Heap Corruption error on Compile

[Gerseras]

If i use new SassCompiler().Compile(scssContent); i get an exception that the heap might be corrupted If i write my scssContent to a file and then use the CompileFile function it works flawlessly. Do you have an Idea what could be causing this?

[aviatrix]

Which version of the library are you using ?

[darrenkopp]

Can you provide the value you are passing in?

[Gerseras]

Sorry for my delayed response: I´m using the version x64 3.2.4.1 before that the compile function didn´t even work for me. Also i´m using this on a win 7 x64 pc with iis 7.5 if thats of any use. Here is the scss content which reproduces the issue for me.

edit: It even crashes if do something like

a {color:red;}

original source:

// Global
.slide {
    overflow: hidden;
    -webkit-transition: all 0.3s cubic-bezier(1, 1, 1, 1);
    transition: all 0.3s cubic-bezier(1, 1, 1, 1);  
    &.hidden {
        max-height: 0;
    }
    &.visible {
        max-height: 300px;/* approximate max height */
    }
}
// 1. Colors

// Primary Colors

// Orange 
$primary-color1: #ff7500;
$primary-color1-90: #ff8219; 
$primary-color1-80: #ff9033;  
$primary-color1-70: #ff9e4c;
$primary-color1-60: #ffac66;  
$primary-color1-50: #ffb97f;
$primary-color1-40: #ffc799;  
$primary-color1-30: #ffd5b2;
$primary-color1-15: #ffead8;

// Blue
$primary-color2: #16bade; 
$primary-color2-90: #2dc0e1;
$primary-color2-80: #44c7e4;
$primary-color2-70: #5ccee8;
$primary-color2-60: #73d5eb;  
$primary-color2-50: #8adcee;
$primary-color2-40: #a1e3f1;  
$primary-color2-30: #b9eaf5;
$primary-color2-15: #dcf4fa; 

$primary-color3: #ffffff;  
$primary-color4: #000000;
$primary-color5: #445056;

// Feedback Colors
$feedback-color-positive: #006600;
$feedback-color-negative: #c90707;

// Shade Colors
$shade-color-35: #a5a5a5;
$shade-color-15: #e3e3e3;
$shade-color-10: #efefef;
$shade-color-5:  #f6f6f6;

// 2. Typography

$font-stack:  CI, Arial, sans-serif;
$icon-font: "soda-icon";

//Explicitly set font-size on input-fields to prevent the auto-zoom
//http://www.jonassebastianohlsson.com/blog/2013/11/25/how-to-stop-zoom-in-on-input-focus-on-mobile-devices/
$form-field-font-size: 1.0 rem;
$form-field-padding: 45px;
// Fontsizes

$font-size-default: 1rem;

$font-size-small-10: 0.875rem;

$font-size-large-10: 1.15rem;
$font-size-large-20: 1.25rem;
$font-size-large-30: 1.5rem;
$font-size-large-40: 1.75rem;

// Sizes

$page-padding: 10px;        // The space between the website and the outermost edge

// Sidebar

// Footer

[JimBobSquarePants]

I'm getting the same error with v3.2.5 64bit

Unhandled exception at 0x00007FF85DF00F20 (ntdll.dll) in w3wp.exe: 0xC0000374: A heap has been corrupted (parameters: 0x00007FF85DF3DD40).

[JimBobSquarePants]

Just bumping the thread to see if there are any updates to this? Unfortunately I've not been able to release some much needed updates to one of my projects as libsass-net is a dependency.

[darrenkopp]

The problem is in the last two FreeString statements I believe, but why those have issues in the 64-bit version but not the 32-bit version, I have no idea.

[JimBobSquarePants]

Bugger... I was hoping you had a quick fix. C++ is an unknown for me.

[darrenkopp]

while trying stuff a night ago i couldn't get anything that would work on both, but i could get something to work on 32-bit or 64-bit, so maybe i'll special case and use different methods for different bitness. c++ man... :cry:

[danpetitt]

Just browsing on iPad in bed so not much I can do, but I imagine somewhere it is already freeing something. To guard against this initially I would, in StringToAnsi, set p to NULL once memory was freed to ensure you don't free twice, but I would have to debug code to see what might be happening to your heap. Eg.

if (p)
{
  Marshal::FreeCoTaskMem(IntPtr((void *) p));
  p = NULL;
}

[darrenkopp]

Well, it'd be odd if it was only being freed up on the 64-bit version. It works on the 32-bit version

[SavchukSergey]

Hi, I'm getting heap corrupted error when I choose .net framework 4.5.1, 4.5.2 or 4.6 for my test project. When I select framework 4.5 everything works.

I'm using sample code

    class Program {
        static void Main(string[] args) {
            var sassCompiler = new SassCompiler();
            var result = sassCompiler.Compile("body { color:blue; }");
            System.IO.File.WriteAllText(@"d:\temp\compact.css", result);
        }
    }

Environment: Windows 10, VS2015

[JimBobSquarePants]

:metal:

[darrenkopp]

this just got deployed to nuget

[JimBobSquarePants]

Wizard! Well happy you got it sorted.