ERROR: An attempt was made to load two reference sequences with the same exact names (1)

[osowiecki]

dotnet /media/2/CORN/CreateGenomeSizeFile_5.2.10.49/CreateGenomeSizeFile.dll -g /media/2/CORN/data/zea_mays /Sequence/WholeGenomeFasta/ -s 'Zea mays (B73_RefGen_v4)' -o /media/2/CORN/data/Canvas/O/

CreateGenomeSizeFile Copyright (c) Illumina 2019 https://github.com/Illumina/Pisces 5.2.10.49

12/25/19 4:54 PM 1 ************* Starting ************** 12/25/19 4:54 PM 1 Version: 5.2.10.49.
12/25/19 4:54 PM 1 Command-line arguments: . 12/25/19 4:54 PM 1 "-g /media/2/CORN/data/zea_mays/Sequence/WholeGenomeFasta/ -s Zea mays (B73_RefGen_v4) -o /media/2/CORN/data/Canvas/O/".

Multiple FASTA files -> require import! Preparing GenomeSize.xml for folder /media/2/CORN/data/Canvas/O/... 12/25/19 4:55 PM 1 Exception reported:
System.ArgumentException: An attempt was made to load two reference sequences with the same exact names (1) at Common.IO.Sequencing.GenomeMetadata.AddReferenceSequence(String name, Int64 length, String fastaPath, FastaHeaderMetadata header, HashSet1& re ferenceNames, Int64 knownBaseLength) at Common.IO.Sequencing.GenomeMetadata.ImportFromFastaFiles(String inputFastaDirectory, String outputDirectory) at CreateGenomeSizeFile.Program.ProgramExecution() at CommandLine.Application.BaseApplication1.Execute().

ERROR: An attempt was made to load two reference sequences with the same exact names (1)

Stack trace: at Common.IO.Sequencing.GenomeMetadata.AddReferenceSequence(String name, Int64 length, String fastaPath, FastaHeaderMetadata header, HashSet1& re ferenceNames, Int64 knownBaseLength) at Common.IO.Sequencing.GenomeMetadata.ImportFromFastaFiles(String inputFastaDirectory, String outputDirectory) at CreateGenomeSizeFile.Program.ProgramExecution() at CommandLine.Application.BaseApplication1.Execute() 12/25/19 4:55 PM 1 ******************** Ending *********************

What triggers this error? Removed spaces in chromosome names and it moved forward. Is this it?