[Samtools-announce] Error

[John K. <srf...@gm...>]

Hi, I'm getting this error and unsure what its source comes from and why
it's reporting it the way it does:

 INFO    2011-03-08 15:00:41     MarkDuplicates  Will retain up to 2774097
data points before spilling to disk.
[Tue Mar 08 15:00:41 CST 2011] net.sf.picard.sam.MarkDuplicates done.
Runtime.totalMemory()=53542912
Exception in thread "main" java.lang.RuntimeException: SAM validation error:
ERROR: Record 2, Read name 1782_1482_1219, RG ID on SAMRecord not found in
header: 20110227233033839
        at
net.sf.samtools.SAMUtils.processValidationErrors(SAMUtils.java:334)
        at
net.sf.samtools.BAMFileReader$BAMFileIterator.advance(BAMFileReader.java:449)
        at
net.sf.samtools.BAMFileReader$BAMFileIterator.next(BAMFileReader.java:430)
        at
net.sf.samtools.BAMFileReader$BAMFileIterator.next(BAMFileReader.java:397)
        at
net.sf.samtools.SAMFileReader$AssertableIterator.next(SAMFileReader.java:604)
        at
net.sf.samtools.SAMFileReader$AssertableIterator.next(SAMFileReader.java:582)


Not sure what I did wrong?