NeatUpload配置<neatUpload useHttpModule="true" />总是出错

 
<neatUpload useHttpModule="true" maxNormalRequestLength="1048576" maxRequestLength="1048576" defaultProvider="FilesystemUploadStorageProvider"> 

<providers>  

<add type="Brettle.Web.NeatUpload.FilesystemUploadStorageProvider, Brettle.Web.NeatUpload"/> 

</providers>   

</neatUpload>

补充：.NET技术 ,  ASP.NET