Flutter dependency issue with Kotlin and Gradle

Question

I'm having an issue building an app for Android that runs fine on iOS. The error reads:

* What went wrong: A problem occurred evaluating project ':app'.

Could not find method classpath() for arguments [org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version] on object of type org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHandler.

Here are my dependencies in the build.gradle in the app module:

dependencies {
classpath 'org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'}

Thank you for your help!

shkschneider · Accepted Answer · 2019-01-10 14:19:57Z

2

To include a var inside a string, you need double quotes:

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

Just as you can see here: https://kotlinlang.org/docs/reference/using-gradle.html

answered Jan 10, 2019 at 14:19

shkschneider

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Louis Jacomet · Accepted Answer · 2019-01-10 13:46:06Z

-1

The classpath configuration is a special one defined at the buildscript level which allows to tweak the classpath of the build script.

So in order to add the gradle-kotlin-plugin, you need to do the following:

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

See the relevant documentation for more details.

answered Jan 10, 2019 at 13:46

Louis Jacomet

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