Android Studio 无法解析 : . 浓缩咖啡 :espresso-core:3. 2.0

Question

我尝试同步我的项目，但它一直失败并显示以下错误消息:
无法解决:androidx.{此处的特定 Activity 名称}.espresso:espresso-core:3.2.0
在项目结构对话框中显示
受影响的模块:app
无法解决:androidx.{此处的特定 Activity 名称}.ext:junit:1.1.1

android {
    compileSdkVersion 30
    buildToolsVersion "30.0.0"

    defaultConfig {
        applicationId "com.example."
        minSdkVersion 16
        targetSdkVersion 30
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner ".runner.AndroidJUnitRunner"
    }

    buildTypes {
        release {
            minifyEnabled true
            shrinkResources true
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: "libs", include: ["*.jar"])
    implementation 'androidx.appcompat:appcompat:1.1.0'
    implementation 'androidx.constraintlayout:constraintlayout:2.0.0-beta8'
    testImplementation 'junit:junit:4.13'
    androidTestImplementation '.ext:junit:1.1.1'
    androidTestImplementation '.espresso:espresso-core:3.2.0'
    androidTestImplementation 'androidx.test:runner:1.2.0'
    androidTestImplementation 'androidx.test:rules:1.2.0'
} 

Answer 1

清理和构建可能会或可能不会有时会发生这种类型的错误