CATS-Core | Core implementation of CATS , i.e | Awesome List library

map on Nested works if there is an instance of Functor for both types.
And the Functor of Future requires and implicit ExecutionContext in scope, since all methods in Future requires it.

So if you add a line like this (or any other form of putting an implicit ec in scope):

In Scala 2.13 partial unification is enabled by default and -Ypartial-unification flag has been removed by Partial unification unconditional; deprecate -Xexperimental #6309

Partial unification is now enabled unless -Xsource:2.12 is specified. The -Ypartial-unification flag has been removed and the -Xexperimental option, which is now redundant, has been deprecated.

thus the compiler no longer accepts -Ypartial-unification.

So I managed to fix the problem with the maven-shade-plugin. I added following piece of code to my pom.xml file:

I tried reproducing the issue in my local and it seems like there is a conflict the jackson imports in the StreamingProducer class. Could you please try the below imports and let me know how it goes? Just replace lines 8 & 9

Put libraryDependencies ++= dependencies into settings.

global, core and serversupervisor are three different subprojects. They can have different library dependencies. Currently you add them to global but not to core and serversupervisor.

Alternatively you can move libraryDependencies ++= dependencies to Global or ThisBuild scope rather than specific subproject scope. You can add at top

You use this in the Compile scope (i.e. sources in src/main), so you need to remove % "test" from the ScalaCheck dependency. Or move that source to the Test scope (i.e. in src/test)

First make sure it works when running sbt it:test or if you use sub-modules sbt module/it:test

If it doesn't sbt has this great resource: https://www.scala-sbt.org/1.x/docs/Testing.html#Integration+Tests

As a template for a working setup, a build.sbt:

Try to change versions to

StateT is in cats-core