apply plugin: 'com.android.application' android { compileSdkVersion 26 buildToolsVersion "29.0.2" defaultConfig { applicationId "com.example.administrator.myapplication" minSdkVersion 23 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(dir: 'libs', include: ['*.jar']) 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+' testCompile 'junit:junit:4.12' } 报错Failed to Find target with hash String 'android-26' in:E://SDK 我的Android SDK Tools26.1.1 Android platform version:API23:Android 6.0 revision3 Android SDK bulid-Tools:29.0.2
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