The content of element type "class" must match


hello everybody, i don’t understand why i have this error, can someone please help me to solve it.
they tell me that: The content of element type “class” must match "(meta,subselect?,cache?,synchronize,comment?,tuplizer*,(id|composite-id),discriminator?,natural-id?,(version|timestamp)?,(property|many-to-one|one-to-one|component|dynamic-component|properties|any|map|set|list|bag|idbag|array|primitive-array),((join,subclass*)|joined-subclass*|union-subclass*),loader?,sql-insert?,sql-update?,sql-delete?,filter*,fetch-profile*,resultset*,(query|sql-query)*)".**
Thank you in advance.

There is a typo, it is <property> not <proprety>