{"action":"created","issue":{"url":"https://api.github.com/repos/dotnet/project-system/issues/3349","repository_url":"https://api.github.com/repos/dotnet/project-system","labels_url":"https://api.github.com/repos/dotnet/project-system/issues/3349/labels{/name}","comments_url":"https://api.github.com/repos/dotnet/project-system/issues/3349/comments","events_url":"https://api.github.com/repos/dotnet/project-system/issues/3349/events","html_url":"https://github.com/dotnet/project-system/issues/3349","id":302827021,"number":3349,"title":"VS 15.6.0 freezes when trying to load an F# project that worked in 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just upgraded from 15.5.7 to 15.6.0. When loading a particular solution containing 12 C# and 2 F# projects VS freezes while the following dialog is shown:\r\n\r\n> Loading solution projects\r\n> \r\n> Loading project 3 of 14: FSharpModules\r\n\r\n(\"FSharpModules\" is the name of an F# project).\r\n\r\nDeleting the .vs directory did not help, but deleting the bin and obj directories for that project allowed the rest of the solution to load. That project still fails to load, however, and an error dialog is shown:\r\n\r\n> ---------------------------\r\n> Microsoft Visual Studio\r\n> ---------------------------\r\n> The project system has encountered an error.\r\n> \r\n> An item with the same key has already been added.\r\n> \r\n> A diagnostic log has been written to the following location: \"C:\\Temp\\User\\VsProjectFault_62cc9d63-f6d6-4407-8a51-0f488d4d7384.failure.txt\".\r\n> \r\n> ---------------------------\r\n> OK   \r\n> ---------------------------\r\n\r\nLog file attached: [VsProjectFault_62cc9d63-f6d6-4407-8a51-0f488d4d7384.failure.txt](https://github.com/dotnet/project-system/files/1786328/VsProjectFault_62cc9d63-f6d6-4407-8a51-0f488d4d7384.failure.txt)\r\n\r\nThe project is unloaded and if I try to load it from the context menu VS freezes again. It also freezes if I restore the deleted bin and obj directories (I took a backup), so this is 100% reproducible on that project. (I am able to load other F# projects.) The problematic project worked immediately before upgrading and in earlier VS versions."},"comment":{"url":"https://api.github.com/repos/dotnet/project-system/issues/comments/370909660","html_url":"https://github.com/dotnet/project-system/issues/3349#issuecomment-370909660","issue_url":"https://api.github.com/repos/dotnet/project-system/issues/3349","id":370909660,"user":{"login":"Pilchie","id":312835,"avatar_url":"https://avatars3.githubusercontent.com/u/312835?v=4","gravatar_id":"","url":"https://api.github.com/users/Pilchie","html_url":"https://github.com/Pilchie","followers_url":"https://api.github.com/users/Pilchie/followers","following_url":"https://api.github.com/users/Pilchie/following{/other_user}","gists_url":"https://api.github.com/users/Pilchie/gists{/gist_id}","starred_url":"https://api.github.com/users/Pilchie/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Pilchie/subscriptions","organizations_url":"https://api.github.com/users/Pilchie/orgs","repos_url":"https://api.github.com/users/Pilchie/repos","events_url":"https://api.github.com/users/Pilchie/events{/privacy}","received_events_url":"https://api.github.com/users/Pilchie/received_events","type":"User","site_admin":false},"created_at":"2018-03-06T20:02:54Z","updated_at":"2018-03-06T20:02:54Z","author_association":"MEMBER","body":"Putting in 15.7, but we're also considering for 15.6 servicing."}}
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