Home Forums Software Development Callibration Crash – EyeX with Rex

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    Ian Smith

    Using Tobii.Eye.Experience_0.8.3.249-alpha.zip and Tobii REX for Developers, the callibration simply crashes and restarts. Is the Tobii Eye Experience and EyeX system supposed to work with the REX? I have the 1.2.2 USB-HID drivers installed.

    From the Gaze Tools, I also get a crash attempting to switch firmware versions to the TCP/IP version.
    C:\Tobii\TobiiGazeSdk-Tools->fwupgrade32.exe –auto rexdevlaptop_firmware_1.0.5.25169.20130705.1446.root.tobiipkg
    Tobii Firmware Upgrade Tool

    (Additional Details)
    Problem Event Name: APPCRASH
    Application Name: fwupgrade32.exe
    Application Version:
    Application Timestamp: 52f4b97a
    Fault Module Name: MSVCR110.dll
    Fault Module Version: 11.0.51106.1
    Fault Module Timestamp: 5098858e
    Exception Code: 40000015
    Exception Offset: 000a327c
    OS Version: 6.1.7601.
    Locale ID: 1033
    Additional Information 1: c4fe
    Additional Information 2: c4fe66550a2d9b041c4a40f0ea5f7dd1
    Additional Information 3: 3166
    Additional Information 4: 31664120068fe968ed107a8a770aeb32

    This computer has been able to run the 32 and 64bit versions fine. Other 64 bit computers have been crashing despite the myriad of MSVCR*.DLL files I’ve attempted. The 32 bit code works on the 64 bit OS fine.

    Ian Smith

    Eyex with REX – I wasn’t able to solve the issue with crashing calibration.

    I was able to get the firmware updated by adding the –no-version-check option. Having the program crash instead of display an error is a suggestion I would make to prevent more questions like mine.


    Hi Ian,
    the REX is certainly supposed to work with the EyeX Engine, so I’m surprised to hear about the crashing calibration. I have a hunch of what could be wrong; let’s continue this discussion off the forum.


    Hi, I’m not sure its connected.
    I get a crash when running the calibration in the sample app.
    Eyetracker exception 20000505
    What is that?

    Same thing on 3 different computers, running win 7 & 8
    Using Tobii IS Drivers_1.3.5 – for USB TCP/IP (and same thing with the older driver).

    My sample app using the tobiis minified tracker lib works (but it has no calibration functionality)



    Hi Henke,
    the error code 20000505 means “not authorized”, so I don’t think it’s the same issue. It’s what I would expect to see when trying to use the Tobii Analytics SDK with a REX eye tracker… could that be an explanation? (REX works only with the Gaze SDK and the EyeX SDK).

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