i tried out the new gradle 6.7 .. i run ./gradlew ...

# gradle

[bitkid]

i tried out the new gradle 6.7 .. i run ./gradlew init and create a kotlin multi module project. beside that the compile fails of the inital creation i have another question. init creates a buildSrc with kotlin.kotlin-common-conventions.gradle.kts, library-convention and application-convention. the plugin dependencies in these files don't contain a version so the plugin block for now looks like this

this. plugins {
kotlin("jvm")
jacoco
maven-publish
}

everything works so far .. the only thing is it uses an old kotlin version. how can i force it to 1.4.10 for everything (buildsrc and sub modules). as soon as i put a version somewhere (in my root build.gradle.kts as an example) i get the error message "Plugin request for plugin already on the classpath must not include a version". any ideas?

[bitkid]

if i try to set the plugin version in my build.gradle.kts in /buildSrc i get the message "The embedded-kotlin and kotlin-dsl plugins rely on features of Kotlin 1.3.72 that might work differently than in the requested version 1.4.10."

[Javier]

Is the repo public?

[Javier]

That warning is normal btw

[bitkid]

no .. can't make it public .. but it's basically the default which the ./gradle init spits out

[bitkid]

it uses by default kotlin 1.3.72 .. but i wan't it to use 1.4.10

[bitkid]

for everything

[Javier]

but 1.3.72 is used inside buildSrc and build.gradle.kts files, for "normal" projects it is being used the version you defined

[Javier]

can you share the snippet which is using the kotlin version?

[bitkid]

let me see if i can come up with something

[bitkid]

ah .. the initial build only fails if you call your project "kotlin" 🙂

[bitkid]

ok i have an easy reproducer (you need gradle 6.7 for that) .. just run ./gradle init in an empty directory with these options:

[bitkid]

$ ./gradlew init

Select type of project to generate:
  1: basic
  2: application
  3: library
  4: Gradle plugin
Enter selection (default: basic) [1..4] 2

Select implementation language:
  1: C++
  2: Groovy
  3: Java
  4: Kotlin
  5: Scala
  6: Swift
Enter selection (default: Java) [1..6] 4

Split functionality across multiple subprojects?:
  1: no - only one application project
  2: yes - application and library projects
Enter selection (default: no - only one application project) [1..2] 2

Select build script DSL:
  1: Groovy
  2: Kotlin
Enter selection (default: Kotlin) [1..2] 2

Project name (default: tmpGradle): test
Source package (default: test):

[bitkid]

there will be file list\src\main\kotlin\test\list\LinkedList.kt and in there put something which is a language feature of 1.4.10

[bitkid]

i use

[bitkid]

fun interface IntPredicate {
fun accept(i: Int): Boolean
}

[bitkid]

with 1.3.72 you'll get an error like this: Expecting function name or receiver type

[bitkid]

so where do i tell the whole thing to use 1.4.10 🙂

[Javier]

message has been deleted

[bitkid]

ok that works but i get tons of warnings .. can i safely ignore them? or where do they come from?

[bitkid]

$ ./gradlew build

> Task :buildSrc:compileKotlin
The `kotlin-dsl` plugin applied to project ':buildSrc' enables experimental Kotlin compiler features. For more information see <https://docs.gradle.org/6.7/userguide/kotlin_dsl.html#sec:kotlin-dsl_plugin>
w: Runtime JAR files in the classpath should have the same version. These files were found in the classpath:
    C:/Users/sadatgus/.gradle/wrapper/dists/gradle-6.7-bin/efvqh8uyq79v2n7rcncuhu9sv/gradle-6.7/lib/kotlin-stdlib-1.3.72.jar (version 1.3)
    C:/Users/sadatgus/.gradle/wrapper/dists/gradle-6.7-bin/efvqh8uyq79v2n7rcncuhu9sv/gradle-6.7/lib/kotlin-stdlib-common-1.3.72.jar (version 1.3)
    C:/Users/sadatgus/.gradle/wrapper/dists/gradle-6.7-bin/efvqh8uyq79v2n7rcncuhu9sv/gradle-6.7/lib/kotlin-stdlib-jdk7-1.3.72.jar (version 1.3)
    C:/Users/sadatgus/.gradle/wrapper/dists/gradle-6.7-bin/efvqh8uyq79v2n7rcncuhu9sv/gradle-6.7/lib/kotlin-stdlib-jdk8-1.3.72.jar (version 1.3)
    C:/Users/sadatgus/.gradle/wrapper/dists/gradle-6.7-bin/efvqh8uyq79v2n7rcncuhu9sv/gradle-6.7/lib/kotlin-reflect-1.3.72.jar (version 1.3)
    C:/Users/sadatgus/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib-jdk8/1.3.72/916d54b9eb6442b615e6f1488978f551c0674720/kotlin-stdlib-jdk8-1.3.72.jar (version 1.3)
    C:/Users/sadatgus/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-reflect/1.4.10/e2b3c6695eee6085e606d96d685396dce23a3a06/kotlin-reflect-1.4.10.jar (version 1.4)
    C:/Users/sadatgus/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib-jdk7/1.3.72/3adfc2f4ea4243e01204be8081fe63bde6b12815/kotlin-stdlib-jdk7-1.3.72.jar (version 1.3)
    C:/Users/sadatgus/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib/1.4.10/ea29e063d2bbe695be13e9d044dcfb0c7add398e/kotlin-stdlib-1.4.10.jar (version 1.4)
    C:/Users/sadatgus/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib-common/1.4.10/6229be3465805c99db1142ad75e6c6ddeac0b04c/kotlin-stdlib-common-1.4.10.jar (version 1.4)
w: Consider providing an explicit dependency on kotlin-reflect 1.4 to prevent strange errors
w: Some runtime JAR files in the classpath have an incompatible version. Consider removing them from the classpath

[Javier]

I am ignoring them because we can't upgrade kotlin dsl version

[Javier]

I think 6.8 will have Kotlin 1.4 (or 1.4.10), but it will not be 1.4.20 probably and 1.4.20 will be available (more or less), so I don't know if there is an strategy to solve this problem

[bitkid]

ok cool .. got everything working. thx! 🙂