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Rskm

subscript used on non-accessible variable

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i have seen many pointing out issues related to this, i tried reading through them - still unable to solve mine.. i have a script which reads certain lines based on a search item, this is an iterative process - the ldflst_file gets updated for each iteration and the script finds the line number which has the search item. this works perfectly for few iterations, but stops in some cases abruptly with the error = 

Subscript used on non-accessible variable
$aRead^ ERROR

I have verified that the search item is present in the file. what could be the reason for this code to stop in certain cases. thanks for help

my code below (partial).. full code is in attachment

 

local $aRead=FileReadToArray($ldflst_file)

global $ldflst_var1=" JOINT  LOAD       FORCE(X)        FORCE(Y)        FORCE(Z)       MOMENT(X)       MOMENT(Y)       MOMENT(Z)"

 

for $i= 0 to $ldflst_totlines    ; ldflst_totlines is total number of  lines in the file 'ldflst_file'

    if $aRead[$i]=$ldflst_var1 Then

        $ldflst_LFound=$i

        ExitLoop
        else
        EndIf
Next

 

 

nomo_new1.au3

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Rskm,

You do no error-checking in that script to confirm that you have a valid array before you  loop through it. You might think that there is no possibility of error, but obviously there is one - so add some checking to see just why the array is not present when you think it should be. Then you will have answered your own question.

M23


Public_Domain.png.2d871819fcb9957cf44f4514551a2935.png Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind

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That error is telling you that no array was created when you did the FileReadToArray, which means that function failed to read the file for some reason. find out why that is and you'll probably fix the error.


If I posted any code, assume that code was written using the latest release version unless stated otherwise. Also, if it doesn't work on XP I can't help with that because I don't have access to XP, and I'm not going to.
Give a programmer the correct code and he can do his work for a day. Teach a programmer to debug and he can do his work for a lifetime - by Chirag Gude
How to ask questions the smart way!

I hereby grant any person the right to use any code I post, that I am the original author of, on the autoitscript.com forums, unless I've specifically stated otherwise in the code or the thread post. If you do use my code all I ask, as a courtesy, is to make note of where you got it from.

Back up and restore Windows user files _Array.au3 - Modified array functions that include support for 2D arrays.  -  ColorChooser - An add-on for SciTE that pops up a color dialog so you can select and paste a color code into a script.  -  Customizable Splashscreen GUI w/Progress Bar - Create a custom "splash screen" GUI with a progress bar and custom label.  -  _FileGetProperty - Retrieve the properties of a file  -  SciTE Toolbar - A toolbar demo for use with the SciTE editor  -  GUIRegisterMsg demo - Demo script to show how to use the Windows messages to interact with controls and your GUI.  -   Latin Square password generator

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look at the help file for Arrays. I believe you want to loop on your UBound() (Upper Boundary) of your array. remember you read in a file to ldflst_totlines  and then you should loop 0 to ldflst_totlines -1, right?

you are looping one too many times?

Edited by Earthshine

My resources are limited. You must ask the right questions

 

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thanks melba23,brewmanNH for the suggestion.. i am new with autoit.. how do i make sure the array is created ? sleep option will work  - so that i put sufficient time before/after reading the array.. this error does not happen always, so i cannot check it manually for each iterations - how to ensure that the array is created.. thanks again

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@Rskm the help file is your friend. Look at IsArray.

Check first to ensure the array exists, second that it contains the data you expect (_ArrayDisplay in the help file).

Edited by JLogan3o13

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I made a few minor corrections, this might work now. You are creating the array by FileReadToArray. the loop should work and corrected the Global definition, you can't define globals every time in a loop

 

test.au3

Edited by Earthshine

My resources are limited. You must ask the right questions

 

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