Cannot find PPK2 after upgrade to nRF Connect for Desktop v3.8.0

[csteaderman]

Launched nRF Connect for Desktop this morning (v3.7.0) and was prompted that an update was available. Performed the update as well as child packages. PPK was updated as a result. Now, I cannot connect to the PPK2. I get the following displayed in the PPK App:

09:50:15.846 Application data folder: C:\Users\charlies.BURNSVILLE\AppData\Roaming\nrfconnect\pc-nrfconnect-ppk

09:50:16.691 Error while probing devices: EnumerateWorker json error

Complete log file contents:

2021-11-03T14:50:15.846Z INFO Application data folder: C:\Users\charlies.BURNSVILLE\AppData\Roaming\nrfconnect\pc-nrfconnect-ppk
2021-11-03T14:50:15.983Z DEBUG App pc-nrfconnect-ppk v3.2.0 official
2021-11-03T14:50:15.983Z DEBUG App path: C:\Users\charlies.BURNSVILLE\.nrfconnect-apps\node_modules\pc-nrfconnect-ppk
2021-11-03T14:50:15.983Z DEBUG nRFConnect 3.8.0 is not supported by the app (^3.8.0)
2021-11-03T14:50:15.984Z DEBUG nRFConnect path: C:\Users\charlies.BURNSVILLE\AppData\Local\Programs\nrfconnect\resources\app.asar
2021-11-03T14:50:15.984Z DEBUG HomeDir: C:\Users\charlies.BURNSVILLE
2021-11-03T14:50:15.984Z DEBUG TmpDir: C:\Users\charlies.BURNSVILLE\AppData\Local\Temp
2021-11-03T14:50:16.691Z ERROR Error while probing devices: EnumerateWorker json error

[Marte Myrvold]

Hi,

There seem to be an issue with discovering devices in the newest version of nRF Connect for Desktop. I have reported this to the developers.

Best regards,

Marte

[csteaderman]

When do you think I will have a response? Unfortunately, I am unable to continue my power optimization development. :-(

[Marte Myrvold]

Hi,

I apologize for the inconvenience.

They are looking into it already, but I am not sure how long it will take to solve. Someone reported restarting nRF Connect for Desktop without changing anything else sometimes helped, so you can try this and see if you are able to get it working using this for now. 

Best regards,

Marte

[csteaderman]

I have tried restarting the applications, uninstalling and reinstalling the applications, deleting configuration file folders, but nothing has worked. I will be patient. ;-)

[Marte Myrvold]

Hi,

Our developers are still looking into this issue. In the meantime, a temporary workaround is to downgrade to 3.7 and install app versions compatible with 3.7:

1. Download the latest 3.7 version of nRF Connect for Desktop from https://www.nordicsemi.com/Products/Development-tools/nRF-Connect-for-desktop/Download?lang=en#infotabs (for macOS this is 3.7.2, for Windows and Linux 3.7.1).
2. After starting nRF Connect for Desktop 3.7 a prompt will come up about the 3.8 upgrade. Click “No” on this.
3. In the Settings, click on “Add source”, enter the URL http://developer.nordicsemi.com/.pc-tools/nrfconnect-apps/3.7-apps/apps.json and click “Add”.
4. Back in the list of all apps, all apps should show up twice now, one with “official” below them and one with “3.7 compatible apps” below them. If you want to hide the incompatible versions, click on “Filter” and deselect “Official”.
5. Install the apps you need in the old versions and use them.

I will let you know when the issue is fixed, or if I have any other updates.

Best regards,

Marte

[Marte Myrvold]

Hi,

Our developers have found that having a JLink device, such as JLink Lite or JLink Plus debuggers, connected to your computer without the device being connected to anything (DK/SoC), will cause this issue. This will be fixed in a new release of nRF Connect for Desktop. I will notify you when this is released. Until then, their solution is to disconnect all JLink devices that are not connected to anything.

Best regards,

Marte

[Marte Myrvold]

Hi,

We have just released v3.9.0 of nRF Connect for Desktop, which includes fixes to make enumeration more robust and increase the timeout when enumeration takes a long time. Hopefully, this will solve the issue of devices not showing in device list. The version is not on the download page yet, but you can update to it directly in the app, and you can find the release and release notes here nRF Connect for Desktop releases.

Best regards,

Marte