No submenu is shown and None menu is functioning....

RStudio build from source, git of September 20, 2018.
Everything goes on well. However, after installation, when I tried to run rstudio, I always obtain the following ERROR message:

$ [0920/002409.390277:WARNING:stack_trace_posix.cc(699)] Failed to open file: /tmp/.gl2pTxbR (deleted)
  Error: No such file or directory

And, ONLY the 1st level of rstudio menu is able to show, none of the 2nd level menu is able to show. I mean, under File, there is NOTHING shown.

Suggestions please?

Cheers
Pei

If you're going to cross-post, please make it clear to avoid duplication of effort from IDE + community members: https://github.com/rstudio/rstudio/issues/3510

We can continue the conversation here.