How To Fix A Referance Error In Game Maker 2

The kickoff level of fault reporting when programming your games in GameMaker is in the code or GML Visual editor, and information technology'southward the syntax checker. Every bit you write your code - or add your actions - GameMaker volition check that information technology follows the established syntax for the language, and flag whatsoever issues that information technology finds so yous can fix them before it comes to running the game or compiling an executable.

Syntax error checking happens differently depending on whether you have enabled Feather in the Feather Settings.

Syntax errors will update every bit you write your code (there will exist a short interruption betwixt typing something and whatever errors actualization in this window to prevent errors existence reported for unfinished code), and will follow the format:

Double clicking on whatsoever of the errors shown in the output console will take you to the line in the object event or script that has the error so you can edit it.

It should be noted that some of these errors will be shown at specific places in your code, but the actual error may be cause past something elsewhere, or 1 single outcome may provoke multiple error letters:

In the to a higher place image, all 3 errors have been provoked  past a single mistake - the apply of a semi colon ";" instead of a comma "," at line 220 for the function variable_instance_exists().

Error  Type Clarification Malformed reference [val] This ways there is an internal AST Validation Mistake (y'all should never come across this mistake, but if y'all do please consider filing a problems study from the Help Menu) Malformed hexadecimal character escape sequence This can happen when you lot take used the hexadecimal value for an escape character in a string and this has the wrong format. Unexpected node [val] This means there is an internal AST Validation Mistake (y'all should never see this error, merely if yous exercise please consider filing a bug report from the Help Menu) Exception while parsing [val] This means there is an internal AST Validation Error (you should never see this error, but if you practice please consider filing a problems report from the Help Menu) Malformed id reference [val] Unnecessary expression [val] used every bit a statement This error occurs when the syntax checker detects an expression (shown in [val]) where it was expecting a statement. For example, the following code will throw the error equally it'southward expecting the ternary operator ? simply encounters 32:
temp_x = ten < (room_width / 2)  32: room_width - 32; Malformed assortment reference [val] This means y'all have tried to reference an assortment in an incorrect way, and [val] will show the reference. Unexpected binary operator [val] This mistake occurs when you use one of the bitwise operators in a place where information technology shouldn't exist getting used, with [val] showing where. Unterminated string literal This fault will occur when you lot open up a string using @" or " simply y'all do not close information technology before the finish of lawmaking. Single quotes no longer allowed for string This error occurs when you try to use strings wrapped in single quotes, eg: 'Hello Earth', instead of double quotes, eg: "Hello World". Unexpected syntax error This mistake denotes a syntax error which the parser is not able to identify more specifically. Got "[val1]", expected "[val2]" This happens when the syntax checker expects some value or symbol simply gets a dissimilar one, where [val1] is the electric current symbol or value, and [val2] is the expected symbol or value. For instance:
Got "{", expected "(" Got "[val1]", expected "[val2]" or "[val3]" As in a higher place, but for when there are multiple possible expected symbols. Expected expression This error occurs when the syntax checker expects an expression but ane isn't given. Empty [val] statement This happens when you lot terminate a statement and go out it empty. For instance, the post-obit code volition requite the fault (note the terminating semi-colon):
if (x < 0); Nested role calls are not allowed This can happen when you are trying to nest role calls within a argument, eg:
ds_list_find_value(list, 0)).sprite_index Number of arguments for role [val1] expected [val2] got val[3] This fault tells yous that you have not supplied the right number of arguments to the part shown for [val1], which expects the number shown in [val2] only got those shown in [val3]. Number of arguments for function [val1] expected [val2] - [val3] got [val4] As in a higher place only for a range of arguments. Duplicate enum entry plant This error tells yous that yous have duplicated an enum variable entry name Duplicate enum institute This error tells you that you have defined two or more enums with the same name. Missing variable name in globalvar This tells you that you have used the globalvar proclamation only omitted to supply a variable name. Missing variable proper name in var This tells you that yous have used the var declaration just omitted to supply a variable name. No matching #region found for

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