Trappable Errors in Visual Basic

While the structured exception handling model provided in Visual Basic is more useful in developing applications, you might choose to employ unstructured error handling, particularly when upgrading legacy applications. You can use the On Error Statement (Visual Basic) to trap and respond to specific errors.

Trappable Errors

Trappable errors can occur while an application is running. Some trappable errors can also occur during development or compile time. You can test and respond to trappable errors using the On Error statement and the Err Object (Visual Basic).

The following table lists error codes and their associated messages.

Code	Message
0	No error
3	Return without GoSub (obsolete, no longer used)
5	Procedure call or argument is not valid (Visual Basic)
6	Overflow (Visual Basic Error) Overflow (Visual Basic Run-Time Error)
7	Out of memory (Visual Basic Compiler Error) Out of memory (Visual Basic Run-Time Error)
9	Subscript out of range (Visual Basic)
10	This array is fixed or temporarily locked (Visual Basic)
11	Division by zero (Visual Basic Run-Time Error)
13	Type mismatch (Visual Basic)
14	Out of string space (Visual Basic)
16	Expression too complex
17	Can't perform requested operation (Visual Basic)
18	User interrupt occurred
20	Resume without error
28	Out of stack space (Visual Basic)
35	Sub or Function not defined (Visual Basic)
47	Too many DLL application clients
48	Error in loading DLL (Visual Basic)
49	Bad DLL calling convention
51	Internal error (Visual Basic)
52	Bad file name or number
53	File not found (Visual Basic Run-Time Error)
54	Bad file mode
55	File already open
57	Device I/O error
58	File already exists
59	Bad record length
61	Disk full (Visual Basic)
62	Input past end of file
63	Bad record number
67	Too many files
68	Device unavailable
70	Permission denied (Visual Basic)
71	Disk not ready
74	Cannot rename with different drive
75	Path/File access error
76	Path not found
91	Object variable or With block variable not set
92	For loop not initialized (Visual Basic)
93	Invalid pattern string
94	Invalid use of Null (obsolete, no longer used)
95	Application-defined or object-defined error
96	Unable to sink events of object because the object is already firing events to the maximum number of event receivers it supports
97	Cannot call friend function on object which is not an instance of defining class
98	A property or method call cannot include a reference to a private object, either as an argument or as a return value
100	Class '<classname>' does not implement the System.Collections.ICollection interface
298	System resource or DLL could not be loaded
320	Cannot use character device names in specified file names
321	File format not valid
322	Can't create necessary temporary file
325	Format not valid in resource file
327	Data value named not found
328	Illegal parameter; can't write arrays
335	Could not access system registry
336	ActiveX component not correctly registered
337	ActiveX Component not found
338	ActiveX Component did not run correctly
360	Object already loaded
361	Can't load or unload this object
363	ActiveX Control specified not found
364	Object was unloaded
365	Unable to unload within this context
368	The specified file is out of date
371	The specified object can't be used as an owner form for Show
380	Property value is not valid
381	Property array index is not valid
382	Set not supported at run time
383	Set not supported (read-only property)
385	Need property array index
387	Set not permitted
393	Get not supported at run time
394	Get not supported (write-only property)
400	Form already displayed; can't show modally
402	Code must close topmost modal form first
422	Property not found
423	Property or method not found
424	Object required (Visual Basic)
429	Cannot create ActiveX Component
430	Class does not support Automation or does not support expected interface
432	File name or class name not found during Automation operation (Visual Basic)
438	Object doesn't support this property or method (Visual Basic)
440	Automation error
442	Connection to type library or object library for remote process has been lost
443	Automation object does not have a default value
445	Object doesn't support this action (Visual Basic)
446	Object doesn't support named arguments
447	Object doesn't support current locale setting (Visual Basic)
448	Named argument not found (Visual Basic)
449	Argument not optional (Visual Basic)
450	Wrong number of arguments or property assignment not valid
451	Property let procedure not defined and property get procedure did not return an object
452	Ordinal is not valid
453	Specified DLL function not found
454	Code resource not found
455	Code resource lock error
457	This key is already associated with an element of this collection
458	Variable uses an Automation type not supported in Visual Basic
459	Object or class does not support the set of events
460	Clipboard format is not valid
461	Method or data member not found
462	The remote server machine does not exist or is unavailable (Visual Basic)
463	Class not registered on local machine
481	Picture is not valid
482	Printer error
735	Cannot save file to TEMP
744	Search text not found
746	Replacements too long
999	Stop statement encountered
32768	Feature not yet implemented

The message Application-defined or object-defined error applies to an error code that Visual Basic does not recognize.

See Also

Tasks

Troubleshooting Exception Handling

Concepts

Introduction to Exception Handling

Unstructured Exception Handling Overview

Choosing When to Use Structured and Unstructured Exception Handling

Reference

On Error Statement (Visual Basic)

Err Object (Visual Basic)

Other Resources

Structured Exception Handling in Visual Basic