# Error stating: "Parameters are missing ...COMPASS\_DEV\_ID..."

**URL:** <https://discuss.px4.io/t/error-stating-parameters-are-missing-compass-dev-id/12662>\
**Category:** QGroundControl\
**Created:** [August 27, 2019, 9:55am UTC](https://discuss.px4.io/t/error-stating-parameters-are-missing-compass-dev-id/12662 "2019-08-27T09:55:36Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![tjarzabek](https://discuss.px4.io/letter_avatar_proxy/v4/letter/t/34f0e0/32.png) [@tjarzabek](https://discuss.px4.io/u/tjarzabek)\
**Post date:** [August 27, 2019, 9:55am UTC](https://discuss.px4.io/t/error-stating-parameters-are-missing-compass-dev-id/12662/1 "2019-08-27T09:55:36Z")

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I am connecting QGC (Windows version 3.5.4) to Plane (fixed wing) vehicle (ArduPilot firmware 3.4.0).  
The vehicle has been correctly configured in MissionPlanner version 1.3.59.  
The vehicle works correctly with MissionPlanner.  
While connection vehicle to QGC, immediately I got error stating: “Parameters are missing …COMPASS\_DEV\_ID…”.  
I realized in MissionPlanner, there is no such a parameter available. Attached please find the error screenshot.  
Please advice.

I know, that the latest stable vehicle ArduPilot firmware release is 3.9.9. Should I upgrade?

 ![ErrMsg](https://discuss.px4.io/uploads/default/original/2X/7/7803b78d6d6a5a5dab1a110d0beeaa7651f1ab42.jpeg)

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**Author:** ![JulianOes](https://discuss.px4.io/user_avatar/discuss.px4.io/julianoes/32/30_2.png) [@JulianOes](https://discuss.px4.io/u/JulianOes)\
**Post date:** [August 27, 2019, 2:15pm UTC](https://discuss.px4.io/t/error-stating-parameters-are-missing-compass-dev-id/12662/2 "2019-08-27T14:15:30Z")

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For ArduPilot, please ask questions in [https://discuss.ardupilot.org/](https://discuss.ardupilot.org/)

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**Author:** ![DonLakeFlyer](https://discuss.px4.io/user_avatar/discuss.px4.io/donlakeflyer/32/3036_2.png) [@DonLakeFlyer](https://discuss.px4.io/u/DonLakeFlyer)\
**Post date:** [August 27, 2019, 5:45pm UTC](https://discuss.px4.io/t/error-stating-parameters-are-missing-compass-dev-id/12662/3 "2019-08-27T17:45:02Z")

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I don’t think MP complains about missing parameters in the same way QGC does. The fact that they are missing indicates something wrong on the firmware side though.

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**Author:** ![tjarzabek](https://discuss.px4.io/letter_avatar_proxy/v4/letter/t/34f0e0/32.png) [@tjarzabek](https://discuss.px4.io/u/tjarzabek)\
**Post date:** [August 28, 2019, 8:46am UTC](https://discuss.px4.io/t/error-stating-parameters-are-missing-compass-dev-id/12662/4 "2019-08-28T08:46:39Z")

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Many thanks. Definitely, it is GSC version problem. I tried GSC 3.4.0, 3.1.0, 3.0.2. Some errors disappeared. I am closing the issues as I will migrate to Pixhawk.

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<div class="post-metadata">

**Author:** ![DonLakeFlyer](https://discuss.px4.io/user_avatar/discuss.px4.io/donlakeflyer/32/3036_2.png) [@DonLakeFlyer](https://discuss.px4.io/u/DonLakeFlyer)\
**Post date:** [August 28, 2019, 4:38pm UTC](https://discuss.px4.io/t/error-stating-parameters-are-missing-compass-dev-id/12662/5 "2019-08-28T16:38:51Z")

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> [@tjarzabek](#):
>
> Definitely, it is GSC version problem. I tried GSC 3.4.0, 3.1.0, 3.0.2. Some errors disappeared.

That is because as you go back in time with QGC versions the required set of parameters that QGC needs changes. Also you can’t run really old builds against newer versions of firmware. It doesn’t really indicate a problem with QGC.