What is LLDB RPC Server ? When does it crash in Xcode? Why it crashes?

Question

I am getting a message in my debugger:

The LLDB RPC server has crashed. The crash log is located in ~/Library/Logs/DiagnosticReports and has a prefix

Answer 1

In my case the LLDB RPC server consistently crashed every time I ran my app, even after cleaning the build folder and removing and reinstalling Xcode (Version 8.3.3 (8E3004b)) completely.

It turned out that apparently LLDB took objection to a breakpoint I had set, just moving this breakpoint by a line resolved the issue.