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Issues with ClipReads function

I am trying to end clip reads. Here is my command followed by the message I receive.
$ java -jar -Xmx2g GenomeAnalysisTK.jar -T ClipReads -I ~/WOR/5_28/*.bam -o 5_28Clipped.bam -R ~/REFERENCE/mm10.fa --cyclesToTrim "1-5,11-15" --clipRepresentation SOFTCLIP_BASES --allow_potentially_misencoded_quality_scores

Error message:

ERROR ------------------------------------------------------------------------------------------
ERROR A USER ERROR has occurred (version 3.3-0-g37228af):
ERROR This means that one or more arguments or inputs in your command are incorrect.
ERROR The error message below tells you what is the problem.
ERROR If the problem is an invalid argument, please check the online documentation guide
ERROR (or rerun your command with --help) to view allowable command-line arguments for this tool.
ERROR Visit our website and forum for extensive documentation and answers to
ERROR commonly asked questions http://www.broadinstitute.org/gatk
ERROR Please do NOT post this error to the GATK forum unless you have really tried to fix it yourself.
ERROR MESSAGE: Invalid command line: Malformed walker argument: Could not find walker with name: ClipReads
ERROR ------------------------------------------------------------------------------------------

Any help/advice will be much appreciated. I am new to bioinformatics analysis.
Thank you!


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