When I use com.android.support:appcompat-v7:28.+
in my project's build.gradle
(module) it works without any error. But when I just use com.android.support:appcompat-v7:28
, just without .+
, it gives me an error:
Failed to resolve: com.android.support:appcompat-v7:28.0
Just without the .+
end of it. I added maven before but the result was the same. Any idea to solve it?
Ensure that your buildToolsVersion version tallies with your app compact version.
In order to find both installed compileSdkVersion and buildToolsVersion go to Tools > SDK Manager. This will pull up a window that will allow you to manage your compileSdkVersion and your buildToolsVersion.
To see the exact version breakdowns ensure you have the Show Package Details checkbox checked.
android {
compileSdkVersion 28
buildToolsVersion "28.0.3" (HERE)
defaultConfig {
applicationId "com.example.truecitizenquiz"
minSdkVersion 14
targetSdkVersion 28
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-v7:28.0.0' (HERE)
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'
}
Add the following code on build.gragle (project) for adding Google maven repository
allprojects {
repositories {
...
maven {
url 'https://maven.google.com/'
name 'Google'
}
...
}
}
Run
gradlew -q app:dependencies
It will remove what is wrong.
my problem was just network connection. using VPN solved the issue.
As @Sourabh already pointed out, you can check in the Google Maven link what are the packages that Google has listed out.
If you, like me, are prompted with a similar message to this Failed to resolve: com.android.support:appcompat-v7:28.0
, it could be that you got there after upgrading the targetSdkVersion
or compileSdkVersion
.
What is basically happening is that the package is not being found, as the message correctly says. If you upgraded the SDK, check the Google Maven, to check what are the available versions of the package for the new SDK version that you want to upgrade to.
I had these dependencies (on version 27):
implementation 'com.android.support:appcompat-v7:27.1.1'
implementation 'com.android.support:design:27.1.1'
implementation 'com.android.support:recyclerview-v7:27.1.1'
implementation 'com.android.support:cardview-v7:27.1.1'
implementation 'com.android.support:support-v4:27.1.1'
And I had to change the SDK version and the rest of the package number:
implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'com.android.support:design:28.0.0'
implementation 'com.android.support:recyclerview-v7:28.0.0'
implementation 'com.android.support:cardview-v7:28.0.0'
implementation 'com.android.support:support-v4:28.0.0'
Now the packages are found and downloaded. Since the only available package for the 28 version of the SDK is 28.0.0
at the moment of writing this.
in build.gradle , the version of bellow line should be same
implementation 'com.android.support:appcompat-v7:28.0.0-alpha1'
implementation 'com.android.support:design:28.0.0'
some guys who still might have the problem like me (FOR IRANIAN and all the coutries who have sanctions) , this is error can be fixed with proxy
i used this free proxy for android studio 3.2
https://github.com/freedomofdevelopers/fod
just to to Settings (Ctrl + Alt + S)
and search HTTP proxy
then check Manual proxy configuration
then add fodev.org
for host name
and 8118
for Port number
implementation 'com.android.support:appcompat-v7:28.0'
implementation 'com.android.support:support-media-compat:28.0.0'
implementation 'com.android.support:support-v4:28.0.0'
All to add
Source: Stackoverflow.com