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Lua Error Message


Try the game again.that's really unnessesary, the error TELLS you which addon it is, which is why you don't turn them off. When a function finds an unexpected situation (an exception), it can assume two basic behaviors: It can return an error code (typically nil) or it can raise an error, calling the Therefore, if io.open cannot open a file because of an external reason (such as "file does not exist" or "permission denied"), it returns nil, plus a string with the error message. Ur the best :) Deexee 86 Human Mage 6320 3 posts Deexee Ignored 12 Oct 2012 Copy URL View Post Thanks so much! check over here

Unusual Error Messages[edit] Thursday Dec 01 02:48:56 2016 - maximum event re-entrancy depth exceeded This is caused by too many events triggering each other. Is there a name for this kind of comparator? It won't popup in combat, so you can at least inish the fight first, then check error after. Or use an integer for controlling the loop.

Lua Error Wow

If there are no errors, pcall returns true, plus any values returned by the call. On the other hand, let us consider the io.open function, which opens a file. So why I'm getting this now is a mystery.

The b parameter is expected and here it is nil and produces an error. local function add(a,b) assert(type(a) == "number", "a is not a number") assert(type(b) == "number", "b is not a number") return a+b end add(10) When we run the above program, we will There is no error message printed, etc. > > Is there any sort of way to determine what is wrong with my > script, and print a message to the user? Lua Pcall Arguments If you're embedding Lua in your program, use your traceback function in lua_pcall.

Blizzard seems to be aware of the problem, but didn't do anything about it. :( Prev 1 2 3 Next 1 / 3 Go to Page: Join the Conversation Ignored Have Lua Xpcall Two common error handlers are debug.debug, which gives you a Lua prompt so that you can inspect by yourself what was going on when the error happened (later we will see Basic Lua Errors[edit] Thursday Dec 01 02:48:56 2016 - Workspace.Script:2: attempt to index global 'a' (a function value) Thursday Dec 01 02:48:56 2016 - Workspace.Script:2: attempt to perform arithmetic on local https://www.lua.org/pil/8.4.html All Aboard the Kolmogorov Complexity Train Loading...

The error reporting in Lua modules is extremely limited and poor, as if Lua had been designed by copying the work of computer scientists but developed by novices with almost no Lua Xpcall Example Another example for syntax error is shown below − for a= 1,10 print(a) end When we run the above program, we will get the following output − lua: test2.lua:2: 'do' expected Browse other questions tagged debugging lua or ask your own question. While still largely relevant for later versions, there are some differences.The fourth edition targets Lua 5.3 and is available at Amazon and other bookstores.By buying the book, you also help to

Lua Xpcall

However, the error detection and reporting, of specific error conditions, can often double or triple the complexity of software, and so that is another reason to just report "Script error" when http://eu.battle.net/forums/en/wow/topic/1999603891 For instance, suppose you write a function and its first task is to check whether it was called correctly: function foo (str) if type(str) ~= "string" then error("string expected") end ... Lua Error Wow Blood and Gore Crude Humor Mild Language Suggestive Themes Use of Alcohol Violence Online Interactions Not Rated by the ESRB Forums Log In Shop Support Account Settings Games World of Warcraft® Diablo® Lua Pcall Example This essay describes error and advisory messages (such as "Script error") when running Lua scripts in Wikipedia.

Thursday Dec 01 02:48:56 2016 - Unable to cast value to std::string This is a C++ error from the underlying Roblox function. lua: test2.lua:2: attempt to perform arithmetic on local 'b' (a nil value) stack traceback: test2.lua:2: in function 'add' test2.lua:5: in main chunk [C]: ? While still largely relevant for later versions, there are some differences.The fourth edition targets Lua 5.3 and is available at Amazon and other bookstores.By buying the book, you also help to Thursday Dec 01 02:48:56 2016 - Game script timeout This error occurs when a script in your game runs for too long without waiting. Pcall Lua

Tricky Mistakes[edit] Floating point calculations can be surprising; it's safer to use inequalities. print(a[i]) -- potential error: `a' may not be a table ... Using one instead of the other can lead to an error. If you're calling Lua from C, to always print the stack you can hook in to the luaG_errormsg function.

Once it runs, shows a run time error. Lua_pcall Error Handler Example malformed number near '1..'[edit] This is caused by attempting to concatenate a number without putting a space since dots can be part of a number: print( 1.." tests passed" ) instead Fínisher 90 Night Elf Death Knight 7050 14 posts Fínisher Ignored 16 Dec 2012 Copy URL View Post Thanks dude !

It just returns the status of error.

This can be fixed by adding a semicolon (;) after the first line. A simple example for xpcall is shown below. To install it with LuaRocks, use luarocks install stacktraceplus Then in your code, do: local STP = require "StackTracePlus" debug.traceback = STP.stacktrace In Lua 5.1 this will automatically convert all stack Lua Stack Trace From C Any error inside f is not propagated; instead, xpcall catches the error, calls the err function with the original error object, and returns a status code.

Try the game again.If Yes, then take the half that's enabled and divide that in half. end Then, you call foo with pcall: if pcall(foo) then -- no errors while running `foo' ... In lua, write : local _HandlingError = 0 function _ErrorHandler ( errobj ) if( _HandlingError == 0 ) then _HandlingError = 1 local errStr = tostring(errobj) or "" if( type(errobj)=='table' ) Eithera) inspect the lua errors closely.

Not the answer you're looking for? Shortest code to produce non-deterministic output Why isn't Almond Milk (and other non-animal based 'milk') considered juice? Lua code still exists within the game regardless of AddOns. =] Erwihn 105 Human Mage 17580 2 posts Erwihn Ignored 18 Jul 2013 Copy URL View Post table.concat(errobj, ',') .. "}" end print("Error: \"" ..