Telerik Reporting provides not only controls for displaying reports with diffrent technologies, but also complex engines allowing developers to utilize Visual Studio designers, which requires GAC installation.
To avoid issues when you work with websites, I can recommend you to copy the needed DLLs from Telerik Reporting Product Folder
into the Web Site Bin folder
, and reference them from there. When it comes to deployment, publish your work locally, which will help you test the site with IIS and check if assemblies are placed correctly. Finally deploy the published version to the production machine.
New HTML5/JS REPORT VIEWER with MOBILE AND TOUCH SUPPORT available in Telerik Reporting Q3 2013! Get the new Reporting version from your account or download a trial.