Using pynrfjprog has error "Could not find module highlevelnrfjprog.dll" when running on Windows 10

[DevinCallahan]

I have a Python script that I am wanting to use to flash our devices at manufacturing that uses pynrfjprog.

When running the script on Windows I get this error:

"FileNotFoundError: Could not find module 'C:\Users\devin\AppData\Local\Programs\Python\Python38\lib\site-packages\pynrfjprog\lib_x64\highlevelnrfjprog.dll' (or one of its dependencies). Try using the full path with constructor syntax."

I have verified that highlevelnrfjprog.dll IS at that location, so I am assuming "one of its dependencies" is also not installed.

 

I have installed the nRF Command Line Tools for 64-bit Windows, and when I run "nrfjprog" in a PowerShell, nothing happens, and if I run "nrfjprog" in a Command Prompt I get the error "The code execution cannot proceed because MSVCP140.dll was not found.  Reinstalling the program may fix this problem".

Is that error somehow related and what can I do to resolve it?

Thank you!

[Edvin]

Hello,

Have you installed J-Link? If not, you can install find it on Segger.com:

https://www.segger.com/downloads/jlink/

If that doesn't work:

Did you try to uninstall and reinstall nRF Command Line Tools?

Do you have any IDEs installed on your computer? If not, can you try to install Segger Embedded Studio?

Best regards,

Edvin

[DevinCallahan]

I unfortunately don't know exactly what fixed it (I've been trying a lot of things) but I did use the "Toolchain Manager" app in nRF Connect to install the Connect SDK and I installed the Nordic version of Segger Embedded Studio.  One of those appears to have installed whatever I was missing.

nrfjprog from the command prompt no longer has an error when I run it and pynrfjprog is also working.

Thank you!