Issue
I am literally just starting app development for the first time and the default project when I create a new one will not build. I have tried looking on Google and SO for these errors and have found some but their solutions do not work. Given that I have not edited the files at all, I presume it is an issue with Android Studio not being setup properly but can't figure it out. The errors are as follows:
Error:Failed to resolve: com.android.support:support-v4:25.2.0
Install Repository and sync project
Open File
Show in Project Structure dialog
Error:(23, 24) Failed to resolve: com.android.support.test.espresso:espresso-core:2.2.2
Install Repository and sync project
Show in File
Show in Project Structure dialog
Error:(26, 13) Failed to resolve: com.android.support:appcompat-v7:26.+
Install Repository and sync project
Show in File
Show in Project Structure dialog
The build.gradle file it points to is as follows:
apply plugin: 'com.android.application'
android {
compileSdkVersion 26
buildToolsVersion "26.0.0"
defaultConfig {
applicationId "com.extremecomputing.spotzz"
minSdkVersion 17
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.+'
compile 'com.google.android.gms:play-services-maps:11.0.1'
testCompile 'junit:junit:4.12'
}
I have tried with a previous project that I had created a few things I found online. Such as they had recommended the +
in the version could cause unpredictable builds, but that wasn't it. One had recommended a few compile lines in the dependencies
section, it changed the errors for a moment saying I needed to download something, I did then it went back to the original errors. I also have tried to make sure that the SDK tools are updated, and they appear to be. Any suggestions would be greatly appreciated.
Solution
Try this:
- in Android Studio, open Tools -> Android -> SDK Manager
- under tab "SDK Tools" un-check the libraries causing problems
- click "apply" to uninstall them
- re-check the same libraries click "apply" to reinstall them
- close SDK Manager and run Gradle sync / build
Answered By - Ashwani
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