Project can not be build

[SylwesterZarebski]

What's wrong
Project do not compile.

Build errors

Error	CS0246	The type or namespace name 'WPFCustomMessageBox' could not be found (are you missing a using directive or an assembly reference?)	LocalHistory	C:\Programming\Libraries\LocalHistory\LocalHistory\LocalHistoryControl.xaml.cs	28	Active
Error	CS0246	The type or namespace name 'ImmutableHashSet<>' could not be found (are you missing a using directive or an assembly reference?)	LocalHistory	C:\Programming\Libraries\LocalHistory\LocalHistory\LocalHistoryDocumentListener.cs	31	Active
Warning		Could not resolve this reference. Could not locate the assembly "WPFCustomMessageBox, Version=1.0.7.39267, Culture=neutral, processorArchitecture=MSIL". Check to make sure the assembly exists on disk. If this reference is required by your code, you may get compilation errors.
Warning		Could not resolve this reference. Could not locate the assembly "System.Collections.Immutable, Version=1.2.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL". Check to make sure the assembly exists on disk. If this reference is required by your code, you may get compilation errors.

Second reference could be fixed by using NuGet package.

System
Windows 10, Visual Studio 2017 Pro (15.9.4 and newest 15.9.7). No additional software like JetBrains'.

[SugoiDev]

Alright, I think c6fd176 fixes this.

[SylwesterZarebski]

Thanks, now it works.