Could not retrieve index file

[sanderslhc]

Hi，
When I'm running "velocyto run -b /${path}/outs/filtered_feature_bc_matrix/barcodes.tsv.gz -o /${path}/outs -m cattle_rmsk.gtf /${path}/outs/possorted_genome_bam.bam genes.gtf"
There is something wrong happened like "Could not retrieve index file for '/usr/home/ironbank/researchdata/gtex/cattle_scdata/count/LJ/LJ1/outs/cellsorted_possorted_genome_bam.bam'". What should I do to solve this problem.
Thank you