"relative links" Error when verifying/uploading infopath 2010 form template

Got the following error message when trying to deploy an infopath 2010 form template with code via central administration to production:

“Relative links to Data Connection Libraries located in different SharePoint Site Collections are not supported.”


Google search found the following blog 

Relative Links” Error Message when verifying an InfoPath Form Template by Rob Finney

In summary, the url to the SharePoint site needs to be exactly the same, including upper/lower cases, in the data connection settings. So to fix, just delete the offending data connection, add it back, then convert it to data collection file, at this step, ensure the url is correct and the capitalization of each letter is exact the same as the other data connections.