I tried parsing a script I am working on, but get the following error: NullReferenceException: Object reference not set to an instance of an object Addon_CSP.ClassStructInitializerExpression..ctor (Addon_CSP.ExpressionNode leftSide, Addon_CSP.Collections.ExpressionList expressions) Addon_CSP.Parser.ParseSubexpression (Int32 precBound, Addon_CSP.ExpressionNode left) Addon_CSP.Parser.ParseSubexpression (Int32 precBound) Addon_CSP.Parser.ParseExpression () Addon_CSP.Parser.ParseStatement () Addon_CSP.Parser.ParseBlock (Addon_CSP.BlockStatement node, Boolean isCase) Addon_CSP.Parser.ParseBlock (Addon_CSP.BlockStatement node) Addon_CSP.Parser.ParseMethod (IType type, Addon_CSP.QualifiedIdentifierExpression name) Addon_CSP.Parser.ParseClassMember () Addon_CSP.Parser.ParseClass () Addon_CSP.Parser.ParseNamespaceOrTypes () Addon_CSP.Parser.ParseNamespace () Addon_CSP.Parser.ParseNamespaceOrTypes () Addon_CSP.Parser.Parse (Addon_CSP.Collections.TokenCollection tokens, System.Collections.Generic.List`1 strings) [See follow up posts with screenshots. Apparently, default parameters, overloaded methods etc. breaks the parsing.] Also, it can not be used on a Mac (Mac has only one mouse button, uses Ctrl-Click as secondary click, Cmd-C for for copy, panning for panning and not zoom, Cmd-Delete for deleting when not using Delete etc., but I would expect a $270 to have that degree of polish), so I am afraid I'll have to remove Nottoris from my project for now, and wait until it has matured further. I tested Nottorus a bit more. One script can't be compiled anymore. An error mark is shown on the compile icon, but the Nottorus console is empty, and no error is reported in the Unity console either. Also, when clicking on the script icon in Nottorus, Unity will crash.