Got an error message that I don't understand.

allensm

• Exception: com.rapidminer.storage.hdf5.HdfReaderException
• Message: name attribute must have String value
• Stack trace:
• com.rapidminer.storage.hdf5.Hdf5TableReader.getName(Hdf5TableReader.java:547)
• com.rapidminer.storage.hdf5.Hdf5TableReader.readColumns(Hdf5TableReader.java:265)
• com.rapidminer.storage.hdf5.Hdf5TableReader.readMetaData(Hdf5TableReader.java:231)
• com.rapidminer.storage.hdf5.Hdf5TableReader.readMetaData(Hdf5TableReader.java:196)
• com.rapidminer.repository.versioned.datasummary.IOTableDataSummarySerializer.deserialize(IOTableDataSummarySerializer.java:67)
• com.rapidminer.repository.versioned.datasummary.IOTableDataSummarySerializer.deserialize(IOTableDataSummarySerializer.java:42)
• com.rapidminer.repository.PersistentContentMapperStore.retrieve(PersistentContentMapperStore.java:439)
• com.rapidminer.repository.versioned.datasummary.ContentMapperStorage.load(ContentMapperStorage.java:121)
• com.rapidminer.versioning.repository.FileSystemRepository.getDataSummary(FileSystemRepository.java:522)
• com.rapidminer.repository.versioned.BasicEntry.retrieveDataSummary(BasicEntry.java:89)
• com.rapidminer.repository.versioned.AbstractIOObjectEntry.retrieveMetaData(AbstractIOObjectEntry.java:78)
• com.rapidminer.operator.io.RepositorySource$1.run(RepositorySource.java:133)
• com.rapidminer.gui.tools.ProgressThread$3.run(ProgressThread.java:586)
• java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
• java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
• java.lang.Thread.run(Thread.java:748)

MartinLiebig

Hi,

looks like you have an attribute name which is not combatible. Could it be that you have something like an empty name, just a tab or non-ascii letters in your attribute names?

BR,

Martin