Original post
Hi, I'm encountering a JavaScript error when using HypeRate Desktop in Windows 11.
Whenever I click BLUETOOTH DIRECT > "Scan for devices" button, I get the following error:
**Error:**
A Javascript error occurred in the main process
`Uncaught Exception: Error: \\?\C:\Users\[user]\AppData\Local\Temp\*.tmp.node is not a valid Win32 application.`
(It seems to fail when loading `@abandonware\noble\lib\win\bindings.js`)
**Environment:**
* OS: Windows 11 (64-bit)
* HypeRate Desktop Version: v1.0.4 (I downloaded from https://github.com/alexholzreiter/HypeRate-Desktop-V2/releases/tag/v1.0.4 today, HypeRate Desktop Setup 1.0.4-x64.exe)
* Heart Rate Monitor: Coospo H808S
**What I have tried so far:**
* Cleared the related `.tmp.node` files in the `%temp%` folder.
* Installed the latest Visual C++ Redistributable (x64) and Restarted my PC.
* Completely uninstalled and reinstalled the latest version of HypeRate Desktop.
Note:
I have also confirmed that my BLE device connects and works properly
when accessing the following website via Chrome:
https://webbluetooth.hyperate.io
Unfortunately, the issue still persists. The `.tmp.node` file name changes upon restart, but the error remains the same.
Could this be an issue with the current build, or is there any workaround for this?
(Sorry, I couldn't find an appropriate tag in this forum, so I selected "Extensions". It would be great if you could add a "Desktop App" tag !)
Community Member•5/21/2026, 1:13:10 AM
BLUETOOTH DIRECT does not work on HypeRate Desktop Windows 11
Community Member•5/21/2026, 1:06:13 PM
thx a lot for reporting, we are currently working to fix this bug! Will ping you here when we are rdy! 🤘
Community Member•5/21/2026, 7:36:52 PM
would you mind downloading the new "pre" version - if this fixes your issue? Would be great to hear "positive" feedback 🙏 here the link: https://github.com/alexholzreiter/HypeRate-Desktop-V2/releases/download/v1.0.4/HypeRate.Desktop.Setup.1.0.4.exe
Community Member•5/23/2026, 8:31:46 AM
Thank you for getting back to me so quickly!
I tried the new pre version from the link, and I can confirm that it completely fixed the issue. The error no longer appears, and my BLE device connected successfully.
I really appreciate your help! (Also thanks for adding Desktop App Tag ❤️
Community Member•5/23/2026, 11:41:03 AM
same as mine, using mi band 10 on win 10 latest.. but work great when using app on ios
Community Member•5/23/2026, 11:48:50 AM
work using new "pre" version.. thanks, but i have question.. can i use https://www.hyperate.io/pulse-dynamics-ecg?id= this widget using desktop apps ? cz im using that widgwt on my stream
Community Member•5/23/2026, 11:52:04 AM
I already using a widget like this on my stream with an iOS heart rate app. Can I use the widget using only the Hyperate PC app?
Community Member•5/23/2026, 11:54:30 AM
maybe that's a good idea to bring all of our current web widgets to the desktop app....let me think about it and check if this would be aneasy task 😉
Community Member•5/23/2026, 12:01:26 PM
nice.. I would love to use it