UserWarning: loadtxt: Empty input file: "./cache/c044_PA_res.txt" matches = np.loadtxt(f'./cache/{seq}_PA_res.txt', dtype=int, delimiter=' ') in this stage of PA, get matched tracklets 0 generating input graph for solving min cost perfect matching problem. '.' 不是内部或外部命令，也不是可运行的程序 或批处理文件。

[xifen523]

D:\workspace\python\MTMC\AIC21-MTMC-main\tracker\MOTBaseline\src\post_processing\post_association.py:85: UserWarning: loadtxt: Empty input file: "./cache/c044_PA_res.txt"
matches = np.loadtxt(f'./cache/{seq}_PA_res.txt', dtype=int, delimiter=' ')
in this stage of PA, get matched tracklets 0
generating input graph for solving min cost perfect matching problem.
'.' 不是内部或外部命令，也不是可运行的程序
或批处理文件。

这一段有这个报错 怎么处理一下呀

[LCFractal]

后处理的程序运行于linux系统，考虑使用ubuntu或centos