Re: Fatal error: The pgAdmin 4 server could not be contacted

Hi Cuthbert,

Could you please try below steps to rectify your issue:

1. Take a backup of your 'pgadmin4.db' file which is present at the
%APPDATA%\Roaming\pgadmin folder.
2. Delete 'pgadmin4.db' file.
3. Download pgAdmin4 v5.3 from
https://www.postgresql.org/ftp/pgadmin/pgadmin4/v5.3/windows/
4. Install and Launch 'pgAdmin4 v5'.

Also, I would suggest you to use the PostgreSQL 10+ or 11+ version as the
support for 9.6.22 would be lasting till Nov-2021 to get better support of
pgAdmin4 application.

On Tue, Jun 15, 2021 at 2:07 PM cuthbert taguta <ctaguta(at)gmail(dot)com> wrote:

> Dear Admin,
>
> Kindly assist me with this problem, see below. I installed PostgreSQL 9.6
> and PostGIS 3.1 Bundle .... v3.12 on my Windows 8.1 Pro. I even installed
> pgAdmin4v5.2 but the error persists. How do I rectify this? Thank you.
>
> *Fatal error: The pgAdmin 4 server could not be contacted*
> pgAdmin Runtime Environment
> --------------------------------------------------------
> Python Path: "C:\Program Files\pgAdmin 4\v5\python\python.exe"
> Runtime Config File:
> "C:\Users\DELL-3000-I5\AppData\Roaming\pgadmin\runtime_config.json"
> pgAdmin Config File: "C:\Program Files\pgAdmin 4\v5\web\config.py"
> Webapp Path: "C:\Program Files\pgAdmin 4\v5\web\pgAdmin4.py"
> pgAdmin Command: "C:\Program Files\pgAdmin 4\v5\python\python.exe -s
> C:\Program Files\pgAdmin 4\v5\web\pgAdmin4.py"
> Environment:
> - ALLUSERSPROFILE: C:\ProgramData
> - APPDATA: C:\Users\DELL-3000-I5\AppData\Roaming
> - CHROME_CRASHPAD_PIPE_NAME: \\.\pipe\crashpad_4136_LRJVKHMUFAXULQMN
> - CHROME_RESTART: NW.js|Whoa! NW.js has crashed. Relaunch
> now?|LEFT_TO_RIGHT
> - CommonProgramFiles: C:\Program Files\Common Files
> - CommonProgramFiles(x86): C:\Program Files (x86)\Common Files
> - CommonProgramW6432: C:\Program Files\Common Files
> - COMPUTERNAME: CT
> - ComSpec: C:\Windows\system32\cmd.exe
> - Drainmod6: C:\DrainMod
> - EnDrain: C:\EnDrain
> - FP_NO_HOST_CHECK: NO
> - GDAL_DATA: C:\Program Files\PostgreSQL\9.6\gdal-data
> - HOMEDRIVE: C:
> - HOMEPATH: \Users\DELL-3000-I5
> - LOCALAPPDATA: C:\Users\DELL-3000-I5\AppData\Local
> - LOGONSERVER: \\MicrosoftAccount
> - MOZ_PLUGIN_PATH: C:\Program Files (x86)\Foxit Software\Foxit
> Reader\plugins\
> - NSP_HOST: RNBO_SPN_ALL_MODES
> - NUMBER_OF_PROCESSORS: 4
> - OS: Windows_NT
> - Path:
> C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;;C:\Users\DELL-3000-I5\AppData\Local\Programs\Microsoft
> VS Code\bin
> - PATHEXT: .COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC
> - pest: C:\pest
> - PGADMIN_INT_KEY: 8506d72e-d744-4b1a-8e2a-4ef6ccfe39e2
> - PGADMIN_INT_PORT: 64084
> - PGADMIN_SERVER_MODE: OFF
> - POSTGIS_ENABLE_OUTDB_RASTERS: 1
> - POSTGIS_GDAL_ENABLED_DRIVERS: GTiff PNG JPEG GIF XYZ DTED USGSDEM
> AAIGrid
> - PROCESSOR_ARCHITECTURE: AMD64
> - PROCESSOR_IDENTIFIER: Intel64 Family 6 Model 61 Stepping 4,
> GenuineIntel
> - PROCESSOR_LEVEL: 6
> - PROCESSOR_REVISION: 3d04
> - ProgramData: C:\ProgramData
> - ProgramFiles: C:\Program Files
> - ProgramFiles(x86): C:\Program Files (x86)
> - ProgramW6432: C:\Program Files
> - PROJ_LIB: C:\Program
> Files\PostgreSQL\9.6\share\contrib\postgis-3.1\proj
> - PSModulePath: C:\Windows\system32\WindowsPowerShell\v1.0\Modules\
> - PUBLIC: C:\Users\Public
> - SESSIONNAME: Console
> - SystemDrive: C:
> - SystemRoot: C:\Windows
> - TEMP: C:\Users\DELL-3~1\AppData\Local\Temp
> - TMP: C:\Users\DELL-3~1\AppData\Local\Temp
> - USERDOMAIN: CT
> - USERDOMAIN_ROAMINGPROFILE: CT
> - USERNAME: DELL-3000-I5
> - USERPROFILE: C:\Users\DELL-3000-I5
> - WaSim: C:\Program Files (x86)\WaSim
> - windir: C:\Windows
>
> Regards,
>
> *Cuthbert Taguta*
> *PhD.Ag.Eng(Student-UKZN)**|**+27620752345*
>

--
*Rahul Shirsat*
Senior Software Engineer | EnterpriseDB Corporation.