ValueError：xpath 不返回任何 node . python中的Pandas 错误

我试图通过添加一个条件来创建一个数据帧，以仅获取正常运行的数据，即某个属性(如"堆栈").

我的windows 10和spyder IDE中安装了pandas 1.3.4.

import pandas as pd

df_employee = pd.read_xml('employee.xml',xpath='employee_name')
df_cor = pd.read_xml('employee.xml',xpath='employee_name/email')
df_id = pd.read_xml('employee.xml',xpath='employee_name/email/id')
df_id2 = pd.read_xml('employee.xml',xpath='//id')
df_address = pd.read_xml('employee.xml',xpath='employee_name/email/id/address')
df_address2 = pd.read_xml('employee.xml',xpath='//address')
df_street = pd.read_xml('employee.xml',xpath='employee_name/email/id/address/street')
df_street2 = pd.read_xml('employee.xml',xpath='//street')
df_state = pd.read_xml('employee.xml',xpath='employee_name/email/id/address/street/state')
df_cell_cap = pd.read_xml('employee.xml',xpath='employee_name/email/id[@name="stack"]//address')
df_street_stack = pd.read_xml('employee.xml',xpath='employee_name/email/id[@name="stack"]//street')

代码在此阶段正常运行，但当它到达下一行时会抛出错误.

df_cell_cap = pd.read_xml('employee.xml',xpath='employee_name/email/id[@name="stack"]//address')

我try 了以下方法，但错误仍然存在.

df_address_stack = pd.read_xml('employee.xml',xpath='employee_name/email/id[contains(@name,"stack")]//address')
df_address_stack = pd.read_xml('employee.xml',xpath='employee_name/email/id/*[name() = 'stack']/address'

错误:

Value错误: xpath does not return any nodes. Be sure row level nodes are in xpath. If document uses namespaces denoted with xmlns, be sure to define namespaces and use them in xpath.

有什么我遗漏的吗？

<?xml version="1.0" encoding="UTF-8"?>
<employee_name name="ndlkjfidm" date="dfhkryi">
    <email name="nnn" P="ffgnp" V="0.825" T="125c">
        <id name="stack">
            <address name="adas_jk3" type="entry">
                <street name="VSS" voltage="0.000000" vector="!ENXB" active_input="NA" active_ouput="ENX">
                    <temp name="ADS_DEFAULT_temp_LOW">
                        <raw nod="VBP" alt="7.05537e-15" jus="74.4619" />
                        <raw nod="VDDC" alt="4.63027e-10" jus="115.178" />
                    </temp>
                </street>
                <street name="VSS" voltage="0.000000" vector="ENXB" active_input="NA" active_ouput="ENX">
                    <temp name="ADS_DEFAULT_temp_HIGH">
                        <raw nod="VBP" alt="7.05537e-15" jus="74.4644" />
                        <raw nod="VDDC" alt="1.52578e-14" jus="311.073" />
                    </temp>
                </street>
            </address>
        </id>
    </email>
</employee_name>