Inaccurate Scalaz-deriving Errors

[j-potts]

Hey guys,

Looks like there may be some compatibility issues with the latest scalaz-deriving and bloop. Under my multi-project mono-repo I'm using the following libs:

• Bloop v1.4.8-19-4d9f966b
• scala 2.12.10
• scalaz-deriving 3.0.0-M2
• scalaz 7.3.3
• pureconfig 0.13.0

The issue I'm facing is that using those libs together will cause persistent errors to show up, despite not showing up when compiling within SBT. Here a code snippet as an example...

import pureconfig.ConfigReader
import scalaz.annotation.deriving

@deriving(ConfigReader)
final case class Foo(
    name: String,
    phone: String)

This will result in...

could not find implicit value for parameter F: scalaz.DerivingProducts[pureconfig.ConfigReader]

This issue seems to prevent Metals and Bloop from properly compiling dependent files, and breaks IDE functionality downstream.

Thanks for the help!

[tgodzik]

Thanks for reporting! Were you able to run with SBT BSP as suggested on Discord? I am not too familiar with pureconfig or scalaz-deriving. Might this be indeed an issue that macro annotation reads configuration from the classpath at compile-time?

[pjrt]

I found the underlying issue to be a bug around sbt bloopInstall.

#1504

That specific scalaz-deriving functionality depends on resource files and they aren't being shared properly between projects.

[tgodzik]

Do you have maybe some sample project I can take a look at ?