Trying to add timber to Kotlin project results in multiple 'Unable to resolve dependency for...' Gradle errors - gradle

Question

I have added implementation 'com.jakewharton.timber:timber:4.7.1' to my Kotlin project and now I get the following Gradle errors:
Configuration 'compile' is obsolete and has been replaced with 'implementation' and 'api'.
It will be removed at the end of 2018. For more information see: http://d.android.com/r/tools/update-dependency-configurations.html
Unable to resolve dependency for ':app#debug/compileClasspath': Could not resolve com.jakewharton.timber:timber:4.7.1.
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Unable to resolve dependency for ':app#debugAndroidTest/compileClasspath': Could not resolve com.jakewharton.timber:timber:4.7.1.
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Unable to resolve dependency for ':app#debugUnitTest/compileClasspath': Could not resolve com.jakewharton.timber:timber:4.7.1.
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Unable to resolve dependency for ':app#release/compileClasspath': Could not resolve com.jakewharton.timber:timber:4.7.1.
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Unable to resolve dependency for ':app#releaseUnitTest/compileClasspath': Could not resolve com.jakewharton.timber:timber:4.7.1.
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Strangely though I can see it downloading as Gradle syncs:
I also tried adding timberkt but got a similar error.
My whole app/build.gradle file looks like this:
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'kotlinx-serialization'
android {
compileSdkVersion 26
defaultConfig {
applicationId "uk.co.davechambers.pegboard"
targetSdkVersion 26
minSdkVersion 21
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'
}
}
}
repositories {
google()
jcenter()
maven { url "https://kotlin.bintray.com/kotlinx" }
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
androidTestImplementation('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
implementation"org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
implementation 'com.android.support:appcompat-v7:26.0.0-beta2'
testImplementation 'junit:junit:4.12'
implementation 'com.android.support:design:26.0.0-beta2'
implementation 'com.android.support.constraint:constraint-layout:1.0.2'
implementation 'com.android.support:support-vector-drawable:26.0.0-beta2'
implementation 'com.jakewharton.timber:timber:4.7.1'
compile "org.jetbrains.anko:anko:$anko_version"
compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
compile "org.jetbrains.kotlinx:kotlinx-serialization-runtime:$serialization_version"
}
kotlin {
experimental {
coroutines "enable"
}
}
androidExtensions {
experimental = true
}
Clearly I'm doing something wrong. Can anybody point me in the right direction?

Answer 1

I added an additional Maven url to build.gradle (Module: app):
repositories {
google()
jcenter()
maven { url "https://kotlin.bintray.com/kotlinx" }
maven { url "http://jcenter.bintray.com"}
}
and to build.gradle (Project: projectName):
buildscript {
ext.kotlin_version = '1.2.40'
ext.anko_version = '0.10.5'
ext.serialization_version = '0.4.1'
repositories {
google()
jcenter()
maven { url "https://kotlin.bintray.com/kotlinx" }
maven { url "http://jcenter.bintray.com"}
}
.....
After that, everything worked.