{"action":"created","issue":{"url":"https://api.github.com/repos/PrismLibrary/Prism/issues/503","repository_url":"https://api.github.com/repos/PrismLibrary/Prism","labels_url":"https://api.github.com/repos/PrismLibrary/Prism/issues/503/labels{/name}","comments_url":"https://api.github.com/repos/PrismLibrary/Prism/issues/503/comments","events_url":"https://api.github.com/repos/PrismLibrary/Prism/issues/503/events","html_url":"https://github.com/PrismLibrary/Prism/issues/503","id":142207463,"number":503,"title":"Prism.Forms NavigationParameters on INavigationService.GoBack","user":{"login":"tomaswinston","id":3751639,"avatar_url":"https://avatars.githubusercontent.com/u/3751639?v=3","gravatar_id":"","url":"https://api.github.com/users/tomaswinston","html_url":"https://github.com/tomaswinston","followers_url":"https://api.github.com/users/tomaswinston/followers","following_url":"https://api.github.com/users/tomaswinston/following{/other_user}","gists_url":"https://api.github.com/users/tomaswinston/gists{/gist_id}","starred_url":"https://api.github.com/users/tomaswinston/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/tomaswinston/subscriptions","organizations_url":"https://api.github.com/users/tomaswinston/orgs","repos_url":"https://api.github.com/users/tomaswinston/repos","events_url":"https://api.github.com/users/tomaswinston/events{/privacy}","received_events_url":"https://api.github.com/users/tomaswinston/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/PrismLibrary/Prism/labels/XF","name":"XF","color":"5319e7"}],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":6,"created_at":"2016-03-20T21:23:34Z","updated_at":"2016-03-22T08:04:09Z","closed_at":"2016-03-21T23:39:37Z","body":"Hi,\r\n\r\nI am using Prism.Forms in my Xamarin.Forms project. In the project I am using the INavigationService. I am using EventAggregator to pass parameters from a 'Navigated To' ViewModel back to the origin. However, looking at the INavigationService code for Prism.Forms [here](https://github.com/PrismLibrary/Prism/blob/master/Source/Xamarin/Prism.Forms/Navigation/INavigationService.cs) it looks as though I should be able to pass NavigationParameters back in the GoBack procedure. \r\nIn my project I am using the latest version i.e. 6.1.0-pre3 but this functionality doesn't seem to be available. Is there a reason for this or what could I be doing wrong?\r\n\r\nCheers"},"comment":{"url":"https://api.github.com/repos/PrismLibrary/Prism/issues/comments/199687400","html_url":"https://github.com/PrismLibrary/Prism/issues/503#issuecomment-199687400","issue_url":"https://api.github.com/repos/PrismLibrary/Prism/issues/503","id":199687400,"user":{"login":"tomaswinston","id":3751639,"avatar_url":"https://avatars.githubusercontent.com/u/3751639?v=3","gravatar_id":"","url":"https://api.github.com/users/tomaswinston","html_url":"https://github.com/tomaswinston","followers_url":"https://api.github.com/users/tomaswinston/followers","following_url":"https://api.github.com/users/tomaswinston/following{/other_user}","gists_url":"https://api.github.com/users/tomaswinston/gists{/gist_id}","starred_url":"https://api.github.com/users/tomaswinston/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/tomaswinston/subscriptions","organizations_url":"https://api.github.com/users/tomaswinston/orgs","repos_url":"https://api.github.com/users/tomaswinston/repos","events_url":"https://api.github.com/users/tomaswinston/events{/privacy}","received_events_url":"https://api.github.com/users/tomaswinston/received_events","type":"User","site_admin":false},"created_at":"2016-03-22T08:04:09Z","updated_at":"2016-03-22T08:04:09Z","body":"Ok. Solved. Although I had installed the latest 6.1.0-pre3 Prism.Forms package, the references in my Xamarin Studio Xamarin Forms project hadn't updated to reference the new package and were instead referencing the older package of 6.0.0.\r\n\r\nSorry for wasting ones time and thanks for guiding me to the solution.\r\n\r\nT\r\n"}}