title: Error Table slug: docs-sb3-error-table system: SmileBASIC 3 type: reference category: Error Table source: InstructionList.pdf scraped: 2026-06-21 #

Error Table #

If an error has occurred, the relevant information is stored in the system variables ERRNUM (error number) and ERRLINE (the line where the error occurred).

Number	Error	Description
3	Syntax error	syntax does not follow the grammar rules
4	Illegal function call	the number of arguments specified in an instruction or function is wrong
5	Stack overflow	an overflow has occurred in the stack
6	Stack underflow	an underflow has occurred in the stack
7	Divide by zero	division by zero was attempted
8	Type mismatch	an inconsistent variable type is specified
9	Overflow	the calculation result exceeded the allowed range
10	Out of range	a value outside the allowed range was specified
11	Out of memory	sufficient memory area is not available
12	Out of code memory	sufficient code memory area is not available
13	Out of DATA	DATA that can be READ is insufficient
14	Undefined label	the specified label could not be found
15	Undefined variable	the specified variable could not be found
16	Undefined function	the specified instruction/function could not be found
17	Duplicate label	the same label has been defined twice
18	Duplicate variable	the same variable has been defined twice
19	Duplicate function	the same instruction/function has been defined twice
20	FOR without NEXT	a FOR has no NEXT
21	NEXT without FOR	a NEXT has no FOR
22	REPEAT without UNTIL	a REPEAT has no UNTIL
23	UNTIL without REPEAT	an UNTIL has no REPEAT
24	WHILE without WEND	a WHILE has no WEND
25	WEND without WHILE	a WEND has no WHILE
26	THEN without ENDIF	a THEN has no ENDIF
27	ELSE without ENDIF	an ELSE has no ENDIF
28	ENDIF without IF	an ENDIF has no IF
29	DEF without END	a DEF has no END
30	RETURN without GOSUB	a RETURN has no GOSUB
31	Subscript out of range	array subscripts are not within the allowed range
32	Nested DEF	a DEF has been defined within another DEF
33	Can't continue	the program cannot resume with CONT
34	Illegal symbol string	a label string has been incorrectly described
35	Illegal file format	the file is in a format that SmileBASIC cannot support
36	Mic is not available	a microphone instruction was used without using XON MIC
37	Motion sensor is not available	a motion instruction was used without using XON MOTION
38	Use PRGEDIT before any PRG function	one of the PRG instructions was used without using PRGEDIT
39	Animation is too long	animation definition is too long
40	Illegal animation data	animation data is incorrect
41	String too long	string is too long
42	Communication buffer overflow	an overflow has occurred in the buffer for sending MPSEND
43	Can't use from DIRECT mode	an instruction that does not work in DIRECT mode was used
44	Can't use in program	an instruction that cannot be used in a program was used
45	Can't use in tool program	an instruction that cannot be used from a tool program was used
46	Load failed	failed to read the file
47	Illegal MML	the MML [Music Macro Language] is incorrect