Error: "Schema is invalid"

Description

Merge is failing with the error “Schema is Invalid” for metadata members.

Cause

This is due to an invalid structure. If there are any special characters like '>', '<', '|', '=', and the string(length =7) is considered a GIT conflict (a GIT behavior), which will cause the Merge to fail.

Resolution

To prevent this, we recommend that you limit the previously mentioned unique characters to less than 7.

For example, if you observe ">>>>>>>" character string(length =7) in any of the Apex Class files or any metadata member files, then update it to less than 7 in the branch itself and re-run the Merge operation.