title: Why getting an access to file path denied message when executing ssis package from catalog
body: <p>I've gone through a number of posts - and haven't come across a solution to this.  I've spent days on this... I have a project which contains one package with parameters that as part of the processing, moves files from file server to db server &amp; vice versa.  It  runs fine on ssdt.  I deployed it to  SQL Server 2012 ssisdb using project deployment.  Before doing this, I mapped parameters to configuration values on the ssdt side, and it appears that I can use these on the server, so saw no need to set up environment variables for (yet).  When I execute the package via ssms on the server, I get 'Access to the path ... is denied'.  My understanding is that the package will execute using my credentials (since I'm using mine on ssms) -- and, as I said previously, this was working fine with my credentials on ssdt.  I've checked permissions on the file and the share.  I've confirmed  that I am added to the Dcomcnfg - security - Launch and Activation Permissions. </p>