Invalid signature of the calibration file 'sensor_frame.xml'

Introduction

Problem description

The calibration file sensor_frame.xml has an invalid signature. This usually happens when a file is opened or copied on windows.

Scope

Applies to: NavVis M6 mapping data

Troubleshooting procedure

1. Open the rec sensor_frame.xml file.

2. Check which trolley serial by looking in the file under <Hardware> <Model>M6-0</Model> <Serial>M6-0-001</Serial>.

3. Check the revision by looking under <CalibrationInfo> <CalibrationInfo> <Name>rev3</Name> <ValidFrom>27/11/2016</ValidFrom>.

4. Navigate to /opt/NavVis/mapper/share/navvis_mapper/urdf/calibration and search for sensor_frame_serial_revision (i.e. sensor_frame_serial_M6-0-002_rev0.xml).

5. Using a file comparison tool, check that the contents of sensor_frame in rec and the one you just found are the same, except for whitespace.

6. Copy and rename the sensor frame and signature to the rec of the failed Datasets.

7. Try processing again.