NuGet VSTS invalid uri

PackagesViewModel error
System.AggregateException: One or more errors occurred. ---> System.UriFormatException: Invalid URI: The hostname could not be parsed.
  at System.Uri.Parse (UriKind kind, System.String uriString) [0x00020] in /private/tmp/source-mono-4.4.0-c7sr1/bockbuild-mono-4.4.0-branch-c7sr1/profiles/mono-mac-xamarin/build-root/mono-x86/mcs/class/System/System/Uri.cs:1306 
  at System.Uri.ParseUri (UriKind kind) [0x00000] in /private/tmp/source-mono-4.4.0-c7sr1/bockbuild-mono-4.4.0-branch-c7sr1/profiles/mono-mac-xamarin/build-root/mono-x86/mcs/class/System/System/Uri.cs:1176 
  at System.Uri..ctor (System.String uriString, UriKind uriKind) [0x0005b] in /private/tmp/source-mono-4.4.0-c7sr1/bockbuild-mono-4.4.0-branch-c7sr1/profiles/mono-mac-xamarin/build-root/mono-x86/mcs/class/System/System/Uri.cs:200 
  at System.Data.Services.Client.Util.CreateUri (System.String value, UriKind kind) [0x00000] in /private/tmp/source-mono-4.4.0-c7sr1/bockbuild-mono-4.4.0-branch-c7sr1/profiles/mono-mac-xamarin/build-root/mono-x86/mcs/class/System.Data.Services.Client/Client/System/Data/Services/Client/Util.cs:176 
  at System.Data.Services.Client.Xml.XmlWrappingReader.Read () [0x00092] in /private/tmp/source-mono-4.4.0-c7sr1/bockbuild-mono-4.4.0-branch-c7sr1/profiles/mono-mac-xamarin/build-root/mono-x86/mcs/class/System.Data.Services.Client/Client/System/Data/Services/Client/Xml/XmlWrappingReader.cs:378 
  at System.Data.Services.Client.Xml.XmlAtomErrorReader.Read () [0x00000] in /private/tmp/source-mono-4.4.0-c7sr1/bockbuild-mono-4.4.0-branch-c7sr1/profiles/mono-mac-xamarin/build-root/mono-x86/mcs/class/System.Data.Services.Client/Client/System/Data/Services/Client/Xml/XmlAtomErrorReader.cs:35 
  at System.Data.Services.Client.AtomParser.Read () [0x00104] in /private/tmp/source-mono-4.4.0-c7sr1/bockbuild-mono-4.4.0-branch-c7sr1/profiles/mono-mac-xamarin/build-root/mono-x86/mcs/class/System.Data.Services.Client/Client/System/Data/Services/Client/AtomParser.cs:128 
  at System.Data.Services.Client.AtomMaterializer.Read () [0x00159] in /private/tmp/source-mono-4.4.0-c7sr1/bockbuild-mono-4.4.0-branch-c7sr1/profiles/mono-mac-xamarin/build-root/mono-x86/mcs/class/System.Data.Services.Client/Client/System/Data/Services/Client/AtomMaterializer.cs:702 
  at System.Data.Services.Client.MaterializeAtom.MoveNextInternal () [0x000f3] in /private/tmp/source-mono-4.4.0-c7sr1/bockbuild-mono-4.4.0-branch-c7sr1/profiles/mono-mac-xamarin/build-root/mono-x86/mcs/class/System.Data.Services.Client/Client/System/Data/Services/Client/MaterializeFromAtom.cs:253 
  at System.Data.Services.Client.MaterializeAtom.MoveNext () [0x00018] in /private/tmp/source-mono-4.4.0-c7sr1/bockbuild-mono-4.4.0-branch-c7sr1/profiles/mono-mac-xamarin/build-root/mono-x86/mcs/class/System.Data.Services.Client/Client/System/Data/Services/Client/MaterializeFromAtom.cs:198 
  at NuGet.DataServiceQueryWrapper`1+<GetAll>d__7[T].MoveNext () <0x11f9a9cf0 + 0x00376> in <filename unknown>:0 
  at System.Collections.Generic.List`1[T]..ctor (IEnumerable`1 collection) [0x0008b] in /private/tmp/source-mono-4.4.0-c7sr1/bockbuild-mono-4.4.0-branch-c7sr1/profiles/mono-mac-xamarin/build-root/mono-x86/external/referencesource/mscorlib/system/collections/generic/list.cs:99 
  at System.Linq.Enumerable.ToList[TSource] (IEnumerable`1 source) [0x00011] in /private/tmp/source-mono-4.4.0-c7sr1/bockbuild-mono-4.4.0-branch-c7sr1/profiles/mono-mac-xamarin/build-root/mono-x86/external/referencesource/System.Core/System/Linq/Enumerable.cs:835 
  at NuGet.BufferedEnumerable`1+BufferedEnumerator`1[TElement,T].MoveNext () <0x11fab6250 + 0x0014a> in <filename unknown>:0 
  at System.Linq.Enumerable+WhereEnumerableIterator`1[TSource].MoveNext () [0x00062] in /private/tmp/source-mono-4.4.0-c7sr1/bockbuild-mono-4.4.0-branch-c7sr1/profiles/mono-mac-xamarin/build-root/mono-x86/external/referencesource/System.Core/System/Linq/Enumerable.cs:147 
  at MonoDevelop.PackageManagement.PackageManagementEnumerableExtensions+<DistinctLast>c__Iterator0`1[TSource].MoveNext () [0x000ba] in /Users/builder/data/lanes/3541/a6f7a24a/source/monodevelop/main/src/addins/MonoDevelop.PackageManagement/MonoDevelop.PackageManagement/PackageManagementEnumerableExtensions.cs:47 
  at System.Linq.Enumerable+<SkipIterator>c__Iterator9`1[TSource].MoveNext () [0x000aa] in /private/tmp/source-mono-4.4.0-c7sr1/bockbuild-mono-4.4.0-branch-c7sr1/profiles/mono-mac-xamarin/build-root/mono-x86/external/referencesource/System.Core/System/Linq/Enumerable.cs:528 
  at System.Linq.Enumerable+<TakeIterator>c__Iterator6`1[TSource].MoveNext () [0x0009d] in /private/tmp/source-mono-4.4.0-c7sr1/bockbuild-mono-4.4.0-branch-c7sr1/profiles/mono-mac-xamarin/build-root/mono-x86/external/referencesource/System.Core/System/Linq/Enumerable.cs:486 
  at System.Linq.Enumerable.Count[TSource] (IEnumerable`1 source) [0x0004b] in /private/tmp/source-mono-4.4.0-c7sr1/bockbuild-mono-4.4.0-branch-c7sr1/profiles/mono-mac-xamarin/build-root/mono-x86/external/referencesource/System.Core/System/Linq/Enumerable.cs:1200 
  at MonoDevelop.PackageManagement.PackagesForSelectedPageResult..ctor (IEnumerable`1 packages, MonoDevelop.PackageManagement.PackagesForSelectedPageQuery query) [0x0000d] in /Users/builder/data/lanes/3541/a6f7a24a/source/monodevelop/main/src/addins/MonoDevelop.PackageManagement/MonoDevelop.PackageManagement/PackagesForSelectedPageResult.cs:42 
  at MonoDevelop.PackageManagement.PackagesViewModel.GetPackagesForSelectedPageResult (MonoDevelop.PackageManagement.PackagesForSelectedPageQuery query) [0x00008] in /Users/builder/data/lanes/3541/a6f7a24a/source/monodevelop/main/src/addins/MonoDevelop.PackageManagement/MonoDevelop.PackageManagement/PackagesViewModel.cs:166 
  at MonoDevelop.PackageManagement.PackagesViewModel+<CreateReadPackagesTask>c__AnonStorey2.<>m__0 () [0x00000] in /Users/builder/data/lanes/3541/a6f7a24a/source/monodevelop/main/src/addins/MonoDevelop.PackageManagement/MonoDevelop.PackageManagement/PackagesViewModel.cs:159 
  at System.Threading.Tasks.Task`1[TResult].InnerInvoke () [0x00012] in /private/tmp/source-mono-4.4.0-c7sr1/bockbuild-mono-4.4.0-branch-c7sr1/profiles/mono-mac-xamarin/build-root/mono-x86/external/referencesource/mscorlib/system/threading/Tasks/Future.cs:680 
  at System.Threading.Tasks.Task.Execute () [0x00016] in /private/tmp/source-mono-4.4.0-c7sr1/bockbuild-mono-4.4.0-branch-c7sr1/profiles/mono-mac-xamarin/build-root/mono-x86/external/referencesource/mscorlib/system/threading/Tasks/Task.cs:2502 
  --- End of inner exception stack trace ---