I am getting AssertionError: Element openerp has extra content: data, line 2
<p>I am trying to install a module, then I am getting below error.</p>

<p>AssertionError: Element openerp has extra content: data, line 2</p>

<p>What type of mistake I did for getting this error.</p>

<p>In which file I have to search for error rectify. I am using odoo9.</p>

<p>Files:</p>

<p><strong>This is my xmlfile.xml</strong>
    </p>

<pre><code>&lt;data&gt;

&lt;record model="ir.ui.view" id="10"&gt;

&lt;field name="name"&gt;model.name&lt;/field&gt;

&lt;field name="model"&gt;smp.model2&lt;/field&gt;

&lt;field name="arch" type="xml"&gt;

&lt;form&gt;

&lt;sheet&gt;

&lt;group colspan="4"&gt;

&lt;group colspan="2" cal="2"&gt;

&lt;field name="name"/&gt;

&lt;field name="active"/&gt;

&lt;/group&gt;

&lt;group colspan="2" cal="2"&gt;

&lt;field name="age"/&gt;

&lt;field name="sal"/&gt;

&lt;/group&gt;

&lt;group colspan="2" cal="2"&gt;

&lt;field name="adharid"/&gt;

&lt;field name="cell"/&gt;

&lt;/group&gt;

&lt;notebook colspan="4"&gt;

&lt;page string="extrainfo"&gt;&lt;field name="extrainfo"/&gt;&lt;/page&gt;

&lt;page string="temporaryaddress"&gt;&lt;field name="temporaryaddress"/&gt;&lt;/page&gt;

&lt;page string="perminantaddress"&gt;&lt;field name="perminantaddress"/&gt;&lt;/page&gt;

&lt;/notebook&gt; 

&lt;/group&gt;

&lt;/sheet&gt;

&lt;/form&gt;

&lt;/field&gt;

&lt;/record&gt;

&lt;record model="ir.ui.view" id="20"&gt;

&lt;field name="name"&gt;model.name&lt;/field&gt;

&lt;field name="model"&gt;smp.model2&lt;/field&gt;

&lt;field name="arch" type="xml"&gt;

&lt;tree&gt;

&lt;field name="name"/&gt;

&lt;field name="active"/&gt;

&lt;field name="age"/&gt;

&lt;field name="sal"/&gt;

&lt;field name="adharid"/&gt;

&lt;field name="cell"/&gt;

&lt;field name="extrainfo"/&gt;

&lt;field name="temporaryaddress"/&gt;

&lt;field name="perminantaddress"/&gt;

&lt;/tree&gt;

&lt;/field&gt;

&lt;/record&gt;

&lt;record model ="ir.actions.act_window" id="action_smp_model2"&gt;

&lt;field name="name"&gt;sampmodel&lt;/field&gt;

&lt;field name="res_model"&gt;smp.model2&lt;/field&gt;

&lt;field name="view_type"&gt;form&lt;/field&gt;

&lt;field name="viwe_mode"&gt;tree,form&lt;/field&gt;

&lt;/record&gt;

&lt;menuitem id="smp_main_menu1" name="smp model2"/&gt;

&lt;menuitem id="subsmp_main_menu1" name="Sub sample model"
   parent="smp_main_menu1"/&gt;

&lt;menuitem id="actsmp_main_menu" name="action smp model"
parent="subsmp_main_menu1" action="action_smp_model2"/&gt;

&lt;/data&gt;

&lt;/openerp&gt;
</code></pre>

<p><strong>This is my data.xml file</strong>
     </p>

<pre><code>&lt;data&gt;

&lt;record id='1' name="smp.model2"&gt;

&lt;filed name="name"&gt;name1&lt;/filed&gt;

&lt;filed name="age"&gt;23&lt;/filed&gt;

&lt;filed name="cell"&gt;123456434&lt;/filed&gt;

&lt;/record&gt;

&lt;record id='2' name="smp.model2"&gt;

&lt;filed name="name"&gt;name1&lt;/filed&gt;

&lt;filed name="age"&gt;23&lt;/filed&gt;

&lt;filed name="cell"&gt;123456434&lt;/filed&gt;

&lt;/record&gt;

&lt;record id='3' name="smp.model2"&gt;

&lt;filed name="name"&gt;name1&lt;/filed&gt;

&lt;filed name="age"&gt;23&lt;/filed&gt;

&lt;filed name="cell"&gt;123456434&lt;/filed&gt;

&lt;/record&gt;

&lt;/data&gt;

&lt;/openerp&gt;
</code></pre>

<p><strong>This is python_file.py</strong></p>

<pre><code>from openerp import models,fields

class model2(models.Model):

_name="smp.model2"

name=fields.Char(string="model name", requred=True, help="name of the 

model")

active=fields.Boolean(String="Active")

age=fields.Integer(string="person age",help="age of person")

sal=fields.Integer(string="sal")

adharid=fields.Integer(string="Adhar Id")

cell=fields.Integer(string="phone number",requred=True)

extrainfo=fields.Text(string="Extra information")

temporaryaddress=fields.Text(string="Temporary address")

perminantaddress=fields.Text(string="perminant address")
</code></pre>

<p><strong>This is __openerp__.py file</strong></p>

<pre><code>{

    'name':'module12',

    'description':'module12',

    'author':'naveen',

    'version':'9.0',

    'depends':['base'],

    'data':['xmlfile.xml','data.xml']
}
</code></pre>