错误提示不明白???

Question

" 无法读取配置节“profile”，因为它缺少节声明 "是什么意思?该怎样改???

Answer 1

<?xml version="1.0" encoding="utf-8"?>
<configuration>
    <system.web>
      <compilation debug="true" targetFramework="4.5" />
      <httpRuntime targetFramework="4.5" />
    </system.web>
  <profile>
    <properties>
      <add name="PostalCode"/>
    </properties>
  </profile>
</configuration>
还是不明白?