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    Check if the field you try to read really exists in the database. If it is optional, just use com.mongodb.casbah.commons.MongoDBObject#getAs

Solutions on the web

via Stack Overflow by kaushal
, 2 years ago
key not found: frozen<tuple<int, text, text, text, list<text>>>
via GitHub by BLepers
, 1 year ago
key not found: @library @isabelle.typ def get$4[T$423](thiss$108 : Option$0[T$423]): T$423 = { require(thiss$108.isDefined$1) val Some$0(x$244) = thiss$108 x$244 }
via GitHub by thammuio
, 2 months ago
key not found: PLAINTEXT
via GitHub by olhotak
, 1 year ago
key not found: Enum(Map(Top -> Tag(/SU::SULattice,Top,Unit), Single -> Tag(/SU::SULattice,Single,Str), Bottom -> Tag(/SU::SULattice,Bottom,Unit)))
via GitHub by OlivierBlanvillain
, 10 months ago
key not found: identity
java.util.NoSuchElementException: key not found: frozen<tuple<int, text, text, text, list<text>>>	at scala.collection.MapLike$class.default(MapLike.scala:228)	at scala.collection.AbstractMap.default(Map.scala:58)	at scala.collection.MapLike$class.apply(MapLike.scala:141)	at scala.collection.AbstractMap.apply(Map.scala:58)	at com.datastax.spark.connector.types.ColumnType$.fromDriverType(ColumnType.scala:73)	at com.datastax.spark.connector.types.ColumnType$$anonfun$1.apply(ColumnType.scala:67)	at com.datastax.spark.connector.types.ColumnType$$anonfun$1.apply(ColumnType.scala:67)	at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)	at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)	at scala.collection.Iterator$class.foreach(Iterator.scala:727)	at scala.collection.AbstractIterator.foreach(Iterator.scala:1157)	at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)	at scala.collection.AbstractIterable.foreach(Iterable.scala:54)	at scala.collection.TraversableLike$class.map(TraversableLike.scala:244)	at scala.collection.AbstractTraversable.map(Traversable.scala:105)	at com.datastax.spark.connector.types.ColumnType$.fromDriverType(ColumnType.scala:67)	at com.datastax.spark.connector.cql.ColumnDef$.apply(Schema.scala:110)	at com.datastax.spark.connector.cql.Schema$$anonfun$com$datastax$spark$connector$cql$Schema$$fetchRegularColumns$1.apply(Schema.scala:210)	at com.datastax.spark.connector.cql.Schema$$anonfun$com$datastax$spark$connector$cql$Schema$$fetchRegularColumns$1.apply(Schema.scala:206)	at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)	at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)	at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)	at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:47)	at scala.collection.TraversableLike$class.map(TraversableLike.scala:244)	at scala.collection.AbstractTraversable.map(Traversable.scala:105)	at com.datastax.spark.connector.cql.Schema$.com$datastax$spark$connector$cql$Schema$$fetchRegularColumns(Schema.scala:206)	at com.datastax.spark.connector.cql.Schema$$anonfun$com$datastax$spark$connector$cql$Schema$$fetchTables$1$2.apply(Schema.scala:235)	at com.datastax.spark.connector.cql.Schema$$anonfun$com$datastax$spark$connector$cql$Schema$$fetchTables$1$2.apply(Schema.scala:232)	at scala.collection.TraversableLike$WithFilter$$anonfun$map$2.apply(TraversableLike.scala:722)	at scala.collection.immutable.Set$Set2.foreach(Set.scala:94)	at scala.collection.TraversableLike$WithFilter.map(TraversableLike.scala:721)	at com.datastax.spark.connector.cql.Schema$.com$datastax$spark$connector$cql$Schema$$fetchTables$1(Schema.scala:232)	at com.datastax.spark.connector.cql.Schema$$anonfun$com$datastax$spark$connector$cql$Schema$$fetchKeyspaces$1$2.apply(Schema.scala:241)	at com.datastax.spark.connector.cql.Schema$$anonfun$com$datastax$spark$connector$cql$Schema$$fetchKeyspaces$1$2.apply(Schema.scala:240)	at scala.collection.TraversableLike$WithFilter$$anonfun$map$2.apply(TraversableLike.scala:722)	at scala.collection.immutable.HashSet$HashSet1.foreach(HashSet.scala:153)	at scala.collection.immutable.HashSet$HashTrieSet.foreach(HashSet.scala:306)	at scala.collection.immutable.HashSet$HashTrieSet.foreach(HashSet.scala:306)	at scala.collection.TraversableLike$WithFilter.map(TraversableLike.scala:721)	at com.datastax.spark.connector.cql.Schema$.com$datastax$spark$connector$cql$Schema$$fetchKeyspaces$1(Schema.scala:240)	at com.datastax.spark.connector.cql.Schema$$anonfun$fromCassandra$1.apply(Schema.scala:246)	at com.datastax.spark.connector.cql.Schema$$anonfun$fromCassandra$1.apply(Schema.scala:243)	at com.datastax.spark.connector.cql.CassandraConnector$$anonfun$withClusterDo$1.apply(CassandraConnector.scala:116)	at com.datastax.spark.connector.cql.CassandraConnector$$anonfun$withClusterDo$1.apply(CassandraConnector.scala:115)	at com.datastax.spark.connector.cql.CassandraConnector$$anonfun$withSessionDo$1.apply(CassandraConnector.scala:105)	at com.datastax.spark.connector.cql.CassandraConnector$$anonfun$withSessionDo$1.apply(CassandraConnector.scala:104)	at com.datastax.spark.connector.cql.CassandraConnector.closeResourceAfterUse(CassandraConnector.scala:156)	at com.datastax.spark.connector.cql.CassandraConnector.withSessionDo(CassandraConnector.scala:104)	at com.datastax.spark.connector.cql.CassandraConnector.withClusterDo(CassandraConnector.scala:115)	at com.datastax.spark.connector.cql.Schema$.fromCassandra(Schema.scala:243)	at org.apache.spark.sql.cassandra.CassandraSourceRelation.(CassandraSourceRelation.scala:39)	at org.apache.spark.sql.cassandra.CassandraSourceRelation$.apply(CassandraSourceRelation.scala:168)	at org.apache.spark.sql.cassandra.DefaultSource.createRelation(DefaultSource.scala:84)	at org.apache.spark.sql.sources.ResolvedDataSource$.apply(ddl.scala:305)	at org.apache.spark.sql.DataFrameWriter.save(DataFrameWriter.scala:144)