Message
element must be a full URI
Explanation
The specified value is not a full URI, or is mal-formed.
Solution
If this is a link to a web page, make sure to include the "http://" at the beginning. If you've already done that, it's possible that the URI contains an invalid character. A complete list of acceptable characters can be found in RFC 3986.
If this is a mailing address, make sure to include the "mailto:" at the beginning.
The data in link elements must begin win an IANA-registered URI scheme
Not clear? Disagree?
You might be able to find help in one of these fine resources.
