錯誤內容：

Unable to resolve dependency for ':[email protected]/compileClasspath': Could not resolve com.android.support:appcompat-v7:26.1.0.
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Unable to resolve dependency for ':[email protected]/compileClasspath': Could not resolve com.android.support.test:runner:1.0.1
 
.
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Unable to resolve dependency for ':[email protected]/compileClasspath': Could not resolve com.android.support.test.espresso:espresso-core:3.0.1.
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解決方案

1. 修改檔案 build.gradle

將

dependencies {
    ...
}

修改為：

dependencies {
    implementation fileTree(dir
 
: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:26.+'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:0.4'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:2.2.2'
 

}

2. 修改之後build可能會又出現如下錯誤：

Unable to resolve dependency for ':[email protected]/compileClasspath': Could not resolve jwriter:jwriter:2.1.1.
Unable to resolve dependency for ':[email protected]/compileClasspath': Could not resolve junit:junit:4.12.

再將上述部分修改為：

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:26.+'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    //testImplementation 'junit:junit:4.12'
    //androidTestImplementation 'com.android.support.test:runner:0.4'
    //androidTestImplementation 'com.android.support.test.espresso:espresso-core:2.2.2'

3. 再次build之後還有可能出現以下錯誤：

No resource identifier found for attribute 'layout_behavior' in package

再將上述部分修改為：

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:26.+'
    implementation 'com.android.support:design:26.+'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    //testImplementation 'junit:junit:4.12'
    //androidTestImplementation 'com.android.support.test:runner:0.4'
    //androidTestImplementation 'com.android.support.test.espresso:espresso-core:2.2.2'