Re: Pgadmin 4 fatal error : The pgAdmin 4 server could not be contacted

Hi

We have figured out the issue, it is because of the latest version of the
'itsdangerous' python package which was released on 12th May. We are
working on fixing the issue with EDB Installers.

Meanwhile, you can perform the following steps:

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 v5.2 from
https://www.postgresql.org/ftp/pgadmin/pgadmin4/v5.2/windows/
4. Install and Launch 'pgAdmin4 v5'.

On Tue, May 18, 2021 at 3:47 PM pgadminsucks <ecmpractitioner(at)gmail(dot)com>
wrote:

> Installed version 13 on Windows 10 64-bit. When starting pgadmin 4, got
> error. Tried
>
> 1. to start as admin but no luck
> 2. uninstalled and installed again no luck
> 3. cleared C:\Users\xxx\AppData\Roaming\pgadmin contents but no luck
>
> this is the error message I get when starting pgadmin 4
>
> pgAdmin Runtime Environment
> --------------------------------------------------------
> Python Path: "D:\installed\PostgreSQL\13\pgAdmin 4\python\python.exe"
> Runtime Config File:
> "C:\Users\manju\AppData\Roaming\pgadmin\runtime_config.json"
> pgAdmin Config File: "D:\installed\PostgreSQL\13\pgAdmin 4\web\config.py"
> Webapp Path: "D:\installed\PostgreSQL\13\pgAdmin 4\web\pgAdmin4.py"
> pgAdmin Command: "D:\installed\PostgreSQL\13\pgAdmin 4\python\python.exe -s
> D:\installed\PostgreSQL\13\pgAdmin 4\web\pgAdmin4.py"
> Environment:
> - ALLUSERSPROFILE: C:\ProgramData
> - APPDATA: C:\Users\manju\AppData\Roaming
> - BONJOUR_SDK_HOME: D:\installed\Bonjour SDK\
> - CHROME_CRASHPAD_PIPE_NAME: \\.\pipe\crashpad_15772_XNAJSOZMZQFLWKIR
> - 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: VAISHNAV
> - ComSpec: C:\WINDOWS\system32\cmd.exe
> - DriverData: C:\Windows\System32\Drivers\DriverData
> - GRADLE_HOME: D:\installed\gradle-6.2.1-all\gradle-6.2.1
> - HADOOP_HOME: D:\hadoop
> - HOMEDRIVE: C:
> - HOMEPATH: \Users\manju
> - IntelliJ IDEA: D:\installed\JetBrains\IntelliJ IDEA 2019.3.3\bin;
> - IntelliJ IDEA Community Edition: D:\installed\JetBrains\IntelliJ IDEA
> Community Edition 2019.3\bin;
> - JAVA_HOME: D:\installed\Java\jdk-13.0.1
> - LOCALAPPDATA: C:\Users\manju\AppData\Local
> - LOGONSERVER: \\VAISHNAV
> - MAVEN_HOME: D:\installed\apache-maven-3.6.3
> - NUMBER_OF_PROCESSORS: 8
> - OneDrive: C:\Users\manju\OneDrive
> - OneDriveConsumer: C:\Users\manju\OneDrive
> - OS: Windows_NT
> - Path:
>
> D:\installed\oraclexe\app\oracle\product\11.2.0\server\bin;C:\oraclexe\app\oracle\product\11.2.0\server\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\WINDOWS\System32\OpenSSH\;D:\installed\Java\jdk-13.0.1\bin;D:\installed\Brackets\command;D:\installed\Microsoft
> VS Code\bin;C:\Program Files (x86)\Windows Kits\10\Windows Performance
>
> Toolkit\;D:\installed\sbt\bin;D:\hadoop\bin;D:\installed\gradle-6.2.1-all\gradle-6.2.1\bin;D:\installed\apache-maven-3.6.3\bin;C:\Program
> Files\Intel\WiFi\bin\;C:\Program Files\Common
>
> Files\Intel\WirelessCommon\;D:\installed\mongodb-win32-x86_64-windows-4.4.0\bin;D:\installed\Git\cmd;C:\Program
> Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program
> Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program
> Files\Microsoft SQL Server\Client SDK\ODBC\170\Tools\Binn\;C:\Program Files
> (x86)\Microsoft SQL Server\150\Tools\Binn\;C:\Program Files\Microsoft SQL
> Server\150\Tools\Binn\;C:\Program Files\Microsoft SQL
> Server\150\DTS\Binn\;C:\Program Files (x86)\Microsoft SQL
> Server\150\DTS\Binn\;C:\Program Files\Azure Data
> Studio\bin;D:\installed\PostgreSQL\13\pgAdmin
>
> 4\bin;C:\Users\manju\AppData\Local\Microsoft\WindowsApps;D:\installed\JetBrains\IntelliJ
> IDEA Community Edition 2019.3\bin;D:\installed\JetBrains\IntelliJ IDEA
> 2019.3.3\bin;C:\Users\manju\AppData\Local\Microsoft\WindowsApps
> - PATHEXT: .COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC
> - PGADMIN_INT_KEY: 69a422c9-47f9-468e-b3e0-64b91978eb5b
> - PGADMIN_INT_PORT: 50133
> - PGADMIN_SERVER_MODE: OFF
> - PROCESSOR_ARCHITECTURE: AMD64
> - PROCESSOR_IDENTIFIER: Intel64 Family 6 Model 142 Stepping 10,
> GenuineIntel
> - PROCESSOR_LEVEL: 6
> - PROCESSOR_REVISION: 8e0a
> - 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;C:\Program
> Files (x86)\Microsoft SQL Server\150\Tools\PowerShell\Modules\
> - PUBLIC: C:\Users\Public
> - SBT_HOME: D:\installed\sbt\
> - SystemDrive: C:
> - SystemRoot: C:\WINDOWS
> - TEMP: C:\Users\manju\AppData\Local\Temp
> - TMP: C:\Users\manju\AppData\Local\Temp
> - USERDOMAIN: VAISHNAV
> - USERDOMAIN_ROAMINGPROFILE: VAISHNAV
> - USERNAME: manju
> - USERPROFILE: C:\Users\manju
> - windir: C:\WINDOWS
> --------------------------------------------------------
>
> 2021-05-17 12:58:42,013: INFO pgadmin:
> ########################################################
>
> 2021-05-17 12:58:42,013: INFO pgadmin: Starting pgAdmin 4 v5.2...
> 2021-05-17 12:58:42,014: INFO pgadmin:
> ########################################################
> 2021-05-17 12:58:42,014: DEBUG pgadmin: Python syspath:
> ['D:\\installed\\PostgreSQL\\13\\pgAdmin 4\\web',
> 'D:\\installed\\PostgreSQL\\13\\pgAdmin 4\\python\\python38.zip',
> 'D:\\installed\\PostgreSQL\\13\\pgAdmin 4\\python',
> 'D:\\installed\\PostgreSQL\\13\\pgAdmin 4\\python\\lib\\site-packages']
>
> 2021-05-17 12:58:42,016: DEBUG pgadmin: Available translations:
> [Locale('cs'), Locale('de'), Locale('es'), Locale('fr'), Locale('it'),
> Locale('ja'), Locale('ko'), Locale('pl'), Locale('ru'), Locale('zh')]
>
> Traceback (most recent call last):
> File "D:\installed\PostgreSQL\13\pgAdmin 4\web\pgAdmin4.py", line 98, in
> <module>
> app = create_app()
> File "D:\installed\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 "D:\installed\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'
>
>
>
>
>
> --
> Sent from:
> https://www.postgresql-archive.org/PostgreSQL-pgadmin-support-f2191615.html
>
>
>

--
*Thanks & Regards*
*Akshay Joshi*
*pgAdmin Hacker | Principal Software Architect*
*EDB Postgres <http://edbpostgres.com>*

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