After upgrading an Umbraco installation from 3.0 to 4.7.1.1, I got the error:
[code]"The create dialog for "Media" does not match anything defined in the "~/umbraco/config/create/UI.xml" while trying to upload images.
 [/code]
To fix this, simply open UI.xml located in: /umbraco/config/create/
 Search for:
 [code]
 <nodetype alias="media"></nodetype>
 [/code]
and rename it to uppercase:
 [code]
 <nodetype alias="Media"></nodetype>
 [/code]
 Restart IIS and problem should be solved.
