Hello, I have a problem with one of the functions in Bio3d package in R programming language. The problem is that to have the analysis with "pdb2aln.ind" function, I should have a sequence file and tell the program to read it, but as I use the function "Read.Fasta" and give the FASTA file name to the program I face this error about the problem of my file. The file type is ".fasta" and I took it from PDB Database. Also I had another try and took the file from NCBI and nothing has changed.
I had tried to do some changes in the information mentioned in the file, but it didn't work. I am very appreciated if you help me with this.