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This article explains the meanings of error messages that you may receive while using AppleScript.

The following information was provided by Apple Inc. to developers in the AppleScript Language Guide.

AppleScript Errors

Error Number	Error Message
-2700	Unknown error
-2701	Can't divide "number" by zero
-2702	The result of a numeric operation was too large
-2703	"reference" can't be launched because it is not an application
-2704	"reference" isn't scriptable
-2705	The application has a corrupted dictionary
-2706	Stack overflow
-2707	Internal table overflow
-2708	Attempt to create a value larger than the allowable size
-2709	Can't get the event dictionary
-2720	Can't both consider and ignore "attribute"
-2721	Can't perform operation on text longer than 32K bytes
-2729	Message size too large for the 7.0 Finder
-2740	A "language element" can't go after this "language element"
-2741	Expected "language element" but found "language element"
-2750	The "name" parameter is specified more than once
-2751	The "name" property is specified more than once
-2752	The "name" handler is specified more than once
-2753	The variable "name" is not defined
-2754	Can't declare "name" as both a local and global variable
-2755	Exit statement was not in a repeat loop
-2760	Tell statements are nested too deeply
-2761	"name" is illegal as a formal parameter
-2762	"name" is not a parameter name for the event "event"
-2763	No result was returned for some argument of this expression