zalign: fNNNd.jar

Hi,

I am having an error of "cp: cannot stat `/disk2/soft/I-TASSER2.1//bin/zalign/fNNNd.jar': No such file or directory
Unable to access jarfile fNNNd.jar" error. When i looked into the zalign directory, i have found fNNN.jar. Are they present for the same purpose? In other words, should i just simply rename fNNN.jar or create a symlink to it?

Thanks a lot for your help and support!