Hi Vincent, I've tried the following command: v.patch -ae input=sugarcane,sugarcane_update output=sugarcane --o
it returns: ERROR: Output vector map <sugarcane> is used as input I'm using the -e and -a flags and overwriting the old vector layer, but the message is the same. I'm doing anything wrong? Both vector maps have exactly the same columns and there aren't identical attributes: Cat (integer) Cane_id(Integer) thanks, Thyberio
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