1Error: swap_columns: wrong column argument: d2. 2Error: swap_columns: wrong column argument: d2. 3Error: swap_columns: wrong column argument: d2. 4Error: swap_columns: wrong column argument: d2. 5Error: swap_columns: wrong column argument: d2. 6Error: swap_columns: wrong column argument: d2. 7Error: swap_columns: wrong column argument: d2. 8Error: swap_columns: wrong column argument: d2. 9Error: swap_columns: wrong column argument: d2. 10Error: swap_columns: wrong column argument: d2. 11Error: swap_columns: wrong column argument: d2. 12Error: swap_columns: wrong column argument: d2. 13Error: swap_columns: wrong column argument: d2. 14Error: swap_columns: wrong column argument: d2. 15Error: swap_columns: wrong column argument: d2. 16Error: swap_columns: wrong column argument: d2. 17Error: swap_columns: wrong column argument: d2. 18Error: swap_columns: wrong column argument: d2. 19Error: swap_columns: wrong column argument: d2. 20Error: swap_columns: wrong column argument: d2. 21Error: swap_columns: wrong column argument: d2. 22Error: swap_columns: wrong column argument: d2. 23Error: swap_columns: wrong column argument: d2. 24Error: swap_columns: wrong column argument: d2. 25Error: swap_columns: wrong column argument: d2. 26Error: swap_columns: wrong column argument: d2. 27Error: swap_columns: wrong column argument: d2. 28Error: swap_columns: wrong column argument: d2. 29Error: swap_columns: wrong column argument: d2. 30Error: swap_columns: wrong column argument: d2. 31Error: swap_columns: wrong column argument: d2. 32Error: swap_columns: wrong column argument: d2. 33Error: swap_columns: wrong column argument: d2. 34Error: swap_columns: wrong column argument: d2. 35Error: swap_columns: wrong column argument: d2. 36Error: swap_columns: wrong column argument: d2. 37Error: swap_columns: wrong column argument: d2. 38Error: swap_columns: wrong column argument: d2. 39Error: swap_columns: wrong column argument: d2. 40Error: swap_columns: wrong column argument: d2. 41Error: swap_columns: wrong column argument: d2. 42Error: swap_columns: wrong column argument: d2. 43Error: swap_columns: wrong column argument: d2. 44Error: swap_columns: wrong column argument: d2. 45Error: swap_columns: wrong column argument: d2. 46Error: swap_columns: wrong column argument: d2. 47Error: swap_columns: wrong column argument: d2. 48Error: swap_columns: wrong column argument: d2. 49Error: swap_columns: wrong column argument: d2. 50Error: swap_columns: wrong column argument: d2. 51Error: swap_columns: wrong column argument: d2. 52Error: swap_columns: wrong column argument: d2. 53Error: swap_columns: wrong column argument: d2. 54Error: swap_columns: wrong column argument: d2. 55Error: swap_columns: wrong column argument: d2. 56Error: swap_columns: wrong column argument: d2. 57Error: swap_columns: wrong column argument: d2. 58Error: swap_columns: wrong column argument: d2. 59Error: swap_columns: wrong column argument: d2. 60Error: swap_columns: wrong column argument: d2. 61Error: swap_columns: wrong column argument: d2. 62Error: swap_columns: wrong column argument: d2. 63Error: swap_columns: wrong column argument: d2. 64Error: swap_columns: wrong column argument: d2. 65Error: swap_columns: wrong column argument: d2. 66Error: swap_columns: wrong column argument: d2. 67Error: swap_columns: wrong column argument: d2. 68Error: swap_columns: wrong column argument: d2. 69Error: swap_columns: wrong column argument: d2. 70Error: swap_columns: wrong column argument: d2. 71