烦人的Resolved versions for app (26.1.0) and test app (27.1.1) differ问题__烦人的村民

参考方案

文献【1】给出了以下的方法，

在 app 的 build.gradle 中，在 android{...} 里添加如下代码：

configurations.all {

resolutionStrategy.force'com.android.support:support-annotations:27.1.1'

}

添加后的build.gradle(app)如下，重新make project，成功。

apply plugin: 'com.android.application'
android {
    compileSdkVersion 26
    defaultConfig {
        applicationId "com.spacesoftwares.myapplication2"
        minSdkVersion 21
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
    configurations.all {
        resolutionStrategy.force 'com.android.support:support-annotations:27.1.1'
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:26.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.1.2'
    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'
}

文中提到的第二种方法，是在 app 的 build.gradle 中，在 android{...} 里，更改一下属性，使其为最近版本号，如下

andorid{

...

defaultConfig {

compileSdkVersion 27

defaultConfig {

...

targetSdkVersion 27

...

}

...

}

...

}

试了一下，这种方法貌似不能通过。

本人的办法

最后，本人的办法：在新建项目之后，一上来就改掉那个版本号，用最新的

android{ 
   compileSdkVersion 27
    defaultConfig {
        minSdkVersion 21
        targetSdkVersion 27
    }

dependencies {
    implementation 'com.android.support:appcompat-v7:27.1.1'
 }

整个build.gradle(module app)的配置如下

apply plugin: 'com.android.application'

android {
    compileSdkVersion 27
    defaultConfig {
        applicationId "com.spacesoftwares.ssapplication"
        minSdkVersion 21
        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'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:27.1.1'
    implementation 'com.android.support.constraint:constraint-layout:1.1.2'
    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'
}

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