Question

我启动了一个新的android应用项目，到目前为止，除了打开新项目外，什么都没做。初始构建失败，并且我收到以下错误消息。它告诉我安装支持存储库，但它已完全安装。（我是类人动物开发的新手，所以我不知道发生了什么事

Could not find any version that matches com.android.support:appcompat-v7:29.+.
Versions that do not match:
  - 26.0.0-alpha1
  - 25.3.1
  - 25.3.0
  - 25.2.0
  - 25.1.1
  - + 50 more
Searched in the following locations:
  - file:/home/corb/Android/Sdk/extras/m2repository/com/android/support/appcompat-v7/maven-metadata.xml
  - file:/home/corb/Android/Sdk/extras/m2repository/com/android/support/appcompat-v7/
  - file:/home/corb/Android/Sdk/extras/google/m2repository/com/android/support/appcompat-v7/maven-metadata.xml
  - file:/home/corb/Android/Sdk/extras/google/m2repository/com/android/support/appcompat-v7/
  - file:/home/corb/Android/Sdk/extras/android/m2repository/com/android/support/appcompat-v7/maven-metadata.xml
  - https://dl.google.com/dl/android/maven2/com/android/support/appcompat-v7/maven-metadata.xml
  - https://jcenter.bintray.com/com/android/support/appcompat-v7/maven-metadata.xml
  - https://jcenter.bintray.com/com/android/support/appcompat-v7/
Required by:
    project :app

Please install the Android Support Repository from the Android SDK Manager.
Open Android SDK Manager

build.gradle

apply plugin: 'com.android.application'

android {
    compileSdkVersion 29
    buildToolsVersion "29.0.0"
    defaultConfig {
        applicationId "com.example.finances"
        minSdkVersion 15
        targetSdkVersion 29
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:29.+'
    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
    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'
}

Answer 1

安装Android SDK分为两部分，即代码部分，您可以通过打开SDK管理器，突出显示SDK平台，选择要下载的版本并单击“应用”来下载。然后，有“平台工具”部分，您将在顶部突出显示“ SDK工具”，然后为与您下载的相同SDK版本选择Android SDK Build-Tools，然后单击“应用”。您说“它已经完全安装”了吗？

由于“版本不匹配”，Android应用无法构建

1 个答案: