Movement Journal posting error

when i try to post movement journals in Ax 2012 i am facing following problem.

"Voucher: RSA-8052

Voucher RSA-8052
You must select a value in the MainAccount field in account structure: REPETTO.
The combination was not validated beyond the MainAccount financial dimension.
Update has been canceled because of an error.
Reported from company accounts rsa
You must select a value in the MainAccount field in account structure: REPETTO.
The combination was not validated beyond the MainAccount financial dimension.
Update has been canceled because of an error.
Reported from company accounts rsa
Posting has been canceled."

if i validate lines its displaying “Journal is Ok”

Thanks IN ADVANCE

You should mention valid Offset account and the dimensions as per your accounting structure.

Go to GL>setup> chart of accounts> Configure account structure find "REPETTO" to understand the valid accounts and dimensions.

If in case you are unable to figure out, put the screen shots of your movement journal and accounting structure forms. So that, someone can help you.