Android studio v2.2.2 error(27,17) failed to resolve junit:junit4.12

Question

I have searched everywhere for this answer and tried multiple ways to fix this but as I\'m new to this IDE I need a little help.

All I have done is created an empty

Answer 1

Remove the unwanted libraries from the build.gradle,

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'
})
testCompile 'junit:junit:4.12'

and also

testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

Answer 2

just remove :

androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
    exclude group: 'com.android.support', module: 'support-annotations'
})

Answer 3

configure proxy then you can able to download

javax.inject:javax.inject:1
javax.annotation:javax.annotation-api:1.2
com.google.code.findbugs:jsr305:2.0.1
org.hamcrest:hamcrest-library:1.3
org.hamcrest:hamcrest-integration:1.3
com.squareup:javawriter:2.1.1

Answer 4

Don't remove the libraries that is not the way to do. This issue due to your internet connection. Set proxy connection in your gradle.properties file

systemProp.http.proxyHost=hosturl
org.gradle.jvmargs=-Xmx1536m
systemProp.http.proxyPort=portnumber
systemProp.http.proxyUser=username
systemProp.http.proxyPassword=password

systemProp.https.proxyHost=hosturl
systemProp.https.proxyPort=portnumber
systemProp.https.proxyUser=username
systemProp.https.proxyPassword=password

Answer 5

Add mavenCentral() to your repositories under jcenter() JCenter doesn't have those dependencies that you require.

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Edit: Also couldn't resolve the dependencies because of the proxy filtering traffic from and to maven.