Subsonic DAL code generation

I'm trying to generate dal from subsonic. But after generating when I'm trying to compile its giving me an error of multiple definitions with identical signatures. This is my app.config. I'm using subsonic 2.0.

<configSections>
 <section name="Sub开发者_JS百科SonicService" 
          type="SubSonic.SubSonicSection, SubSonic" />
</configSections>
<connectionStrings>
 <add name="Hercules" 
      connectionString="Data Source=SOUVIKT\SQLEXPRESS; Database=ERPVIPULDEMO; Integrated Security=true;"/>
</connectionStrings>
<SubSonicService defaultProvider="Hercules">
<providers>
<clear/>
<add name="Hercules" 
     type="SubSonic.SqlDataProvider, SubSonic" 
     connectionStringName="Hercules" 
     generatedNamespace="Hercules"
     fixPluralClassName="false"
     removeUnderscores="false"
     relatedTableLoadPrefix="Get"
     excludeTableList="batchstock" />
</providers>
</SubSonicService>

Make sure you're not also using the build provider (in App_Code)