Hi,

I gave the following command:

lean data generate --start=20100101 --symbol-count=1

and got the error that follows:

   Symbol[1]: KYQ 2T Progress: 100.0% - Symbol data generation and output completed
Random data generation has completed.
Launching coarse data generator...
20210702 18:03:06.133 TRACE:: Config.Get(): Configuration key not found. Key: reserved-words-prefix - Using default
value: quantconnect-
20210702 18:03:06.202 TRACE:: CoarseUniverseGeneratorProgram.ProcessDailyFolder(): Processing:
/Lean/Data/equity/usa/daily
Unhandled exception. System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values.
(Parameter 'MaxDegreeOfParallelism')
   at System.Threading.Tasks.ParallelOptions.set_MaxDegreeOfParallelism(Int32 value)
   at QuantConnect.ToolBox.CoarseUniverseGenerator.CoarseUniverseGeneratorProgram.Run() in /LeanCloud/CI.Builder/bin/De
bug/src/QuantConnect/Lean/ToolBox/CoarseUniverseGenerator/CoarseUniverseGeneratorProgram.cs:line 134
   at QuantConnect.ToolBox.CoarseUniverseGenerator.CoarseUniverseGeneratorProgram.CoarseUniverseGenerator() in /LeanClo
ud/CI.Builder/bin/Debug/src/QuantConnect/Lean/ToolBox/CoarseUniverseGenerator/CoarseUniverseGeneratorProgram.cs:line 65
   at QuantConnect.ToolBox.RandomDataGenerator.RandomDataGeneratorProgram.RandomDataGenerator(String startDateString,
String endDateString, String symbolCountString, String market, String securityTypeString, String resolutionString,
String dataDensityString, String includeCoarseString, String quoteTradeRatioString, String randomSeed, String
hasIpoPercentageString, String hasRenamePercentageString, String hasSplitsPercentageString, String
hasDividendsPercentageString, String dividendEveryQuarterPercentageString) in
/LeanCloud/CI.Builder/bin/Debug/src/QuantConnect/Lean/ToolBox/RandomDataGenerator/RandomDataGeneratorProgram.cs:line 66
   at QuantConnect.ToolBox.Program.Main(String[] args) in
/LeanCloud/CI.Builder/bin/Debug/src/QuantConnect/Lean/ToolBox/Program.cs:line 266
Error: Something went wrong while running the random data generator, see the logs above for more information
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The data seems to be correctly generated, but I wonder what is the meaning of this error.

Any idea?

Thanks!