Request help using geotiffinterp function.

I am attempting to use the geotiffinterp function as follows:

geotiffinterp('MODAL2_D_CLD_FR_2017-01-01_rgb_3600x1800.tiff', lat(1), lon(1))

However, I get a laundry list of errors: 'projfwd', 'projaccess', 'proj2gtif'.

Am I calling the function incorrectly? I would like to be able to return the GeoTIFF value from my file at a certain lat/lon point.

I appreciate you taking the time to help me solve this conundrum.

Thank you.

[Steven Lord]

Can you show the full text of the error message you received? Copy and paste everything displayed in red in the Command Window.