hi
the above mentioned was the error raise while click on the print button on any form in openerp v7.0
how can be solve this..
I just installed the module "base_rml2pdf_extra_tags" as a dependend module for an other module installations.
After that i removed the module "base_rml2pdf_extra_tags" from the addons folder and restart the openerp the error will not be shown. So the module base_rml2pdf_extra_tags is not supported by OpenERP 7.0 .? Or any other module instead of it.