compiling on Ubuntu fail

[rptnscz]

Sorry for newbies question, but I've no fucking clue what is wrong... Is there any package missing?? Thank you for help:

$ xbuild ParadoxIp.Build.msbuildproj XBuild Engine Version 12.0 Mono, Version 4.2.1.0 Copyright (C) 2005-2013 Various Mono authors

Build started 15. 5. 2017 21:07:22.

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Project "/home/rp/projekty/ParadoxAlarmControl-master/ParadoxIp.Build.msbuildproj" (default target(s)): Target RestorePackages: Executing: mono --runtime=v4.0.30319 "packages/nuget.exe" restore "ParadoxIp.sln" Unhandled Exception: System.IO.FileNotFoundException: Could not load file or assembly 'WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. File name: 'WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' [ERROR] FATAL UNHANDLED EXCEPTION: System.IO.FileNotFoundException: Could not load file or assembly 'WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. File name: 'WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' /home/rp/projekty/ParadoxAlarmControl-master/ParadoxIp.Build.msbuildproj: error : Command 'mono --runtime=v4.0.30319 "packages/nuget.exe" restore "ParadoxIp.sln"' exited with code: 1. Task "Exec" execution -- FAILED Done building target "RestorePackages" in project "/home/rp/projekty/ParadoxAlarmControl-master/ParadoxIp.Build.msbuildproj".-- FAILED Done building project "/home/rp/projekty/ParadoxAlarmControl-master/ParadoxIp.Build.msbuildproj".-- FAILED

Build FAILED. Errors:

/home/rp/projekty/ParadoxAlarmControl-master/ParadoxIp.Build.msbuildproj (default targets) -> (RestorePackages target) ->

/home/rp/projekty/ParadoxAlarmControl-master/ParadoxIp.Build.msbuildproj: error : Command 'mono --runtime=v4.0.30319 "packages/nuget.exe" restore "ParadoxIp.sln"' exited with code: 1.

 0 Warning(s)
 1 Error(s)

Time Elapsed 00:00:00.1301950