I am getting a ValidateError when trying to install a custom module.

The complete error is the following

ERROR openerp3 openerp.tools.convert: Parse error in /openerp/addons/sim/sim_view.xml:39: 
except_osv: ('ValidateError', u'Error occurred while validating the field(s) arch: Invalid XML for View Architecture!')

The line is 39 and here is the view

<record model="ir.ui.view" id="buildings_form">
<field name="name">sim.buildings.form</field>
<field name="model">sim.buildings</field>
<field name="type">form</field>
<field name="arch" type="xml">
<form string="building">
<field name="name"/>
<field name="student_name"/>
<field name="father_name"/>
<field name="gender"/>
<field name="contact_no"/>
</form>
</field>
</record>

Do you see something strange with that XML? What else should I be looking at as the possible cause of the error.

Thanks! and by the way, I think the new idea of switching to Q&A is wonderful for the community, thanks!