error in build.gradle.kts script using extra property

Question

below is a small (build.gradle.kts) script which gives at line 9 (the classpath line) the error : Cannot get property 'kotlinVersion' on extra properties extension as it does not exist

buildscript {
    extra["kotlinVersion"] = "1.2.70"

    repositories {
        jcenter()
    }

    dependencies {
      classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:${extra["kotlinVersion"]}")
    }
}

I do not understand why this error occur.

please add your actual solution as an answer and don't accept answers, that are basically the same to what you wrote in your question. This doesn't help anyone else that may have the same problem as you... — Roland
– Roland, Commented Feb 18, 2020 at 9:43

Roman Savelev · Accepted Answer · 2020-06-07 14:44:19Z

5

You must use "project.extra[...]" instead of "extra[...]"

    buildscript {
            extra["kotlin_version"] = "1.3.72"

            repositories {
                jcenter()
            }

            dependencies {
                classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:${project.extra["kotlin_version"]}")
            }
        }

answered Jun 7, 2020 at 14:44

Roman Savelev

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Comments

Maksym V. · Accepted Answer · 2020-02-15 14:05:52Z

4

+50

This works for me:

buildscript {
    extra["kotlin_version"] = "1.3.61"

    repositories {
        google()
        jcenter()

    }
    dependencies {
        classpath("com.android.tools.build:gradle:3.5.3")
        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:${extra["kotlin_version"]}")
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        google()
        jcenter()

    }
}

answered Feb 15, 2020 at 14:05

Maksym V.

2,95721 silver badges29 bronze badges

8 Comments

Emile Achadde Over a year ago

gradlew build gives : FAILURE: Build failed with an exception. * Where: Build file '/home/achadde/sources/kotlin-minichain/build.gradle.kts' line: 11 * What went wrong: Cannot get property 'kotlin_version' on extra properties extension as it does not exist * Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights. * Get more help at help.gradle.org BUILD FAILED in 513ms

Emile Achadde Over a year ago

I moved your script to an other directory and it does work ! I do not understand why these different behaviors

Maksym V. Over a year ago

In what directory was it? And what is the new one?

Emile Achadde Over a year ago

They are two parallel directories with the same internal structure : the good one : /home/achadde/sources/ipfs-api-kotlin the bad one : /home/achadde/sources/kotlin-minichain Do you have an idea ?

Roland Over a year ago

@EmileAchadde It took me a while to understand what is the difference of the answer in regards to the question... while I do not want Max Aves to lose any points... how can you accept an answer, that doesn't differ in what you have in your question???? Or did I miss something?

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