Getting Error Code from Blogger

I'm getting this error message in Blogger when I try to save after adding the migration code:

Error parsing XML, line 887, column 10: The processing instruction target matching "[xX][mM][lL]" is not allowed.

How can I fix this? Thanks

@cberryonline
This forum topic will help you to resolve this issue https://rtcamp.com/support/topic/blooger-dont-accept-the-new-template/#post-37