EV3 Device Manager fail

EV3
1

Anyone else having problems using the EV3 Device Manager web page used to update firmware?

DevManFail
DevManFail767×320 27.5 KB

I get this error about needing to download and install, and it’s already installed. This is on both my desktop and my laptop. I’ve run the installation again, run the installation in “Repair” mode, no fix.

I can’t run the executable from the command line:
ExeFail

I’m running Chrome version 78 on my desktop, and was running version 77 on my laptop which both failed. Upgraded the laptop to version 78 and it still fails.
LaptopWinVer

The last time I ran the Device Manager successfully was probably last August.

2

Hi there. We just heard from LEGO - this should be fixed now. Please verify and let us know!
Thanks for your patience (and thanks for reporting the bug!)
Jacqueline

1 Like
3

Hi Jacqueline,
It’s fixed. I had to reinstall the Download Manager, but that’s sort of expected. Works on both my desktop and laptop.
Thanks.
Walt

5

the EV3 Device Manager service does not start for me. Installer is revision number {BD6D338F-8651-41D8-8C9D-A68507B90858}, OS is Windows 10 Home.

In the application event log, I find this event:

<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
- <System>
  <Provider Name=".NET Runtime" /> 
  <EventID Qualifiers="0">1026</EventID> 
  <Version>0</Version> 
  <Level>2</Level> 
  <Task>0</Task> 
  <Opcode>0</Opcode> 
  <Keywords>0x80000000000000</Keywords> 
  <TimeCreated SystemTime="2021-09-25T08:50:36.2991885Z" /> 
  <EventRecordID>6562</EventRecordID> 
  <Correlation /> 
  <Execution ProcessID="0" ThreadID="0" /> 
  <Channel>Application</Channel> 
  <Computer>DESKTOP-GT3FEJU</Computer> 
  <Security /> 
  </System>
- <EventData>
  <Data>Toepassing: EV3DeviceManager.exe Framework-versie: v4.0.30319 Beschrijving: het proces is beëindigd als gevolg van een onverwerkte uitzondering. Uitzonderingsinformatie: System.DllNotFoundException bij Calamari.Casper.HidApi.HidApiNativeMethods.hid_enumerate(UInt16, UInt16) bij Calamari.Casper.HidApi.HidApiDiscoveryService.EnumerateDevices() bij Calamari.Casper.HidApi.HidApiDiscoveryService.EnumerateThreadMain() bij System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean) bij System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean) bij System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object) bij System.Threading.ThreadHelper.ThreadStart()</Data> 
  </EventData>
  </Event>