Kotlin version for Gradle build differs from version in IDE plugin

Hi everyone! I'm new to Kotlin and Android development. I'm using Android Studio 3.0. Today I encountered a strange error when building the project. It says:\n\n"kotlin version that is used for building with gradle (1.1.2-5) differs from the one bundled into the IDE plugin (1.1.2-4)"\n\nI don't understand what this means. It seems like all settings are standard. Here is my build.gradle (project):\n\n```kotlin\nbuildscript {\n ext.kotlin_version = '1.1.2-5'\n repositories {\n google()\n jcenter()\n }\n dependencies {\n classpath 'com.android.tools.build:gradle:3.0.0'\n classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"\n }\n}\n```\n\nAnd the module build.gradle:\n\n```kotlin\napply plugin: 'com.android.application'\napply plugin: 'kotlin-android'\napply plug