Gradle sync failed: Cause: com/android/build/gradle/BaseExtension

Question

I downloaded a project from github and then tried to build it.

But, once Gradle ran, the event log of Android Studio (2.3.3) showed me this:

Gradle sync failed: Cause: com/android/build/gradle/BaseExtension
Consult IDE log for more details (Help | Show Log)

And also

Error:(18, 0) com/android/build/gradle/BaseExtension
<a href="openFile:C:\Users\Gustavo\AndroidStudioProjects\simpletask-android\app\build.gradle">Open File</a>

It seems like Gradle couldn't find Kotlin in the right spot but I don't know how to change this.

Kotlin is installed and updated (to version 1.1.3).

It is also configured as a dependency of the "app" module in the project.

But, as the last image shows, the version of the external library that the project sees is 1.0.6 and not 1.1.3.

Is that the problem? How can I change this external library?

Answer 1

In my case, I had to put everything into app/build.gradle (and not the root build.gradle):

    dependencies {
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }

If I put the block above in the root build.gradle, I get the same error as you...