Gradle失败:删除kotlintest后无法解决: io

Question

我已经创建了一个新的Android项目，并在Intrument测试和单元测试中设置了mockk：

    androidTestImplementation "io.mockk:mockk:{1.9.3}"
    testImplementation "io.mockk:mockk:{1.9.3}"

Gradle同步正常。

如果我添加kotlintest并再次同步，则一切正常：

android {
    compileSdkVersion 29
    buildToolsVersion "29.0.1"
    defaultConfig {
        applicationId "com.example.testing"
        minSdkVersion 15
        targetSdkVersion 29
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
    testOptions {
        unitTests.all {
            useJUnitPlatform()
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation"org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation 'androidx.appcompat:appcompat:1.0.2'
    implementation 'androidx.core:core-ktx:1.0.2'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'

    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test:runner:1.2.0'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'

    //Mocking framework
    androidTestImplementation "io.mockk:mockk:{1.9.3}"
    testImplementation "io.mockk:mockk:{1.9.3}"

    //Testing framework
    androidTestImplementation 'io.kotlintest:kotlintest-runner-junit5:3.3.0'
    testImplementation 'io.kotlintest:kotlintest-runner-junit5:3.3.0'
}

但是如果我删除了kotlintest，而把gradle文件留在添加kotlintest之前一样，那么我就会得到错误：

Failed to resolve: io

这是我的最终Gradle文件：

apply plugin: 'com.android.application'

apply plugin: 'kotlin-android'

apply plugin: 'kotlin-android-extensions'

android {
    compileSdkVersion 29
    buildToolsVersion "29.0.1"
    defaultConfig {
        applicationId "com.example.testing"
        minSdkVersion 15
        targetSdkVersion 29
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation"org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation 'androidx.appcompat:appcompat:1.0.2'
    implementation 'androidx.core:core-ktx:1.0.2'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'

    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test:runner:1.2.0'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'

    //Mocking framework
    androidTestImplementation "io.mockk:mockk:{1.9.3}"
    testImplementation "io.mockk:mockk:{1.9.3}"
}

我试着清理项目和gradle。

你知道为什么会发生这种事吗？

谢谢

Answer 1

您的mockk库版本包含{}。

我们通常在处理变量或ext块中的版本时使用它们：

testImplementation "io.mockk:mockk:${Version.mockkVersion}"

在您的例子中，当使用固定值时，您不应该使用大括号：

testImplementation "io.mockk:mockk:1.9.3"

它应该可以很好地与此更改同步