I uploaded nopcommerce solution to appharbor (using this method Can't build notcommerce project under appharbor) and solution succesfully builded, but I receiving 403 error - Forbidden: Access is denied when trying to open page(Allow write-access to file system is set to true).
Thanks and hope for your help
The problem is that the standard NopCommerce solution contains two Web Projects. AppHarbor only deploys one web project per application, and in this case, we happen to deploy Nop.Admin which is not what you want.
To resolve this, you should take advantage of the AppHarbor solution file convention and create an AppHarbor.sln solution file that only references the Nop.Web project.