> For the complete documentation index, see [llms.txt](https://help.boomerang3.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.boomerang3.com/logger-card-client-user-manual/troubleshooting/error-was-encountered..-message-during-import-of-mission.md).

# “Error was encountered..” message during import of mission

Import of mission will fail if calibration values are incorrect or unreadable.

At the end of “Store mission” procedure a problem with read calibration data from sensor memory will occur with message box as below:

<p align="center"><img src="/files/ef5846df141a2d42d3cefd2f3eea01b203f86dd6" alt=""></p>

To resolve this issue set the calibration values for sensor as described in [Calibration](/logger-card-client-user-manual/calibration.md) chapter.


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