How can I resolve a 'checksum mismatch' error when deploying to Nexus?

A checksum mismatch error indicates that the checksum of the artifact you're deploying doesn't match the checksum that Nexus expects. This can happen if the artifact was corrupted during transfer or if a different version of the artifact was already deployed. Re-build the artifact and try deploying it again. Verify the integrity of the artifact before deployment using checksum verification tools.