The following bug has been logged on the website:
Bug reference: 15496
Logged by: Carl Rylett
Email address: carlrylett(at)yahoo(dot)co(dot)uk
PostgreSQL version: 11.1
Operating system: Windows 10
Description:
Just trying Postgresql first time. Downloaded v11.1
Error 'The application server could not be contacted' on starting
pgAdmin.After searching I find I can resolve by deleting content from
C:\Users\{username}\AppData\Roaming\pgAdmin but I have to this this every
time when restarting pgAdmin
Note I have looked hard to find a way to submit a community question but
this is not obvious.
Regards,
Carl