I attempted to parse a file that I had accidentally overwritten with a saved parser. I got the following error:

edu.illinois.ncsa.daffodil.exceptions.Abort: Invariant broken. Unsupported conversion to Long. (null,null) of type Tuple2
edu.illinois.ncsa.daffodil.exceptions.Assert$.abort(Assert.scala:107)
edu.illinois.ncsa.daffodil.exceptions.Assert$.invariantFailed(Assert.scala:148)
edu.illinois.ncsa.daffodil.dpath.AsIntConverters$.asLong(AsIntConverters.scala:90)
edu.illinois.ncsa.daffodil.processors.SpecifiedLengthExplicitBytesParser.getLength(SpecifiedLength.scala:314)
at edu.illinois.ncsa.daffodil.exceptions.Assert$.abort(Assert.scala:107)
at edu.illinois.ncsa.daffodil.exceptions.Assert$.invariantFailed(Assert.scala:148)
at edu.illinois.ncsa.daffodil.dpath.AsIntConverters$.asLong(AsIntConverters.scala:90)
at edu.illinois.ncsa.daffodil.processors.SpecifiedLengthExplicitBytesParser.getLength(SpecifiedLength.scala:314)
at edu.illinois.ncsa.daffodil.processors.SpecifiedLengthExplicitBytesParser$$anonfun$parse$8.apply(SpecifiedLength.scala:322)
at edu.illinois.ncsa.daffodil.processors.SpecifiedLengthExplicitBytesParser$$anonfun$parse$8.apply(SpecifiedLength.scala:319)
at edu.illinois.ncsa.daffodil.processors.WithParseErrorThrowing$class.withParseErrorThrowing(ParseErrors.scala:217)
at edu.illinois.ncsa.daffodil.processors.SpecifiedLengthParserBase.withParseErrorThrowing(SpecifiedLength.scala:166)
at edu.illinois.ncsa.daffodil.processors.SpecifiedLengthExplicitBytesParser.parse(SpecifiedLength.scala:319)
at edu.illinois.ncsa.daffodil.processors.Parser.parse1(Parser.scala:90)
at edu.illinois.ncsa.daffodil.processors.StatementElementParserBase$$anonfun$9.apply(ElementCombinator1.scala:131)
at edu.illinois.ncsa.daffodil.processors.StatementElementParserBase$$anonfun$9.apply(ElementCombinator1.scala:130)
at scala.Option.map(Option.scala:145)
at edu.illinois.ncsa.daffodil.processors.StatementElementParserBase.parse(ElementCombinator1.scala:130)
at edu.illinois.ncsa.daffodil.processors.Parser.parse1(Parser.scala:90)
at edu.illinois.ncsa.daffodil.processors.parsers.Rep$.loopExactlyTotalN(RepParsers.scala:104)
at edu.illinois.ncsa.daffodil.processors.parsers.RepExactlyTotalOccursCountParser.parseAllRepeats(RepParsers.scala:311)
at edu.illinois.ncsa.daffodil.processors.parsers.RepParser.parse(RepParsers.scala:76)
at edu.illinois.ncsa.daffodil.processors.Parser.parse1(Parser.scala:90)
at edu.illinois.ncsa.daffodil.processors.SeqCompParser$$anonfun$parse$2.apply(Parser.scala:171)
at edu.illinois.ncsa.daffodil.processors.SeqCompParser$$anonfun$parse$2.apply(Parser.scala:169)
at scala.collection.immutable.List.foreach(List.scala:318)
at edu.illinois.ncsa.daffodil.processors.SeqCompParser.parse(Parser.scala:169)
at edu.illinois.ncsa.daffodil.processors.Parser.parse1(Parser.scala:90)
at edu.illinois.ncsa.daffodil.processors.parsers.ArrayCombinatorParser.parse(ElementKindParsers.scala:85)
at edu.illinois.ncsa.daffodil.processors.Parser.parse1(Parser.scala:90)
at edu.illinois.ncsa.daffodil.processors.SeqCompParser$$anonfun$parse$2.apply(Parser.scala:171)
at edu.illinois.ncsa.daffodil.processors.SeqCompParser$$anonfun$parse$2.apply(Parser.scala:169)
at scala.collection.immutable.List.foreach(List.scala:318)
at edu.illinois.ncsa.daffodil.processors.SeqCompParser.parse(Parser.scala:169)
at edu.illinois.ncsa.daffodil.processors.Parser.parse1(Parser.scala:90)
at edu.illinois.ncsa.daffodil.processors.parsers.SequenceCombinatorParser.parse(ElementKindParsers.scala:69)
at edu.illinois.ncsa.daffodil.processors.Parser.parse1(Parser.scala:90)
at edu.illinois.ncsa.daffodil.processors.parsers.ComplexTypeParser.parse(ElementKindParsers.scala:55)
at edu.illinois.ncsa.daffodil.processors.Parser.parse1(Parser.scala:90)
at edu.illinois.ncsa.daffodil.processors.StatementElementParserBase$$anonfun$9.apply(ElementCombinator1.scala:131)
at edu.illinois.ncsa.daffodil.processors.StatementElementParserBase$$anonfun$9.apply(ElementCombinator1.scala:130)
at scala.Option.map(Option.scala:145)
at edu.illinois.ncsa.daffodil.processors.StatementElementParserBase.parse(ElementCombinator1.scala:130)
at edu.illinois.ncsa.daffodil.processors.Parser.parse1(Parser.scala:90)
at edu.illinois.ncsa.daffodil.processors.DataProcessor$$anonfun$parse$3$$anon$1.liftedTree1$1(Runtime.scala:212)
at edu.illinois.ncsa.daffodil.processors.DataProcessor$$anonfun$parse$3$$anon$1.<init>(Runtime.scala:211)
at edu.illinois.ncsa.daffodil.processors.DataProcessor$$anonfun$parse$3.apply(Runtime.scala:208)
at edu.illinois.ncsa.daffodil.processors.DataProcessor$$anonfun$parse$3.apply(Runtime.scala:207)
at scala.util.DynamicVariable.withValue(DynamicVariable.scala:57)
at edu.illinois.ncsa.daffodil.ExecutionMode$$anonfun$usingRuntimeMode$1.apply(ExecutionMode.scala:80)
at edu.illinois.ncsa.daffodil.ExecutionMode$$anonfun$usingRuntimeMode$1.apply(ExecutionMode.scala:80)
at edu.illinois.ncsa.daffodil.processors.DataProcessor.parse(Runtime.scala:207)
at edu.illinois.ncsa.daffodil.processors.DataProcessor.parse(Runtime.scala:171)
at edu.illinois.ncsa.daffodil.Main$$anonfun$71.apply(Main.scala:685)
at edu.illinois.ncsa.daffodil.Main$$anonfun$71.apply(Main.scala:683)
at edu.illinois.ncsa.daffodil.util.Timer$.getTimeResult(Timer.scala:91)
at edu.illinois.ncsa.daffodil.util.Timer$.getResult(Timer.scala:50)
at edu.illinois.ncsa.daffodil.Main$.run(Main.scala:682)
at edu.illinois.ncsa.daffodil.Main$.main(Main.scala:1067)
at edu.illinois.ncsa.daffodil.Main.main(Main.scala)