解不出来

[MMRyanSheep]

Unhandled exception. System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values.
at BydTools.VFS.VFBlockMainInfo..ctor(Byte[] bytes, Int32 offset) in C:\Users\Ryan\Downloads\BydTools-940a4005a60dc17632d40ca5d101505e850b96db\BydTools.VFS\VFBlockMainInfo.cs:line 31
at BydTools.VFS.VFSDumper.DumpAssetByType(String streamingAssetsPath, EVFSBlockType dumpAssetType, String outputDir) in C:\Users\Ryan\Downloads\BydTools-940a4005a60dc17632d40ca5d101505e850b96db\BydTools.VFS\VFSDump.cs:line 171
at BydTools.CLI.Program.HandleVFSCommand(String[] args) in C:\Users\Ryan\Downloads\BydTools-940a4005a60dc17632d40ca5d101505e850b96db\BydTools.CLI\Program.cs:line 173
at BydTools.CLI.Program.Main(String[] args) in C:\Users\Ryan\Downloads\BydTools-940a4005a60dc17632d40ca5d101505e850b96db\BydTools.CLI\Program.cs:line 31