Maven deploy and 422 Unprocessable Entity error

Hi guys,
I am trying to maven deploy my jar files using maven deploy command,
when I try to maven deploy it says:

FireflyLuciferin: Failed to deploy artifacts: Could not transfer artifact org.dpsoftware:FireflyLuciferin:jar:1.5.2 from/to github (https://maven.pkg.github.com/sblantipodi/firefly_luciferin): Transfer failed for https://maven.pkg.github.com/sblantipodi/firefly_luciferin/org/dpsoftware/FireflyLuciferin/1.5.2/FireflyLuciferin-1.5.2.jar 422 Unprocessable Entity -> [Help 1]

maven package works well and the artifact works well.

any idea on how to solve?
thanks.

fixed it using an lowercase artifactid.
artifactid must be lowercase!