Fatal Error when starting PgAdmin

[easoftware@xxxxxxxxx]

I am on Windows 10. I have had PgAdmin working. It works, then I stop for the day. After a system reboot, I get a fatal error.

I have tried uninstalling/reinstalling. I have also tried uninstalling, delete the pgadmin folder in C:\Users\myname\AppData\Roaming.

Here is the error message:

The pgAdmin4 server could not be contacted:

pgAdmin Runtime Environment
--------------------------------------------------------
Python Path: "C:\Program Files\PostgreSQL\15\pgAdmin 4\python\python.exe"
Runtime Config File: "C:\Users\myname\AppData\Roaming\pgadmin\runtime_config.json"
pgAdmin Config File: "C:\Program Files\PostgreSQL\15\pgAdmin 4\web\config.py"
Webapp Path: "C:\Program Files\PostgreSQL\15\pgAdmin 4\web\pgAdmin4.py"
pgAdmin Command: "C:\Program Files\PostgreSQL\15\pgAdmin 4\python\python.exe -s C:\Program Files\PostgreSQL\15\pgAdmin 4\web\pgAdmin4.py"
Environment:
  - ALLUSERSPROFILE: C:\ProgramData
  - APPDATA: C:\Users\myname\AppData\Roaming
  - ChocolateyInstall: C:\ProgramData\chocolatey
  - ChocolateyLastPathUpdate: 132845423331295845
  - CHROME_CRASHPAD_PIPE_NAME: \\.\pipe\crashpad_1180_IKBMLRWCONLBHYQA
  - 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-9IMNGNF
  - ComSpec: C:\WINDOWS\system32\cmd.exe
  - DriverData: C:\Windows\System32\Drivers\DriverData
  - HOMEDRIVE: C:
  - HOMEPATH: \Users\myname
  - LOCALAPPDATA: C:\Users\myname\AppData\Local
  - LOGONSERVER: \\DESKTOP-9IMNGNF
  - MYSQLCONNECTOR_ASSEMBLIESPATH: C:\Program Files (x86)\MySQL\Connector NET 8.0\Assemblies\v4.5.2
  - NUMBER_OF_PROCESSORS: 12
  - OneDrive: C:\Users\myname\OneDrive
  - OneDriveConsumer: C:\Users\myname\OneDrive

  - OS: Windows_NT
  - Path: C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Python310\Scripts\;C:\Python310\;c:\program files (x86)\intel\intel(r) management engine components\icls\;c:\program files\intel\intel(r) management engine components\icls\;c:\windows\system32;c:\windows;c:\windows\system32\wbem;c:\windows\system32\windowspowershell\v1.0\;c:\windows\system32\openssh\;c:\program files (x86)\intel\intel(r) management engine components\dal;c:\program files\intel\intel(r) management engine components\dal;c:\program files (x86)\intel\intel(r) management engine components\ipt;c:\program files\intel\intel(r) management engine components\ipt;c:\program files\microsoft sql server\130\tools\binn\;c:\program files\nvidia corporation\nvidia nvdlisr;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\system32\wbem;C:\WINDOWS\system32\windowspowershell\v1.0\;C:\WINDOWS\system32\openssh\;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files\PowerShell\6\;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\WINDOWS\System32\OpenSSH\;C:\ProgramData\chocolatey\bin;C:\Program Files\nodejs\;C:\Program Files\dotnet\;C:\Program Files\Git\cmd;C:\Program Files\PostgreSQL\15\bin;C:\Program Files\MySQL\MySQL Shell 8.0\bin\;C:\Users\myname\AppData\Local\Programs\Python\Python37\Scripts\;C:\Users\myname\AppData\Local\Programs\Python\Python37\;C:\Users\myname\AppData\Local\Microsoft\WindowsApps;C:\Users\myname\AppData\Local\Programs\Microsoft VS Code\bin;C:\Users\myname\AppData\Local\Microsoft\WindowsApps;C:\Users\myname\AppData\Roaming\Python\Python37\Scripts;C:\Program Files\mingw-w64\x86_64-8.1.0-posix-seh-rt_v6-rev0\mingw64\bin;C:\Users\myname\AppData\Roaming\npm;C:\Program Files\PostgreSQL\15\bin;C:\Program Files\PostgreSQL\15\lib;C:\Users\myname\.dotnet\tools

  - PATHEXT: .COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC;.PY;.PYW
  - PGADMIN_INT_KEY: 54171450-f7ac-4ca4-aa60-17b4f7c19802
  - PGADMIN_INT_PORT: 63201
  - PGADMIN_SERVER_MODE: OFF
  - PROCESSOR_ARCHITECTURE: AMD64
  - PROCESSOR_IDENTIFIER: Intel64 Family 6 Model 158 Stepping 10, GenuineIntel
  - PROCESSOR_LEVEL: 6
  - PROCESSOR_REVISION: 9e0a
  - 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
  - SESSIONNAME: Console
  - SystemDrive: C:
  - SystemRoot: C:\WINDOWS
  - TEMP: C:\Users\myname\AppData\Local\Temp

  - TMP: C:\Users\myname\AppData\Local\Temp

  - USERDOMAIN: DESKTOP-9IMNGNF
  - USERDOMAIN_ROAMINGPROFILE: DESKTOP-9IMNGNF
  - USERNAME: Eric
  - USERPROFILE: C:\Users\myname
  - VS150COMCOMNTOOLS: C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\Common7\Tools\
  - VS160COMCOMNTOOLS: C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Common7\Tools\
  - windir: C:\WINDOWS
  - WIX: C:\Program Files (x86)\WiX Toolset v3.11\
--------------------------------------------------------

Total spawn time to start the pgAdmin4 server: 0.008 Sec
NOTE: Configuring authentication for DESKTOP mode.

Traceback (most recent call last):
  File "C:\Program Files\PostgreSQL\15\pgAdmin 4\web\pgAdmin4.py", line 102, in <module>
    app = create_app()
  File "C:\Program Files\PostgreSQL\15\pgAdmin 4\web\pgadmin\__init__.py", line 759, in create_app
    app.register_blueprint(module)
  File "C:\Program Files\PostgreSQL\15\pgAdmin 4\python\lib\site-packages\flask\scaffold.py", line 50, in wrapper_func
    return f(self, *args, **kwargs)
  File "C:\Program Files\PostgreSQL\15\pgAdmin 4\python\lib\site-packages\flask\app.py", line 1299, in register_blueprint
    blueprint.register(self, options)
  File "C:\Program Files\PostgreSQL\15\pgAdmin 4\web\pgadmin\browser\__init__.py", line 162, in register
    super().register(app, options)
  File "C:\Program Files\PostgreSQL\15\pgAdmin 4\web\pgadmin\utils\__init__.py", line 79, in register

    app.register_blueprint(module)
  File "C:\Program Files\PostgreSQL\15\pgAdmin 4\python\lib\site-packages\flask\scaffold.py", line 50, in wrapper_func
    return f(self, *args, **kwargs)
  File "C:\Program Files\PostgreSQL\15\pgAdmin 4\python\lib\site-packages\flask\app.py", line 1299, in register_blueprint
    blueprint.register(self, options)
  File "C:\Program Files\PostgreSQL\15\pgAdmin 4\web\pgadmin\browser\server_groups\__init__.py", line 132, in register
    super().register(app, options)
  File "C:\Program Files\PostgreSQL\15\pgAdmin 4\web\pgadmin\utils\__init__.py", line 79, in register
    app.register_blueprint(module)
  File "C:\Program Files\PostgreSQL\15\pgAdmin 4\python\lib\site-packages\flask\scaffold.py", line 50, in wrapper_func
    return f(self, *args, **kwargs)
  File "C:\Program Files\PostgreSQL\15\pgAdmin 4\python\lib\site-packages\flask\app.py", line 1299, in register_blueprint
    blueprint.register(self, options)
  File "C:\Program Files\PostgreSQL\15\pgAdmin 4\web\pgadmin\browser\server_groups\servers\__init__.py", line 325, in register
    super().register(app, options)
  File "C:\Program Files\PostgreSQL\15\pgAdmin 4\web\pgadmin\utils\__init__.py", line 79, in register
    app.register_blueprint(module)
  File "C:\Program Files\PostgreSQL\15\pgAdmin 4\python\lib\site-packages\flask\scaffold.py", line 50, in wrapper_func
    return f(self, *args, **kwargs)
  File "C:\Program Files\PostgreSQL\15\pgAdmin 4\python\lib\site-packages\flask\app.py", line 1299, in register_blueprint
    blueprint.register(self, options)
  File "C:\Program Files\PostgreSQL\15\pgAdmin 4\web\pgadmin\browser\server_groups\servers\databases\__init__.py", line 130, in register
    super().register(app, options)
  File "C:\Program Files\PostgreSQL\15\pgAdmin 4\web\pgadmin\utils\__init__.py", line 79, in register
    app.register_blueprint(module)
  File "C:\Program Files\PostgreSQL\15\pgAdmin 4\python\lib\site-packages\flask\scaffold.py", line 50, in wrapper_func
    return f(self, *args, **kwargs)
  File "C:\Program Files\PostgreSQL\15\pgAdmin 4\python\lib\site-packages\flask\app.py", line 1299, in register_blueprint
    blueprint.register(self, options)
  File "C:\Program Files\PostgreSQL\15\pgAdmin 4\web\pgadmin\browser\server_groups\servers\databases\schemas\__init__.py", line 165, in register
    from .views import view_blueprint as module
  File "C:\Program Files\PostgreSQL\15\pgAdmin 4\web\pgadmin\browser\server_groups\servers\databases\schemas\views\__init__.py", line 34, in <module>
    from pgadmin.misc.bgprocess.processes import BatchProcess, IProcessDesc
  File "C:\Program Files\PostgreSQL\15\pgAdmin 4\web\pgadmin\misc\bgprocess\__init__.py", line 20, in <module>
    from .processes import BatchProcess
  File "C:\Program Files\PostgreSQL\15\pgAdmin 4\web\pgadmin\misc\bgprocess\processes.py", line 17, in <module>
    import psutil
  File "C:\Program Files\PostgreSQL\15\pgAdmin 4\python\lib\site-packages\psutil\__init__.py", line 241, in <module>
    raise ImportError(msg)
ImportError: version conflict: 'C:\\Program Files\\PostgreSQL\\15\\pgAdmin 4\\python\\lib\\site-packages\\psutil\\_psutil_windows.cp310-win_amd64.pyd' C extension module was built for another version of psutil (5.9.3 instead of 5.9.5); you may try to 'pip uninstall psutil', manually remove C:\Program Files\PostgreSQL\15\pgAdmin 4\python\lib\site-packages\psutil\_psutil_windows.cp310-win_amd64.pyd or clean the virtual env somehow, then reinstall