This error will occurred only when python server is not started properly and application try to contact the python server but it fails. It may be due to some error at python backend side or python server taking more time to up.
Can you please provide below information ?
Which version of pgAdmin4 are you using ?
Which version of Postgres installers and from where you have downloaded the installers ?
Can you please share pgAdmin4.log file ?
Thanks,
Neel Patel
On Tue, Nov 14, 2017 at 8:34 AM, Jessica Dow <jrdow@uh.edu> wrote:
I was trying to use pgAdmin4 to connect to a database, but I get "The application server could not be contacted. I have tried reinstalling Postgres numerous times, as well using other solutions that were available online, and nothing seems to work. I was hoping you could provide me some assistance to fixing this issue.