missing definition meaning

• [Computer]
  <introduction> First, this is an (English language) computing dictionary. It includes lots of terms from related fields such as mathematics and electronics, but if you're looking for (or want to submit) words from other subjects or general English words or other languages, try
  
  If you've already searched the dictionary for a computing term and it's not here then please don't tell me. There are, and always will be, a great many missing terms, no dictionary is ever complete. I use my limited time to process the corrections and definitions people have submitted and to add the
  
  Try one of the sources mentioned above or
  
  See also the note on
  
  What does ... mean? How do I ...? Where can I find ...?
  
  I'm afraid I don't have time to answer personal requests for definitions, help configure your PC, do your homework, or explain what that Windoze error message means, etc. so please don't ask me.
  
  How do I submit a definition?
  
  I'm afraid I can't accept any more new definitions at the moment, I have a huge backlog awaiting processing.

• Add the missing definition to the solution
• The properties window will not display properties for the missing definition
• After resolving missing definitions, you can continue editing and designing the system
• If the missing definition is a system, add the system diagram back to the solution
• For example, if the missing definition is an unimplemented application, add an application of the same type to the application diagram
• The system diagram also displays alert indicators on members to indicate any missing definitions until you add those definitions to the current solution
• The help needed is to fill in missing definitions.