I keep getting the “There was an error installing the requested package. This can happen if the server does not have write access to the ‘~/Modules’ or ‘~/Themes’ folder of the web site. If the site is running in shared hosted environement, adding write access to these folders sometimes needs to be done manually through the Hoster control panel. Once Themes and Modules have been installed, it is recommended to remove write access to these folders.” message when trying to install a module from the Gallery.
I’ve given the IIS_WPG full control of the Orchard.Web\Modules directory and it worked yesterday, but it doesn’t today.
I’m running from Visual Studio 2010 SP1 and IIS Express.
EDIT: I’ve made sure the gallery path is: http://packages.orchardproject.net/FeedService.svc/
I came across the same issue. We had a custom theme and I had to change the version from 1 to 1.0 in the theme.txt file. Then I was able to install a module.