Stacey error in Tree Annotator

[Elisa Ramos]

Dear Beast users,

After running Stacey with 196 sequences, i've got a log file and the ESS values are ok. But when trying to run the Tree Annotator i've got the following error message:

"Processing 260001 trees from file.

java.util.NoSuchElementException

at java.util.TreeMap.key(Unknown Source)

at java.util.TreeMap.lastKey(Unknown Source)

at java.util.TreeSet.last(Unknown Source)

at beast.util.NexusParser.getIndexedTranslationMapOrigin(Unknown Source)

at beast.util.NexusParser.parseTreesBlock(Unknown Source)

at beast.util.NexusParser.parseFile(Unknown Source)

at beast.util.NexusParser.parseFile(Unknown Source)

at beast.app.treeannotator.TreeAnnotator$FastTreeSet.<init>(Unknown Source)

at beast.app.treeannotator.TreeAnnotator.<init>(Unknown Source)

at beast.app.treeannotator.TreeAnnotator.main(Unknown Source)

at beast.app.treeannotator.TreeAnnotatorLauncher.main(Unknown Source)

java.io.IOException: Around line 106

null

at beast.util.NexusParser.parseFile(Unknown Source)

at beast.util.NexusParser.parseFile(Unknown Source)

at beast.app.treeannotator.TreeAnnotator$FastTreeSet.<init>(Unknown Source)

at beast.app.treeannotator.TreeAnnotator.<init>(Unknown Source)

at beast.app.treeannotator.TreeAnnotator.main(Unknown Source)

at beast.app.treeannotator.TreeAnnotatorLauncher.main(Unknown Source)

Error Parsing Input Tree: Around line 106

null

Finished - Quit program to exit."

Any suggestions how to fix it? 

Thanks, 

Elisa