java - 错误 :Execution failed for task ':app:processDebugResources' . > java.io.IOException:无法在 android studio 中删除文件夹 ""

Question

我正在尝试使用 Android Studio 开发 Android 应用程序，所以我创建了一个 Android 应用程序并想发布它。每当我单击“构建项目”以获取 apk 文件时，我收到此错误:

Error:Execution failed for task ':app:processDebugResources'.
> java.io.IOException: Could not delete folder C:\Users\ehsan\AndroidStudioProjects\MyApplication3\app\build\generated\source\r\debug\com\example\ehsan

构建.gradle:

apply plugin: 'com.android.application'

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.2"

    defaultConfig {
        applicationId "com.example.ehsan.myapplication"
        minSdkVersion 15
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:23.2.0'
}

Answer 1

react native

从你的 react native 文件夹运行:

cd android && gradlew clean

然后

cd .. && react-native run-android

Notes:

For mac you may need to change gradlew to ./gradlew

For the command prompt you may need to change the && to &

For powershell you may need to change the && to ; and gradlew to .\gradlew.bat

Each command can also be run individually like so cd android then gradlew clean then cd .. then react-native run-android