{"action":"opened","issue":{"url":"https://api.github.com/repos/NuGet/Home/issues/2648","repository_url":"https://api.github.com/repos/NuGet/Home","labels_url":"https://api.github.com/repos/NuGet/Home/issues/2648/labels{/name}","comments_url":"https://api.github.com/repos/NuGet/Home/issues/2648/comments","events_url":"https://api.github.com/repos/NuGet/Home/issues/2648/events","html_url":"https://github.com/NuGet/Home/issues/2648","id":150500581,"number":2648,"title":"nuget 3.4.3 release -  getting Value cannot be null on package build","user":{"login":"chrisrestall","id":14104039,"avatar_url":"https://avatars.githubusercontent.com/u/14104039?v=3","gravatar_id":"","url":"https://api.github.com/users/chrisrestall","html_url":"https://github.com/chrisrestall","followers_url":"https://api.github.com/users/chrisrestall/followers","following_url":"https://api.github.com/users/chrisrestall/following{/other_user}","gists_url":"https://api.github.com/users/chrisrestall/gists{/gist_id}","starred_url":"https://api.github.com/users/chrisrestall/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/chrisrestall/subscriptions","organizations_url":"https://api.github.com/users/chrisrestall/orgs","repos_url":"https://api.github.com/users/chrisrestall/repos","events_url":"https://api.github.com/users/chrisrestall/events{/privacy}","received_events_url":"https://api.github.com/users/chrisrestall/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2016-04-23T00:32:39Z","updated_at":"2016-04-23T00:32:39Z","closed_at":null,"body":"As of todays release our packagebuilder stopped functioning.  Looks like it auto updated nuget.exe to 3.4.3 and now we get errors with building a package from a nuspec file.  Below is the log:\r\n\r\n2016-04-22 16:20:34 [INFO] : NuGet Packager 2.0.3\r\n2016-04-22 16:20:35 [INFO] : Updating NuGet...\r\n2016-04-22 16:20:37 [INFO] : Checking for updates from https://www.nuget.org/api/v2/.\r\n2016-04-22 16:20:37 [INFO] : Currently running NuGet.exe 3.4.3-rtm-0855.\r\n2016-04-22 16:20:37 [INFO] : Updating NuGet.exe to 3.4.3.\r\n2016-04-22 16:20:37 [INFO] : Update successful.\r\n2016-04-22 16:20:37 [INFO] : Creating package...\r\n2016-04-22 16:20:38 [INFO] : Attempting to build package from 'Package.nuspec'.\r\n2016-04-22 16:20:38 [ERROR] : System.ArgumentNullException: Value cannot be null.\r\n2016-04-22 16:20:38 [ERROR] : Parameter name: folderName\r\n2016-04-22 16:20:38 [ERROR] :    at NuGet.Frameworks.NuGetFramework.Parse(String folderName, IFrameworkNameProvider mappings)\r\n2016-04-22 16:20:38 [ERROR] :    at NuGet.Packaging.ManifestReader.<>c.<ReadFrameworkAssemblies>b__7_2(NuGet.Packaging.<>f__AnonymousType5`2 <>h__TransparentIdentifier0)\r\n2016-04-22 16:20:38 [ERROR] :    at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()\r\n2016-04-22 16:20:38 [ERROR] :    at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)\r\n2016-04-22 16:20:38 [ERROR] :    at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)\r\n2016-04-22 16:20:38 [ERROR] :    at NuGet.Packaging.ManifestReader.ReadFrameworkAssemblies(XElement frameworkElement)\r\n2016-04-22 16:20:38 [ERROR] :    at NuGet.Packaging.ManifestReader.ReadMetadataValue(ManifestMetadata manifestMetadata, XElement element, HashSet`1 allElements)\r\n2016-04-22 16:20:38 [ERROR] :    at NuGet.Packaging.ManifestReader.ReadMetadata(XElement xElement)\r\n2016-04-22 16:20:38 [ERROR] :    at NuGet.Packaging.ManifestReader.ReadManifest(XDocument document)\r\n2016-04-22 16:20:38 [ERROR] :    at NuGet.Packaging.Manifest.ReadFrom(Stream stream, Func`2 propertyProvider, Boolean validateSchema)\r\n2016-04-22 16:20:38 [ERROR] :    at NuGet.Packaging.PackageBuilder.ReadManifest(Stream stream, String basePath, Func`2 propertyProvider)\r\n2016-04-22 16:20:38 [ERROR] :    at NuGet.Packaging.PackageBuilder..ctor(String path, String basePath, Func`2 propertyProvider, Boolean includeEmptyDirectories)\r\n2016-04-22 16:20:38 [ERROR] :    at NuGet.CommandLine.PackCommand.CreatePackageBuilderFromNuspec(String path)\r\n2016-04-22 16:20:38 [ERROR] :    at NuGet.CommandLine.PackCommand.BuildFromNuspec(String path)\r\n2016-04-22 16:20:38 [ERROR] :    at NuGet.CommandLine.PackCommand.BuildPackage(String path)\r\n2016-04-22 16:20:38 [ERROR] :    at NuGet.CommandLine.PackCommand.ExecuteCommand()\r\n2016-04-22 16:20:38 [ERROR] :    at NuGet.CommandLine.Command.ExecuteCommandAsync()\r\n2016-04-22 16:20:38 [ERROR] :    at NuGet.CommandLine.Command.Execute()\r\n2016-04-22 16:20:38 [ERROR] :    at NuGet.CommandLine.Program.MainCore(String workingDirectory, String[] args)\r\n2016-04-22 16:20:38 [INFO] : Exit Code: 1"}}