При попытке открыть Справка -> API Documentation выдаёт ошибку:

Could not start monodoc : System.ComponentModel.Win32Exception (0x80004005): ApplicationName='monodoc', CommandLine='--help', CurrentDirectory='', Native error= Cannot find the specified file
  at System.Diagnostics.Process.StartWithCreateProcess (System.Diagnostics.ProcessStartInfo startInfo) [0x002f4] in <3f672a941b5f466fb5dc321b3015c863>:0 
  at System.Diagnostics.Process.Start () [0x00040] in <3f672a941b5f466fb5dc321b3015c863>:0 
  at MonoDevelop.Core.Execution.ProcessWrapper.Start () [0x00007] in <f6f0d63b5afa441b81527f9cfa2397ec>:0 
  at (wrapper remoting-invoke-with-check) MonoDevelop.Core.Execution.ProcessWrapper.Start()
  at MonoDevelop.Core.Execution.ProcessService.StartProcess (System.Diagnostics.ProcessStartInfo startInfo, MonoDevelop.Core.Execution.ProcessEventHandler outputStreamChanged, MonoDevelop.Core.Execution.ProcessEventHandler errorStreamChanged, System.EventHandler exited) [0x000d8] in <f6f0d63b5afa441b81527f9cfa2397ec>:0 
  at MonoDevelop.Core.Execution.ProcessService.StartProcess (System.String command, System.String arguments, System.String workingDirectory, MonoDevelop.Core.Execution.ProcessEventHandler outputStreamChanged, MonoDevelop.Core.Execution.ProcessEventHandler errorStreamChanged, System.EventHandler exited, System.Boolean redirectStandardInput) [0x0000d] in <f6f0d63b5afa441b81527f9cfa2397ec>:0 
  at MonoDevelop.Core.Execution.ProcessService.StartProcess (System.String command, System.String arguments, System.String workingDirectory, System.IO.TextWriter outWriter, System.IO.TextWriter errorWriter, System.EventHandler exited, System.Boolean redirectStandardInput) [0x00011] in <f6f0d63b5afa441b81527f9cfa2397ec>:0 
  at MonoDevelop.Ide.HelpOperations.CheckExternalMonodoc () [0x00025] in <260198b407b04800bbffcff2e71a165f>:0

Система: ALT Workstation 9.1 x86_64, текущий сизиф
Версии пакетов:
monodevelop-5.10.0.871-alt1
mono-monodoc-6.12.0.122-alt1