无法解决：com.android

时间：2017-10-31 14:08:24

标签： android android-studio android-gradle build.gradle

我在Android Studio 3.0中遇到了一个问题。我使用的是Windows 7 - 64位。

enter image description here

每当我想在手机上启动我的应用程序时，它就会崩溃。因此，当我用Google搜索时，我发现可能存在版本不匹配，因此我对build.gradle文件应用了一些更改。在更改和稍微调试之后，我无法解决此错误。

  

错误：无法解决：com.android

以下是我的MyProject/app/build.gradle文件：

apply plugin: 'com.android.application'

allprojects {
    repositories {
        jcenter()
        google()
    }
}

android {
    compileSdkVersion 26
    buildToolsVersion "26.0.2"
    defaultConfig {
        applicationId "com.planner.reemshams.projectplannerpro"
        minSdkVersion 17
        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'
        }
    }
}

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'
})
    compile 'com.android.support:appcompat-v7-26+'
    compile 'com.android.support.constraint:constraint-layout:1.0.2'
    compile 'com.android.support:recyclerview-v7-24+'
    compile 'com.android.support:cardview-v7-26+'
    testCompile 'junit:junit:4.12'
    implementation 'com.android.support:design-v7-26+'
}

编辑：当我尝试构建/运行应用时，我在Messages标签中获得了以下内容。

Error:Could not resolve all files for configuration ':app:debugCompileClasspath'.
> Could not find com.android.support:appcompat-v7-26+:.
  Searched in the following locations:
      file:/C:/Users/WinDows7/AppData/Local/Android/sdk/extras/m2repository/com/android/support/appcompat-v7-26+//appcompat-v7-26+-.pom
      file:/C:/Users/WinDows7/AppData/Local/Android/sdk/extras/m2repository/com/android/support/appcompat-v7-26+//appcompat-v7-26+-.jar
      file:/C:/Users/WinDows7/AppData/Local/Android/sdk/extras/google/m2repository/com/android/support/appcompat-v7-26+//appcompat-v7-26+-.pom
      file:/C:/Users/WinDows7/AppData/Local/Android/sdk/extras/google/m2repository/com/android/support/appcompat-v7-26+//appcompat-v7-26+-.jar
      file:/C:/Users/WinDows7/AppData/Local/Android/sdk/extras/android/m2repository/com/android/support/appcompat-v7-26+//appcompat-v7-26+-.pom
      file:/C:/Users/WinDows7/AppData/Local/Android/sdk/extras/android/m2repository/com/android/support/appcompat-v7-26+//appcompat-v7-26+-.jar
      file:/C:/Program Files/Android/Android Studio/gradle/m2repository/com/android/support/appcompat-v7-26+//appcompat-v7-26+-.pom
      file:/C:/Program Files/Android/Android Studio/gradle/m2repository/com/android/support/appcompat-v7-26+//appcompat-v7-26+-.jar
      https://jcenter.bintray.com/com/android/support/appcompat-v7-26+//appcompat-v7-26+-.pom
      https://jcenter.bintray.com/com/android/support/appcompat-v7-26+//appcompat-v7-26+-.jar
      https://dl.google.com/dl/android/maven2/com/android/support/appcompat-v7-26+//appcompat-v7-26+-.pom
      https://dl.google.com/dl/android/maven2/com/android/support/appcompat-v7-26+//appcompat-v7-26+-.jar
  Required by:
      project :app
> Could not find com.android.support:recyclerview-v7-24+:.
  Searched in the following locations:
      file:/C:/Users/WinDows7/AppData/Local/Android/sdk/extras/m2repository/com/android/support/recyclerview-v7-24+//recyclerview-v7-24+-.pom
      file:/C:/Users/WinDows7/AppData/Local/Android/sdk/extras/m2repository/com/android/support/recyclerview-v7-24+//recyclerview-v7-24+-.jar
      file:/C:/Users/WinDows7/AppData/Local/Android/sdk/extras/google/m2repository/com/android/support/recyclerview-v7-24+//recyclerview-v7-24+-.pom
      file:/C:/Users/WinDows7/AppData/Local/Android/sdk/extras/google/m2repository/com/android/support/recyclerview-v7-24+//recyclerview-v7-24+-.jar
      file:/C:/Users/WinDows7/AppData/Local/Android/sdk/extras/android/m2repository/com/android/support/recyclerview-v7-24+//recyclerview-v7-24+-.pom
      file:/C:/Users/WinDows7/AppData/Local/Android/sdk/extras/android/m2repository/com/android/support/recyclerview-v7-24+//recyclerview-v7-24+-.jar
      file:/C:/Program Files/Android/Android Studio/gradle/m2repository/com/android/support/recyclerview-v7-24+//recyclerview-v7-24+-.pom
      file:/C:/Program Files/Android/Android Studio/gradle/m2repository/com/android/support/recyclerview-v7-24+//recyclerview-v7-24+-.jar
      https://jcenter.bintray.com/com/android/support/recyclerview-v7-24+//recyclerview-v7-24+-.pom
      https://jcenter.bintray.com/com/android/support/recyclerview-v7-24+//recyclerview-v7-24+-.jar
      https://dl.google.com/dl/android/maven2/com/android/support/recyclerview-v7-24+//recyclerview-v7-24+-.pom
      https://dl.google.com/dl/android/maven2/com/android/support/recyclerview-v7-24+//recyclerview-v7-24+-.jar
  Required by:
      project :app
> Could not find com.android.support:cardview-v7-26+:.
  Searched in the following locations:
      file:/C:/Users/WinDows7/AppData/Local/Android/sdk/extras/m2repository/com/android/support/cardview-v7-26+//cardview-v7-26+-.pom
      file:/C:/Users/WinDows7/AppData/Local/Android/sdk/extras/m2repository/com/android/support/cardview-v7-26+//cardview-v7-26+-.jar
      file:/C:/Users/WinDows7/AppData/Local/Android/sdk/extras/google/m2repository/com/android/support/cardview-v7-26+//cardview-v7-26+-.pom
      file:/C:/Users/WinDows7/AppData/Local/Android/sdk/extras/google/m2repository/com/android/support/cardview-v7-26+//cardview-v7-26+-.jar
      file:/C:/Users/WinDows7/AppData/Local/Android/sdk/extras/android/m2repository/com/android/support/cardview-v7-26+//cardview-v7-26+-.pom
      file:/C:/Users/WinDows7/AppData/Local/Android/sdk/extras/android/m2repository/com/android/support/cardview-v7-26+//cardview-v7-26+-.jar
      file:/C:/Program Files/Android/Android Studio/gradle/m2repository/com/android/support/cardview-v7-26+//cardview-v7-26+-.pom
      file:/C:/Program Files/Android/Android Studio/gradle/m2repository/com/android/support/cardview-v7-26+//cardview-v7-26+-.jar
      https://jcenter.bintray.com/com/android/support/cardview-v7-26+//cardview-v7-26+-.pom
      https://jcenter.bintray.com/com/android/support/cardview-v7-26+//cardview-v7-26+-.jar
      https://dl.google.com/dl/android/maven2/com/android/support/cardview-v7-26+//cardview-v7-26+-.pom
      https://dl.google.com/dl/android/maven2/com/android/support/cardview-v7-26+//cardview-v7-26+-.jar
  Required by:
      project :app
> Could not find com.android.support:design-v7-26+:.
  Searched in the following locations:
      file:/C:/Users/WinDows7/AppData/Local/Android/sdk/extras/m2repository/com/android/support/design-v7-26+//design-v7-26+-.pom
      file:/C:/Users/WinDows7/AppData/Local/Android/sdk/extras/m2repository/com/android/support/design-v7-26+//design-v7-26+-.jar
      file:/C:/Users/WinDows7/AppData/Local/Android/sdk/extras/google/m2repository/com/android/support/design-v7-26+//design-v7-26+-.pom
      file:/C:/Users/WinDows7/AppData/Local/Android/sdk/extras/google/m2repository/com/android/support/design-v7-26+//design-v7-26+-.jar
      file:/C:/Users/WinDows7/AppData/Local/Android/sdk/extras/android/m2repository/com/android/support/design-v7-26+//design-v7-26+-.pom
      file:/C:/Users/WinDows7/AppData/Local/Android/sdk/extras/android/m2repository/com/android/support/design-v7-26+//design-v7-26+-.jar
      file:/C:/Program Files/Android/Android Studio/gradle/m2repository/com/android/support/design-v7-26+//design-v7-26+-.pom
      file:/C:/Program Files/Android/Android Studio/gradle/m2repository/com/android/support/design-v7-26+//design-v7-26+-.jar
      https://jcenter.bintray.com/com/android/support/design-v7-26+//design-v7-26+-.pom
      https://jcenter.bintray.com/com/android/support/design-v7-26+//design-v7-26+-.jar
      https://dl.google.com/dl/android/maven2/com/android/support/design-v7-26+//design-v7-26+-.pom
      https://dl.google.com/dl/android/maven2/com/android/support/design-v7-26+//design-v7-26+-.jar
  Required by:
      project :app

3 个答案:

答案 0 :(得分：1)

您的代码应该从未运作过。依赖项不正确。

implementation 'com.android.support:appcompat-v7-26.+'
implementation "com.android.support:recyclerview-v7-26.+"
implementation "com.android.support:design-26.+"

应该是

implementation 'com.android.support:appcompat-v7:26.+'
implementation "com.android.support:recyclerview-v7:26.+"
implementation "com.android.support:design:26.+"

答案 1 :(得分：0)

正如最新的gradle版本adjustSize()中所提到的，您应该避免使用动态依赖项，因此请使用最新版本号替换您的依赖项：

    compile 'com.android.support:appcompat-v7-26+'
    compile 'com.android.support.constraint:constraint-layout:1.0.2'
    compile 'com.android.support:recyclerview-v7-24+'
    compile 'com.android.support:cardview-v7-26+'
    implementation 'com.android.support:design-v7-26+'

然后你可以按照这个version，在这里我已经用上面提到的步骤解决了这个错误。即使之后，如果它没有得到解决，请从终端窗口粘贴您的logcat。我很乐意在这里提供帮助。

感谢。

答案 2 :(得分：0)

您不应该使用以26+或24+结尾的库。您应该指定您的版本。试试这个代码，它正常工作（我已经测试过了）

apply plugin: 'com.android.application'


allprojects {
    repositories {
        jcenter()
        google()
    }
}

android {
    compileSdkVersion 26
    buildToolsVersion "26.0.2"
    defaultConfig {
        applicationId "com.planner.reemshams.projectplannerpro"
        minSdkVersion 17
        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'
        }
    }
}

dependencies {
    implementation 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-v7:26.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    implementation 'com.android.support:recyclerview-v7:26.1.0'
    implementation 'com.android.support:cardview-v7:26.1.0'
}
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