Flutter Gradle 構建異常

Question

因為 Flutter 和 android pie 或 sdk 28 有一個錯誤，觸摸文本字段時鍵盤不會出現，我想嘗試將編譯和目標 sdk 降級回 27。我一周左右升級了它們，然后又回來了然后一切都在版本 27 上運行。但是當我現在嘗試構建它時，我收到此錯誤。

Launching lib\main.dart on ONEPLUS A6003 in debug mode...
Initializing gradle...
Resolving dependencies...
Gradle task 'assembleDebug'...
registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)
registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)
registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)
registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)
registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)
C:\Users\user\.gradle\caches\transforms-1\files-1.1\appcompat-v7-28.0.0.aar\06dacde0fc29b2587bc44934e40ef762\res\values-v28\values-v28.xml:9:5-12:13: AAPT: error: resource android:attr/dialogCornerRadius not found.

C:\Users\user\Project\yapp_mobile\build\app\intermediates\incremental\mergeDebugResources\merged.dir\values-v28\values-v28.xml:11: AAPT: error: resource android:attr/dialogCornerRadius not found.

C:\Users\user\.gradle\caches\transforms-1\files-1.1\appcompat-v7-28.0.0.aar\06dacde0fc29b2587bc44934e40ef762\res\values\values.xml:1304:5-69: AAPT: error: resource android:attr/fontVariationSettings not found.

C:\Users\user\.gradle\caches\transforms-1\files-1.1\appcompat-v7-28.0.0.aar\06dacde0fc29b2587bc44934e40ef762\res\values\values.xml:1304:5-69: AAPT: error: resource android:attr/ttcIndex not found.


FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:processDebugResources'.
> Failed to process resources, see aapt output above 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 17s
Finished with error: Gradle task assembleDebug failed with exit code 1

撲醫生

[√] Flutter (Channel master, v0.10.2-pre.69, on Microsoft Windows [Version 10.0.17134.345], locale de-DE)
[√] Android toolchain - develop for Android devices (Android SDK 27.0.3)
[√] Android Studio (version 3.2)
[√] IntelliJ IDEA Ultimate Edition (version 2017.3)
[!] VS Code, 64-bit edition (version 1.25.1)
[√] Connected device (1 available)

應用程序/build.gradle

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.")
}

apply plugin: 'com.android.application'
apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
def keystorePropertiesFile = rootProject.file("key.properties")
def keystoreProperties = new Properties()
keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
android {
    compileSdkVersion 27

    lintOptions {
        disable 'InvalidPackage'
    }

    defaultConfig {
        applicationId "com.my.app"
        minSdkVersion 19
        targetSdkVersion 27
        versionCode 6
        versionName "1"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
        multiDexEnabled true
    }
    signingConfigs {
        release {
            keyAlias keystoreProperties['keyAlias']
            keyPassword keystoreProperties['keyPassword']
            storeFile file(keystoreProperties['storeFile'])
            storePassword keystoreProperties['storePassword']
        }
    }
    buildTypes {
        release {
            signingConfig signingConfigs.release

            minifyEnabled true
            useProguard true

            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

flutter {
    source '../..'
}

dependencies {
    implementation 'com.google.firebase:firebase-messaging:17.3.4'
    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:multidex:1.0.3'
}
apply plugin: 'com.google.gms.google-services'

android/build.gradle

buildscript {
    repositories {
        google()
        jcenter()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:3.1.3'
        classpath 'com.google.gms:google-services:3.2.1'
    }
}

allprojects {
    repositories {
        google()
        jcenter()
        maven { url "https://jitpack.io" }
    }
}

rootProject.buildDir = '../build'
subprojects {
    project.buildDir = "${rootProject.buildDir}/${project.name}"
}
subprojects {
    project.evaluationDependsOn(':app')
}

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

Answer 1

我認為問題在於您正在嘗試使用 28.0 版本的 AppCompat，構建版本為 27（也許您的依賴項之一需要它？）。

嘗試明確要求 27.* 版本（將compile 'com.android.support:appcompat-v7:27.1.1'添加到您的依賴項中。如果您遇到版本沖突，那么您可能還必須降級您的一些 flutter 插件依賴項.

Answer 2

我設法通過一個一個刪除 pubspec.yaml 文件中的 dart 包來解決它，看看是哪個導致了錯誤。 特別是對我來說，我使用的是 image_picker，它在 0.5.0 版本上引入了一個重大更改，所以我只是降級到以前的版本並且它起作用了。

Answer 3

我創建了另一個 flutter 應用程序並替換了所有 .dart 文件以及 pubspec.yaml 中的包。 這是我找到的最快的方法。 其他方法可能會導致新的錯誤或有時毫無價值。