android - 在 gradle 文件中更新我的应用程序版本的问题

Question

所以我使用的是 Nougat 版本的 API 25，我想将我的应用程序更新到最近新推出的版本 ApI27。但每当我更新到 27.0.1 ，这个错误:

"Error:Failed to resolve: com.android.support:appcompat-v7.27.0.1"

不断发生。我不知道我做错了什么，我整天都在努力寻找解决方案。非常感谢您在这件事上的时间和帮助。

哦，我确定我已经下载了 SDK 版本和 SDK 管理器中已经需要的所有文件。

我的 Gradle 文件(模块应用程序):

apply plugin: 'com.android.application'


android {
compileSdkVersion 27
buildToolsVersion '27.0.1'
defaultConfig {
    applicationId "org.poream.dejaview"
    minSdkVersion 15
    targetSdkVersion 27
    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 'com.google.firebase:firebase-storage:11.6.0'
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:design:27.0.1'
compile 'com.google.android.gms:play-services-maps:11.6.0'
compile 'com.android.support:appcompat-v7.27.0.1'
compile 'com.android.support:design:27.0.1'
compile 'com.google.android.gms:play-services-maps:11.6.0'
compile 'com.android.support:cardview-v7:27.0.1'
compile 'com.google.android.gms:play-services-location:11.6.0'
compile 'com.android.support.constraint:constraint-layout:1.0.2'
compile 'com.google.firebase:firebase-core:11.6.0'
compile 'com.google.firebase:firebase-database:11.6.0'
compile 'com.google.firebase:firebase-crash:11.6.0'
compile 'com.google.firebase:firebase-auth:11.6.0'
compile 'com.android.support:support-v4:27.0.1'
compile 'com.android.support:recyclerview-v7:27.0.1'
compile 'com.google.android.gms:play-services-auth:11.6.0'
testCompile 'junit:junit:4.12'
}

apply plugin: 'com.google.gms.google-services'

我的 Gradle 文件(项目):

// Top-level build file where you can add configuration options common to 
all sub-projects/modules.

buildscript {
repositories {

    mavenCentral()
    jcenter()
    google()
}
dependencies {

    classpath 'com.android.tools.build:gradle:3.0.0'

    // NOTE: Do not place your application dependencies here; they belong
    // in the individual module build.gradle files
    classpath 'com.google.gms:google-services:3.1.0'
}
}

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

task clean(type: Delete) {
delete rootProject.buildDir
}

Answer 1

有一个错字 ( . 而不是 : )

compile 'com.android.support:appcompat-v7.27.0.1'

采用:

compile 'com.android.support:appcompat-v7:27.0.1'