Re: The application server could not be contacted Error

I’ve experienced this on two Windows machines — one Windows 7 and the other
Windows 10. In both cases, if I click through the error message and then
re-try launching pgAdmin it will open successfully.

I’ve also noticed that if I attempt to start pgAdmin too soon after booting
the machine (and these are both older, slower machines that take a while to
boot), then I will get this error. If I let them sit for a bit and do
whatever it is that Windows does after booting (seems like a ton of disk
activity, maybe some indexing), then pgAdmin is more likely to launch
successfully.

On November 14, 2017 at 9:44:35 AM, Jessica Dow (jrdow(at)uh(dot)edu) wrote:

I downloaded the installer of PostgresSQL version 10 and pgAdmin4 came with
it, so I'm not sure of the version of pgAdmin4 I am using.
This is the link I used to download the installer: PostgreSQL: Windows
installers <https://www.postgresql.org/download/windows/>

Yahoo would not allow me to attach the pgAdmin4.log because it is empty.

PostgreSQL: Windows installers
<https://www.postgresql.org/download/windows/>

On Tuesday, November 14, 2017 3:25 AM, Neel Patel <
neel(dot)patel(at)enterprisedb(dot)com> wrote:

Hi,

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(at)uh(dot)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.

Thank you,
Jessica Dow