Hello,
I'm trying to develop a new apps at Odoo 15 env, when I came to create a security groups for users an error happened while applying these update :
odoo.tools.convert.ParseError: while parsing /home/yaser/work15/library/library_app/security/library_security.xml:4, somewhere inside....
the code is :
 
 
  
  
   Manager
             ref="base.module_category_services_library "/>
             eval="[(4, ref('base.group_user'))]"/>
             eval="[(4, ref('base.user_root')),
                 (4, ref('base.user_admin'))]"/>
  
 
 
Any help?
 
                        
This might be due to any syntax issue on the xml file on which you defined the usergroup.
You can refer to the blog below.
https://www.cybrosys.com/blog/how-to-create-security-groups-in-odoo-15