Cannot upgrade to latest support library Android Studio

问题

I have installed the latest version of Android Support Repository (47.0.0), but I can't build my project because of the following error.

ERROR

Here is my build.gardle code

compileSdkVersion 26
buildToolsVersion '26.0.1'
defaultConfig {
    applicationId "ir.dones.dones"
    minSdkVersion 17
    targetSdkVersion 26
    versionCode 1
    versionName "1.0"
    testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    vectorDrawables.useSupportLibrary= true
}

buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    }
}


compileOptions {
    sourceCompatibility JavaVersion.VERSION_1_8
    targetCompatibility JavaVersion.VERSION_1_8
}

dependencies

implementation fileTree(include: ['*.jar'], dir: 'libs')
androidTestImplementation('com.android.support.test.espresso:espresso-core:2.3-alpha', {
    exclude group: 'com.android.support', module: 'support-annotations'
})
implementation 'com.android.support:support-compat:26.0.0'
implementation 'com.android.support:support-v4:26.0.0'
implementation 'com.android.support:appcompat-v7:26.0.0'
implementation 'com.android.support:support-core-utils:26.0.0'
implementation 'com.android.support:design:26.0.0'
implementation 'com.android.support:support-vector-drawable:26.0.0'
implementation 'com.android.support:recyclerview-v7:26.0.0'
implementation 'com.android.support:cardview-v7:26.0.0'
implementation 'com.getbase:floatingactionbutton:1.10.1'
implementation 'com.google.code.gson:gson:2.8.1'
implementation 'de.hdodenhof:circleimageview:2.1.0'
implementation "at.blogc:expandabletextview:1.0.3"
testImplementation "junit:junit:4.12"

I have done what is suggested by Android studio to upgrade the support libraries to 26.0.2 version but as I know there is no such version released.

Android Studio suggestion

Doing so again I hit the same error.I tried google() and maven() in repositories but didn't help either. Changing support version to 26.+ is the only way I can build the project, but this way I can't use new features like fonts in Xml for Api<26.

I'm using Android studio Canary 8.

Any help would be appreciated.

回答1:

Check your build.gradle. You should have google repo:

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

回答2:

It was a proxy issue after all.I had to replace the default lines in gradle.properties with this line:

org.gradle.jvmargs=-DsocksProxyHost=127.0.0.1 -DsocksProxyPort=9090

It took me a week to find it out.thanks to those who answered or commented and tried to help.

回答3:

From the error none of the libraries can be resolved. So I think the problem is with your maven not being able to get access to the repositories. This can be because of bad internet or not being configured correctly.

I would check the maven repository configurations:

allprojects {
    repositories {
        jcenter()
        mavenLocal()

or

try this:

repositories {
   jcenter {
       url "http://jcenter.bintray.com/"
   }
}

来源：https://stackoverflow.com/questions/45410761/cannot-upgrade-to-latest-support-library-android-studio