AFL Error List

Generic Errors (1..100)

• Error 1. Operation not allowed. Operator/operand type mismatch.
• Error 2. Incorrect type of argument. Expecting number or array here.
• Error 3. Type mismatch, Unary minus operator requires number or array
• Error 4. Incorrect type of argument(s). Expecting number here.
• Error 5. Argument #1 has incorrect type (the function expects different argument type here)
• Error 6. Condition in IF, WHILE, FOR statements has to be Numeric or Boolean type. You can not use array here
• Error 7. Condition in IF, WHILE, FOR statements has to be Numeric or Boolean type. You can not use STRING here
• Error 8. Type mismatch, the value assigned to the array element has to be a number. You can not use array...
• Error 9. Array subscript has to be a number
• Error 10. Subscript out of range. You must not access array elements outside 0..(BarCount-1) range
• Error 11. Subscript operator [] requires array or number type. String can not be used here.
• Error 12. Subscript operator [] requires array or number type.
• Error 13. Endless loop detected in WHILE loop
• Error 14. Endless loop detected in DO-WHILE loop
• Error 15. Endless loop detected in FOR loop
• Error 16. Too many arguments
• Error 17. Missing arguments
• Error 18. COM object variable is not initialized or has invalid type (valid COM object handle required)
• Error 19. COM method/function 'function name' call failed.
• Error 20. COM Method/function '%s' does not exist
• Error 21. Relative strength base symbol not found
• Error 22. Bad 'format' argument type - format has to be a number (not array)
• Error 23. GetExtraData call failed
• Error 24. This formula requires AmiBroker version '...' (or higher).
• Error 25. SetVariable() called from plug in was not successful. Identifier is already used in a different context.
• Error 26. File handle passed to the function is invalid (equal to zero).
• Error 27. Invalid number of arguments passed to Call Function (..) from plugin DLL
• Error 28. Out of memory
• Error 29. Variable used without having been initialized.
• Error 30. Syntax error
• Error 31. Syntax error, expecting 'list of tokens'
• Error 32. Syntax error, probably missing semicolon at the end of the previous line
• Error 33. The identifier is already in use. You attempted to assign value to the identifier representing a function.
• Error 34. The identifier is already in use. You attempted to define the function that has the same identifier as global variable.
• Error 35. Shift+BREAK pressed. Loop terminated.
• Error 36. N-th argument of the function call has no value set
• Error 37. Unsupported field in SetOptions
• Error 38. Unsupported field in GetOptions
• Error 39. CategoryAddSymbol: Setting sector is unsupported, set industry instead
• Error 40. CategoryRemoveSymbol: Removing from sector is unsupported, remove from industry instead
• Error 41. Unsupported field in GetRTData
• Error 42. #include failed because the file does not exist: 'filename' (current working directory is '...')
• Error 43. Variable stops are not supported in Rotational Trading mode
• Error 44. SectorID() is outside 0..63 range.
• Error 45. Failed to launch trading interface
• Error 46. Missing comma
• Error 47. Exception occurred during AFL formula execution
• Error 48. N-volume bar compressed data longer than base time frame. Use higher compression factor.
• Error 49. Optimization parameter name must not be empty.
• Error 50. Optimization parameter minimum value must be less than or equal to maximum and step parameter needs to be greater than zero.
• Error 51. Array subscript has Null value. Subscript must be within 0...BarCount-1 range.
• Error 52. Invalid argument value for name() function. Argument 'paramname' must be positive (and not Null)
• Error 53. You have N open file(s) that you forgot to close. You must call fclose() function for every file opened with
• Error 54. Incorrect espace sequence. Supported sequences are \n, \r, \t, \'' and \\ (gives single backslash)

Optimizer plugin errors (90..99)

• Error 90. Specified Optimizer Engine not found
• Error 91. OptimizerSetOption expects STRING value
• Error 92. OptimizerSetOption expects NUMBER (scalar numeric) value
• Error 93. Specified option is not supported / not available by the selected optimizer
• Error 94. External Optimizer is not selected. You must call OptimizerSetEngine() prior to calling OptimizerSetOption()

Generic Warnings (500..599)

• Warning 501. Assignment within conditional. Did you mean == instead of = ?
• Warning 502. You are calling Plot()/PlotOHLC() function over 500 times, it is highly inefficient. Reduce number of
• Warning 503. Using OLE / CreateObject / CreateStaticObject is not multi-threading friendly.

Analysis window errors (700..799):

• Error 701. Missing buy/sell variable assignments
• Error 702. Missing short/cover variable assignments
• Error 703. Rotational trading requires PositionScore variable.
• Error 704. In Rotational trading you must NOT use buy/sell/short/cover signals.
• Error 705. You can not use HoldMinBars together with Allow Same Bar exit.
• Error 706. Show Arrows feature needs a Trade list.

Analysis window Warnings and Notices (800..899)

• Notice 801: It is advised to turn ON 'Pad and align to reference symbol' option when using ranking, composites or rotational trading (StaticVarGenerateRanks, AddToComposite, StaticVarAdd, EnableRotationalTrading)

Chart Warnings (900..999)

• Warning 901. Chart incomplete. Rendering timeout reached (... ms). Rendered .... Plot()s
• Warning 902. Can not plot a chart in a logarithmic scale as the data set contains zero(s) and/or negative value(s)
• Warning 903. Using Z-order outside -5..5 range may result in increased rendering times