Parquet File Reader: NioFileSystemUtil error

When I try to read a local Parquet file - on Mac (using Knime 4.2 or 4.4 - both same issue)

I get the following error:
ERROR NodeSetFactoryExtension NodeSetFactory ‘org.knime.bigdata.spark.core.node.SparkNodeSetFactory’ from plugin ‘org.knime.bigdata.spark.core’ could not be created. The corresponding plugin bundle could not be activated!
ERROR RepositoryManager Node ‘org.knime.bigdata.dbfs.node.connector.DBFSConnectionInformationNodeFactory’ from plugin ‘org.knime.bigdata.databricks’ could not be created. The corresponding plugin bundle could not be activated!
ERROR RepositoryManager Node ‘org.knime.bigdata.dbfs.filehandling.node.DbfsConnectorNodeFactory’ from plugin ‘org.knime.bigdata.databricks’ could not be created. The corresponding plugin bundle could not be activated!
ERROR RepositoryManager Node ‘org.knime.bigdata.hdfs.node.connector.HDFSConnectionInformationNodeFactory’ from plugin ‘org.knime.bigdata.filehandling’ could not be created. The corresponding plugin bundle could not be activated!
ERROR RepositoryManager Node ‘org.knime.bigdata.hdfs.node.filesettings.SetFilePermissionNodeFactory’ from plugin ‘org.knime.bigdata.filehandling’ could not be created. The corresponding plugin bundle could not be activated!
ERROR RepositoryManager Node ‘org.knime.bigdata.hdfs.node.connector.HttpFSConnectionInformationNodeFactory’ from plugin ‘org.knime.bigdata.filehandling’ could not be created. The corresponding plugin bundle could not be activated!
ERROR RepositoryManager Node ‘org.knime.bigdata.hdfs.node.connector.HttpsFSConnectionInformationNodeFactory’ from plugin ‘org.knime.bigdata.filehandling’ could not be created. The corresponding plugin bundle could not be activated!
ERROR RepositoryManager Node ‘org.knime.bigdata.hdfs.node.connector.WebHDFSConnectionInformationNodeFactory’ from plugin ‘org.knime.bigdata.filehandling’ could not be created. The corresponding plugin bundle could not be activated!
ERROR RepositoryManager Node ‘org.knime.bigdata.hdfs.node.connector.SWebHDFSConnectionInformationNodeFactory’ from plugin ‘org.knime.bigdata.filehandling’ could not be created. The corresponding plugin bundle could not be activated!
ERROR RepositoryManager Node ‘org.knime.bigdata.hadoop.filehandling.node.HdfsConnectorNodeFactory’ from plugin ‘org.knime.bigdata.hadoop.filehandling’ could not be created. The corresponding plugin bundle could not be activated!
ERROR RepositoryManager Node ‘org.knime.bigdata.hive.node.connector.HiveConnectorNodeFactory’ from plugin ‘org.knime.bigdata.hive’ could not be created. The corresponding plugin bundle could not be activated!
ERROR RepositoryManager Node ‘org.knime.ext.h2o.mojo.spark.node.scorer.autoencoding.SparkH2OMojoAutoEncoderPredictorNodeFactory’ from plugin ‘org.knime.ext.h2o.mojo.spark.node’ could not be created.
ERROR RepositoryManager Node ‘org.knime.ext.h2o.mojo.spark.node.scorer.clustering.SparkH2OMojoClusterAssignerNodeFactory’ from plugin ‘org.knime.ext.h2o.mojo.spark.node’ could not be created.
ERROR RepositoryManager Node ‘org.knime.ext.h2o.mojo.spark.node.scorer.dimreduction.SparkH2OMojoDimReductionPredictorNodeFactory’ from plugin ‘org.knime.ext.h2o.mojo.spark.node’ could not be created.
ERROR RepositoryManager Node ‘org.knime.ext.h2o.mojo.spark.node.scorer.regression.SparkH2OMojoRegressionPredictorNodeFactory’ from plugin ‘org.knime.ext.h2o.mojo.spark.node’ could not be created.
ERROR RepositoryManager Node ‘org.knime.ext.h2o.mojo.spark.node.scorer.wordembedding.SparkH2OMojoWordEmbeddingPredictorNodeFactory’ from plugin ‘org.knime.ext.h2o.mojo.spark.node’ could not be created.
ERROR RepositoryManager Node ‘org.knime.ext.h2o.mojo.spark.node.scorer.classification.SparkH2OMojoClassificationPredictor2NodeFactory’ from plugin ‘org.knime.ext.h2o.mojo.spark.node’ could not be created.
ERROR RepositoryManager Node ‘org.knime.ext.h2o.mojo.spark.node.scorer.anomalydetection.SparkH2OMojoAnomalyDetectorNodeFactory’ from plugin ‘org.knime.ext.h2o.mojo.spark.node’ could not be created.
ERROR RepositoryManager Node ‘org.knime.ext.h2o.spark.node.context.create.H2OSparkCreateContextNodeFactory’ from plugin ‘org.knime.ext.h2o.spark.node’ could not be created.
ERROR RepositoryManager Node ‘org.knime.ext.h2o.spark.node.frametordd.H2OSparkFrameToRDDNodeFactory’ from plugin ‘org.knime.ext.h2o.spark.node’ could not be created.
ERROR RepositoryManager Node ‘org.knime.ext.h2o.spark.node.rddtoframe.H2OSparkRDDToFrameNodeFactory2’ from plugin ‘org.knime.ext.h2o.spark.node’ could not be created.
ERROR WorkflowMigrationManager An error occurred during migration rule matching.
ERROR WorkflowMigrationManager An error occurred during migration rule matching.
ERROR WorkflowMigrationManager An error occurred during migration rule matching.
ERROR Parquet Reader 5:1 Problems during initialization of extension with id ‘org.knime.bigdata.dbfs.filehandling.fs.DbfsFSDescriptorProvider’.
ERROR Parquet Reader 5:1 Extension null ignored.
ERROR Parquet Reader 5:1 Problems during initialization of extension with id ‘org.knime.bigdata.hadoop.filehandling.fs.HdfsFSDescriptorProvider’.
ERROR Parquet Reader 5:1 Extension null ignored.
ERROR Parquet Reader 5:1 Problems during initialization of extension with id ‘org.knime.bigdata.hadoop.filesystem.testing.LocalHdfsFSDescriptorProvider’.
ERROR Parquet Reader 5:1 Extension null ignored.
ERROR Parquet Reader 5:1 Execute failed: org/knime/bigdata/hadoop/filesystem/NioFileSystemUtil

Also - in the File Reader dialog I see the red error icon, then "org/knime/bigdata/hadoop/filesystem/NioFileSystemUtil

Any idea how to fix that?

Hi @maierhofer.l,

can you try to update KNIME using File > update KNIME. If this does not help, can you try to add the -clean option to your knime.ini or test if a fresh KNIME installation works?

Cheers
Sascha

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