Android studio 编译出现的问题记录

1、app:transformClassesWithJarMergingForDebug'.

Error:Execution failed for task ':app:transformClassesWithJarMergingForDebug'. > com.android.build.transform.api.TransformException: java.util.zip.ZipException: duplicate entry: > android/support/v7/cardview/BuildConfig.class

解决办法：

1、在 Terminal 输入：./gradlew clean

2、在菜单中选择: Build -> Clean Project

2、Error:Unable to resolve dependency for ':app@releaseUnitTest/compileClasspath': Could not download junit.jar (junit:junit:4.12)

<a href="openFile:/Users/shenjiaqi/Documents/sjq/annotation/app/build.gradle">Open File</a><br><a href="Unable to resolve dependency for ':app@releaseUnitTest/compileClasspath': Could not download junit.jar (junit:junit:4.12)">Show Details</a>

解决办法：确保在 app 的 build.gradle 中包含下面语句：

repositories {

    google()

    jcenter()

    maven {url 'https://jitpark.io/'}

}

完整版如下：

apply plugin: 'com.android.application'

android {

    compileSdkVersion 27

    buildToolsVersion '26.0.2'

    defaultConfig {

        applicationId "com.sjq.recycletest"

        minSdkVersion 15

        targetSdkVersion 27

        versionCode 1

        versionName "1.0"

        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

    }

    buildTypes {

        release {

            minifyEnabled false

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

        }

    }

    repositories {

        google()

        jcenter()

    }

    sourceSets {

        main {

            manifest.srcFile 'src/main/AndroidManifest.xml'

            java.srcDirs = ['src/main/java', 'src/main/aidl']

            resources.srcDirs = ['src/main/java', 'src/main/aidl']

            aidl.srcDirs = ['src/main/aidl']

            res.srcDirs = ['src/main/res']

            assets.srcDirs = ['src/main/assets']

        }

    }

}

dependencies {

    compile fileTree(include: ['*.jar'], dir: 'libs')

    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {

        exclude group: 'com.android.support', module: 'support-annotations'

    })

    implementation 'com.android.support:appcompat-v7:27.1.1'

    implementation 'com.android.support:recyclerview-v7:27.1.1'

    testImplementation 'junit:junit:4.12'

}

3、注解报错Annotation processors must be explicitly declared now.

解决办法：

在app的build中

android {

    ...

    defaultConfig {

        ...

        //添加如下配置就OK了

        javaCompileOptions { annotationProcessorOptions { includeCompileClasspath = true } }

    }

    ...

}

巴特西

Android studio 编译出现的问题记录

1、app:transformClassesWithJarMergingForDebug'.

2、Error:Unable to resolve dependency for ':app@releaseUnitTest/compileClasspath': Could not download junit.jar (junit:junit:4.12)

3、注解报错Annotation processors must be explicitly declared now.

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