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Couldn't find device!
#1
Exclamation 
Anyone get a "Couldn't find device!" error when trying to flash a program to one of the Alchitry boards (in my case a Cu)?
Sometimes I get "Couldn't find device!" and sometimes I get:

org.usb4java.LibUsbException: USB error 5: LibUsb.open() failed: Entity not found
at com.alchitry.labs.hardware.usb.UsbDevice.usbFindAll(UsbDevice.java:218)
at com.alchitry.labs.hardware.usb.UsbUtil.getDevice(UsbUtil.java:46)
at com.alchitry.labs.hardware.usb.UsbUtil.openFtdiDevice(UsbUtil.java:91)
at com.alchitry.labs.hardware.loaders.CuLoader.program(CuLoader.java:45)
at com.alchitry.labs.hardware.loaders.ProjectLoader.load(ProjectLoader.java:48)
at com.alchitry.labs.project.Project$8.run(Project.java:1539)


I have tried two different USB-C cables, both confirmed to be data cables and every single USB port and hub on my PC.
Thanks.
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#2
I wanted to double-check that the driver process was done correctly so I went through and took a look:
[Image: tBQ3z1Z.png]
Both Interface 0 and 1 have the WinUSB driver and seem fine to me. So idk what else to do to troubleshoot, considering this is completely new hardware and I have almost no experience.
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#3
Did you ever find a solution to this? Just fired up my Cu and received the same error.
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#4
I ended up working with the board on a different PC, so I don't have a good answer...Maybe some conflicting USB devices on the original PC...
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#5
(11-20-2019, 01:28 PM)flexo Wrote: I ended up working with the board on a different PC, so I don't have a good answer...Maybe some conflicting USB devices on the original PC...

it's weird because I've literally just reinstalled windows - will try a few other things I guess!

update: Zadig seems to have fixed it - had some other driver than the WinUSB one. I feel like I know what I'm doing, almost!
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