无法解决：Android Studio中的com.android.support:design:27

Question

I have a this two error in android studio. How to fix this error.

Error:(27, 13) Failed to resolve: com.android.support:design:27.+
    <a href="install.m2.repo">Install Repository and sync project</a><br><a href="openFile:D:/android project/My` `Projects/MyApplication2/app/build.gradle">Show in File</a><br><a href="open.dependency.in.project.structure">Show in Project Structure dialog</a>

and

Error:(26, 13) Failed to resolve: com.android.support:appcompat-v7:27.+
<a href="install.m2.repo">Install Repository and sync project</a><br><a href="openFile:D:/android project/My Projects/MyApplication2/app/build.gradle">Show in File</a><br><a href="open.dependency.in.project.structure">Show in Project Structure dialog</a>

This is my dependencies code

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-v7:27.+'
    compile 'com.android.support:design:27.+'
    compile 'com.android.support.constraint:constraint-layout:1.0.2'
    testCompile 'junit:junit:4.12'
}

How to fix this error

Answer 1

To use support libraries starting from version 26.0.0 you need to add Google's Maven repository to your project's build.gradle file.

1. Open the build.gradle file for your application.
2. Make sure that the repositories section includes a maven section with the " https://maven.google.com " endpoint. For example:

Example:

allprojects {
    repositories {
        jcenter()
        maven {
            url "https://maven.google.com"
        }
    }
}

For Android Studio 3.0.0 and above:

allprojects {

    repositories {
        jcenter()
        google()
    }
}