Illegal Characters not Allowed in the "sqlContext.xml: File

The sqlContext.xml file is a config file which contains the connection string to the backend database and the username/password to the database. Because it is in XML format, it cannot contain illegal XML characters. 

Illegal XML characters are &, < and > (as well as " or ' in attributes)

If you want to use these characters, it is possible to replace these characters with the appropriate escape keys.

See below for the illegal xml character and it's escape replacement keys.