Duplicate class kotlin.reflect.KClasses

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1

Hi All,
Today surprise from gradle:
Duplicate class kotlin.reflect.KClasses found in modules jetified-kotlin-reflect-1.1.3.jar (org.jetbrains.kotlin:kotlin-reflect:1.1.3) and jetified-kotlin-stdlib-1.3.70.jar (org.jetbrains.kotlin:kotlin-stdlib:1.3.70)
I didn’t changed anything in my project, maybe some refresh happened.
Opsys: Debian Linux, AS: 3.6.1, gradle version: 5.6.4.

There is a suggestion in error message, but unfortunately I cannot find this class in my project navigate class menu.

I tried to remove gradle cache, ./gradlew build --refresh-dependencies, FIle/Sync project with Gradle files, change to gradle 6.1.1, but no changes. A couple of days ago I could compile this. How can I eliminate this error?

2

I found the solution:
A couple of days ago they changed kotlin version to 1.3.70, but jackson (json objectmapper) wants to use old 1.1.3. That was the original problem. Maven can use newer lib automatically. But very interesting thing, AS used to notify me, when a library has a newer version than we use, except in jackson. I’ve used a very old version of jackson (2.9.1) and there is new 2.10.2, which references to kotlin 1.3.xx.