Run JUnit tests in Android studio - android-studio

Question

I created new Android Project and tried to run tests (JUnit) and had follow result:
15:28:53: Executing external tasks 'cleanTest test --tests com.binomv.rimidalv.tt.*'...
FAILURE: Build failed with an exception.
What went wrong:
A problem occurred configuring root project 'TT'.
Could not resolve all dependencies for configuration ':classpath'.
Artifact 'kxml2.jar (net.sf.kxml:kxml2:2.3.0)' not found.
Searched in the following locations:
https://jcenter.bintray.com/net/sf/kxml/kxml2/2.3.0/kxml2-2.3.0.jar
Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
BUILD FAILED
Total time: 0.512 secs
Artifact 'kxml2.jar (net.sf.kxml:kxml2:2.3.0)' not found.
Searched in the following locations:
https://jcenter.bintray.com/net/sf/kxml/kxml2/2.3.0/kxml2-2.3.0.jar
But if i use test through device - it is ok.
Thank you.
-----UPDATE-----
build.gradle file:
apply plugin: 'com.android.application'
android {
compileSdkVersion 22
buildToolsVersion "22.0.1"
defaultConfig {
applicationId "com.binomv.rimidalv.tt"
minSdkVersion 14
targetSdkVersion 22
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:22.0.0'
compile 'com.android.support:support-v4:22.0.0'
}
----- SOLUTION -----
You should remove "~/.gradle" folder. Android Studio recreate it.