FileNotFoundError: [Errno 2] No such file or directory: 'paired.a3m'

[LMJOK]

(RoseTTAFold) root@22506ec99bb5:/data/lmj/RoseTTAFold/RoseTTAFold-main/RoseTTAFold-main# python /data/lmj/RoseTTAFold/RoseTTAFold-main/RoseTTAFold-main/network/predict_complex.py -i paired.a3m -o complex -Ls 218 310
Using backend: pytorch
Traceback (most recent call last):
File "/data/lmj/RoseTTAFold/RoseTTAFold-main/RoseTTAFold-main/network/predict_complex.py", line 317, in
pred.predict(args.a3m_fn, args.out_prefix, args.Ls, templ_npz=args.templ_npz)
File "/data/lmj/RoseTTAFold/RoseTTAFold-main/RoseTTAFold-main/network/predict_complex.py", line 119, in predict
msa = parse_a3m(a3m_fn)
File "/data/lmj/RoseTTAFold/RoseTTAFold-main/RoseTTAFold-main/network/parsers.py", line 26, in parse_a3m
for line in open(filename,"r"):
FileNotFoundError: [Errno 2] No such file or directory: 'paired.a3m'