Add empty project for Gui app.
MODIFY
WalletWasabi.sln
WalletWasabi.sln
@@ -20,6 +20,8 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
README.md = README.md
EndProjectSection
EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "WalletWasabi.Gui", "WalletWasabi.Gui\WalletWasabi.Gui.csproj", "{B007DC0F-8C86-439D-BE3C-283218D8308B}"
+EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Any CPU = Debug|Any CPU
@@ -38,6 +40,10 @@ Global
{526AC796-6CC0-4ADA-9A7E-C12267719A1A}.Debug|Any CPU.Build.0 = Debug|Any CPU
{526AC796-6CC0-4ADA-9A7E-C12267719A1A}.Release|Any CPU.ActiveCfg = Release|Any CPU
{526AC796-6CC0-4ADA-9A7E-C12267719A1A}.Release|Any CPU.Build.0 = Release|Any CPU
+ {B007DC0F-8C86-439D-BE3C-283218D8308B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+ {B007DC0F-8C86-439D-BE3C-283218D8308B}.Debug|Any CPU.Build.0 = Debug|Any CPU
+ {B007DC0F-8C86-439D-BE3C-283218D8308B}.Release|Any CPU.ActiveCfg = Release|Any CPU
+ {B007DC0F-8C86-439D-BE3C-283218D8308B}.Release|Any CPU.Build.0 = Release|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE

Add empty project for Gui app.