Re: The pgAdmin 4 server could not be contacted:

Hi CHALLAHEMANTH,

You may try below steps to get rid off the error:

1. Take the backup of the '*pgadmin4.db*' file and then delete it.
2. Restart the pgAdmin4

Regards,
Rahul Shirsat.

On Mon, May 17, 2021 at 9:31 PM CHALLAHEMANTH <hemasonofcsrgk1998(at)gmail(dot)com>
wrote:

> I am trying to install Postgre SQl on windows 10 but after installation, I
> am
> getting a window named
>
> The pgAdmin 4 server could not be contacted:
>
> The details inside the window are
>
> pgAdmin Runtime Environment
> --------------------------------------------------------
> Python Path: "C:\Program Files\PostgreSQL\13\pgAdmin 4\python\python.exe"
> Runtime Config File:
> "C:\Users\hp\AppData\Roaming\pgadmin\runtime_config.json"
> pgAdmin Config File: "C:\Program Files\PostgreSQL\13\pgAdmin
> 4\web\config.py"
> Webapp Path: "C:\Program Files\PostgreSQL\13\pgAdmin 4\web\pgAdmin4.py"
> pgAdmin Command: "C:\Program Files\PostgreSQL\13\pgAdmin
> 4\python\python.exe
> -s C:\Program Files\PostgreSQL\13\pgAdmin 4\web\pgAdmin4.py"
> Environment:
> - ALLUSERSPROFILE: C:\ProgramData
> - APPDATA: C:\Users\hp\AppData\Roaming
> - CHROME_CRASHPAD_PIPE_NAME: \\.\pipe\crashpad_5852_YIMDLVLENKCBOENT
> - 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: DESKTOP-TK8J1MC
> - ComSpec: C:\WINDOWS\system32\cmd.exe
> - DriverData: C:\Windows\System32\Drivers\DriverData
> - FPS_BROWSER_APP_PROFILE_STRING: Internet Explorer
> - FPS_BROWSER_USER_PROFILE_STRING: Default
> - HOMEDRIVE: C:
> - HOMEPATH: \Users\hp
> - LOCALAPPDATA: C:\Users\hp\AppData\Local
> - LOGONSERVER: \\DESKTOP-TK8J1MC
> - NUMBER_OF_PROCESSORS: 4
> - OneDrive: C:\Users\hp\OneDrive
> - OS: Windows_NT
> - Path:
>
> C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\OpenSSH\;C:\Program
> Files\Java\jdk\bin;C:\Program
> Files\Java\jre\bin;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\Program
> Files\Microsoft SQL
>
> Server\130\Tools\Binn\;G:\MATLAB\R2021a\bin;C:\Users\hp\AppData\Local\Programs\Python\Python38\Scripts\;C:\Users\hp\AppData\Local\Programs\Python\Python38\;C:\Python27;C:\Python27\Scripts;C:\Program
> Files\JetBrains\PyCharm Community Edition
>
> 2020.2\bin;;C:\Users\hp\AppData\Local\Microsoft\WindowsApps;;C:\Users\hp\AppData\Local\Programs\Microsoft
> VS Code\bin
> - PATHEXT: .COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC
> - PGADMIN_INT_KEY: 4f99a0f6-11d8-4b90-8d64-96f9d2eda282
> - PGADMIN_INT_PORT: 51575
> - PGADMIN_SERVER_MODE: OFF
> - PROCESSOR_ARCHITECTURE: AMD64
> - PROCESSOR_IDENTIFIER: Intel64 Family 6 Model 78 Stepping 3,
> GenuineIntel
> - PROCESSOR_LEVEL: 6
> - PROCESSOR_REVISION: 4e03
> - ProgramData: C:\ProgramData
> - ProgramFiles: C:\Program Files
> - ProgramFiles(x86): C:\Program Files (x86)
> - ProgramW6432: C:\Program Files
> - PSModulePath: C:\Program
>
> Files\WindowsPowerShell\Modules;C:\WINDOWS\system32\WindowsPowerShell\v1.0\Modules
> - PUBLIC: C:\Users\Public
> - PyCharm Community Edition: C:\Program Files\JetBrains\PyCharm Community
> Edition 2020.2\bin;
> - SESSIONNAME: Console
> - SystemDrive: C:
> - SystemRoot: C:\WINDOWS
> - TEMP: C:\Users\hp\AppData\Local\Temp
> - TMP: C:\Users\hp\AppData\Local\Temp
> - USERDOMAIN: DESKTOP-TK8J1MC
> - USERDOMAIN_ROAMINGPROFILE: DESKTOP-TK8J1MC
> - USERNAME: hp
> - USERPROFILE: C:\Users\hp
> - VBOX_MSI_INSTALL_PATH: C:\Program Files\Oracle\VirtualBox\
> - windir: C:\WINDOWS
> --------------------------------------------------------
>
> Traceback (most recent call last):
> File "C:\Program Files\PostgreSQL\13\pgAdmin 4\web\pgAdmin4.py", line 98,
> in <module>
> app = create_app()
> File "C:\Program Files\PostgreSQL\13\pgAdmin 4\web\pgadmin\__init__.py",
> line 347, in create_app
> if not os.path.exists(SQLITE_PATH) or get_version() == -1:
> File "C:\Program Files\PostgreSQL\13\pgAdmin
> 4\web\pgadmin\setup\db_version.py", line 19, in get_version
> return version.value
> AttributeError: 'NoneType' object has no attribute 'value'
>
>
>
>
> I am unable to even understand whats the thing that I can do. I am hoping
> for help from you. Please look into this.
>
>
>
>
> --
> Sent from:
> https://www.postgresql-archive.org/PostgreSQL-pgadmin-support-f2191615.html
>
>
>

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