Hi I am using visual studio 2010 I have done these steps, you can also do them: 1)started a new website, with c#. simplest code will be created. you can view it in your browser. 2)published the site without any change, keeping it simple 3)uploaded the published the version of website but it did not work on johnny server! Here are the website project, and ready to publish version: saleh.heliohost.org/WebSite-PublishVersion.rar saleh.heliohost.org/WebSite-WhiteTemplate.rar and the pubished version is on the root directory. you can see the error message: saleh.heliohost.org/ would anyone solve the problem or tell me what's going on?!