Return code is: 409, ReasonPhrase: Conflict. github maven packages

[j143]

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-deploy-plugin:2.8.2:deploy (default-deploy)
 on project systemds: Failed to deploy artifacts: Could not transfer artifact org.apache.systemds:systemds:jar:2.1.0 
from/to github (https://maven.pkg.github.com/j143/systemds): Failed to transfer file: 
https://maven.pkg.github.com/j143/systemds/org/apache/systemds/systemds/2.1.0/systemds-2.1.0.jar.
+ Return code is: 409, ReasonPhrase: Conflict. 

Solution:
The package with the same version already exists.

Try deleting the package in the UI.

1. go to package settings
   

2. In the Manage versions, delete the conflicting package!
   

Originally posted by @j143 in #99 (comment)