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java.lang.NullPointerException: 	at org.broad.igv.DirectoryManager.getIgvDirectory(DirectoryManager.java:121)	at org.broad.igv.DirectoryManager.getPreferencesFile(DirectoryManager.java:250)	at org.broad.igv.IGVPreferences.loadUserPreferences(IGVPreferences.java:113)	at org.broad.igv.IGVPreferences.get(IGVPreferences.java:93)	at org.broad.igv.IGVPreferences.get(IGVPreferences.java:86)	at org.broad.igv.PreferenceManager.get(PreferenceManager.java:285)	at org.broad.igv.PreferenceManager.get(PreferenceManager.java:289)	at org.broad.igv.gs.GSUtils.getDMHost(GSUtils.java:201)	at org.broad.igv.gs.GSUtils.isGenomeSpace(GSUtils.java:194)	at org.broad.igv.util.HttpUtils.openConnection(HttpUtils.java:649)	at org.broad.igv.util.HttpUtils.openConnection(HttpUtils.java:591)	at org.broad.igv.util.HttpUtils.openConnectionHeadOrGet(HttpUtils.java:243)	at org.broad.igv.util.HttpUtils.getHeaderField(HttpUtils.java:258)	at org.broad.igv.util.HttpUtils.getContentLength(HttpUtils.java:272)	at org.broad.igv.util.HttpUtils.useByteRange(HttpUtils.java:775)	at org.broad.igv.util.stream.IGVSeekableStreamFactory.getStreamFor(IGVSeekableStreamFactory.java:52)	at juicebox.data.DatasetReaderV2.(DatasetReaderV2.java:77)	at juicebox.data.HiCFileTools.extractDatasetForCLT(HiCFileTools.java:63)	at juicebox.tools.clt.old.Dump.readArguments(Dump.java:395)	at juicebox.tools.HiCTools.main(HiCTools.java:77)