_plugin_android_lifecycle
project :app > project :url_launcher
project :app > project :webview_flutter
project :app > project :flutter_blue
project :app > project :path_provider
project :app > project :shared_preferences
project :app > project :image_picker
project :app > project :url_launcher_web
project :app > project :barcode_scan
> Skipped due to earlier error
> Skipped due to earlier error
> Skipped due to earlier error
> Could not resolve io.flutter:armeabi_v7a_debug:1.0.0-ee76268252c22f5c11e82a7b87423ca3982e51a7.
Required by:
project :app
> Skipped due to earlier error
> Skipped due to earlier error
> Skipped due to earlier error
> Could not resolve io.flutter:arm64_v8a_debug:1.0.0-ee76268252c22f5c11e82a7b87423ca3982e51a7.
Required by:
project :app
> Skipped due to earlier error
> Skipped due to earlier error
> Skipped due to earlier error
> Could not resolve io.flutter:x86_64_debug:1.0.0-ee76268252c22f5c11e82a7b87423ca3982e51a7.
Required by:
project :app
> Skipped due to earlier error
> Skipped due to earlier error
> Skipped due to earlier error
> Could not resolve io.flutter:x86_debug:1.0.0-ee76268252c22f5c11e82a7b87423ca3982e51a7.
Required by:
project :app
> Skipped due to earlier error
> Skipped due to earlier error
> Skipped due to earlier error
* 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 5m 26s 网上查了下问题，看到搭梯子可以解决，然后联想到。。。
问题出在哪呢，字面意思不能解析依赖了，想想当时在配置xcode的时候，各种下载不了包，解析不了依赖，然后用的清华镜像，估计是可能这个问题，所以去找找gradle的脚本。
解决问题：
1、找到/flutter/packages/flutter_tools/gradle/flutter.gradle打包文件
修改maven repro
46 class FlutterPlugin implements Plugin<Project> {
47 //update 20200610
48 //private static final String MAVEN_REPO = "https://storage.googleapis.com/download.flutter.io";
49 private static final String MAVEN_REPO = "https://storage.flutter-io.cn/download.flutter.io";
50 // The platforms that can be passed to the `--Ptarget-platform` flag.
51 private static final String PLATFORM_ARM32 = "android-arm";
52 private static final String PLATFORM_ARM64 = "android-arm64";
53 private static final String PLATFORM_X86 = "android-x86";
54 private static final String PLATFORM_X86_64 = "android-x64";修改第一段
24 buildscript {
25 repositories {
26 // 去掉这两个 20200610
27 // google()
28 // jcenter()
29 maven { url'https://maven.aliyun.com/repository/google'}
30 maven { url'https://maven.aliyun.com/repository/jcenter'}
31 maven { url'http://maven.aliyun.com/nexus/content/groups/public'}
32 }
33 dependencies {
34 classpath 'com.android.tools.build:gradle:3.5.0'
35 }
36 }
修改第二段：
204 void addFlutterDependencies(buildType) {
205 String flutterBuildMode = buildModeFor(buildType)
206 if (!supportsBuildMode(flutterBuildMode)) {
207 return
208 }
209 String repository = useLocalEngine()
210 ? project.property('local-engine-repo')
211 : MAVEN_REPO
212
213 project.rootProject.allprojects {
214 repositories {
215 maven {
216 url repository
217 }
218 //增加这段代码update by lwd
219 maven { url'https://maven.aliyun.com/repository/google'}
220 maven { url'https://maven.aliyun.com/repository/jcenter'}
221 maven { url'http://maven.aliyun.com/nexus/content/groups/public'}
222 }
223 }
2、修改下项目的android下的build.gradle
buildscript {
repositories {
//google()
//jcenter()
maven { url'https://maven.aliyun.com/repository/google'}
maven { url'https://maven.aliyun.com/repository/jcenter'}
maven { url'http://maven.aliyun.com/nexus/content/groups/public'}
}解决后再编译
weidong:xy-domes-app weidong$ flutter build apk --release
You are building a fat APK that includes binaries for android-arm, android-arm64, android-x64.
If you are deploying the app to the Play Store, it's recommended to use app bundles or split the APK to reduce the APK size.
To generate an app bundle, run:
flutter build appbundle --target-platform android-arm,android-arm64,android-x64
Learn more on: https://developer.android.com/guide/app-bundle
To split the APKs per ABI, run:
flutter build apk --target-platform android-arm,android-arm64,android-x64 --split-per-abi
Learn more on: https://developer.android.com/studio/build/configure-apk-splits#configure-abi-split
Running Gradle task 'assembleRelease'... 注: 某些输入文件使用了未经检查或不安全的操作。
注: 有关详细信息, 请使用 -Xlint:unchecked 重新编译。
注: /Users/weidong/install/flutter/.pub-cache/hosted/pub.flutter-io.cn/flutter_blue-0.7.2/android/src/main/java/com/pauldemarco/flutter_blue/FlutterBluePlugin.java使用或覆盖了已过时的 API。
注: 有关详细信息, 请使用 -Xlint:deprecation 重新编译。
注: /Users/weidong/install/workspace/xy-domes-app/build/flutter_blue/generated/source/proto/release/javalite/com/pauldemarco/flutter_blue/Protos.java使用了未经检查或不安全的操作。
注: 有关详细信息, 请使用 -Xlint:unchecked 重新编译。
注: 某些输入文件使用或覆盖了已过时的 API。
注: 有关详细信息, 请使用 -Xlint:deprecation 重新编译。
注: /Users/weidong/install/flutter/.pub-cache/hosted/pub.flutter-io.cn/webview_flutter-0.3.22+1/android/src/main/java/io/flutter/plugins/webviewflutter/FlutterWebView.java使用了未经检查或不安全的操作。
注: 有关详细信息, 请使用 -Xlint:unchecked 重新编译。
注: /Users/weidong/install/flutter/.pub-cache/hosted/pub.flutter-io.cn/url_launcher-5.4.10/android/src/main/java/io/flutter/plugins/urllauncher/WebViewActivity.java使用或覆盖了已过时的 API。
注: 有关详细信息, 请使用 -Xlint:deprecation 重新编译。
注: /Users/weidong/install/workspace/xy-domes-app/android/app/src/main/java/com/xy/domes/app/BleOpenOperation.java使用了未经检查或不安全的操作。
注: 有关详细信息, 请使用 -Xlint:unchecked 重新编译。
Calling mockable JAR artifact transform to create file: /Users/weidong/.gradle/caches/transforms-2/files-2.1/1fae5d14af02af09d1d0dab18bf190e5/android.jar with input /Users/weidong/Library/Android/sdk/platforms/android-28/android.jar
Calling mockable JAR artifact transform to create file: /Users/weidong/.gradle/caches/transforms-2/files-2.1/9f586020ba57250f77e75fe1119dfff5/android.jar with input /Users/weidong/Library/Android/sdk/platforms/android-29/android.jar
Removed unused resources: Binary resource data reduced from 802KB to 744KB: Removed 7%
Running Gradle task 'assembleRelease'...
Running Gradle task 'assembleRelease'... Done 185.7s (!)
✓ Built build/app/outputs/apk/release/app-release.apk (28.6MB).
成功解决，坑啊。。。