Dear Abdelwahed,

I think its problem occur from loading view file

You should first load that file which you want that xmlid in other xml file.

We must define all the XML file inside __openerp__.py file so here you can change the sequence of loading file.

Like inside __openerp__.py

{

'data': [ 'Here sequence is main so here write first file name that xmlid use in other file', 'after other file name where we can use previous file xmlid']

}

I think you understand if any problem then inform me.

Thanks & Regards

Ankit H Gandhi