Memory Access Out of Bounds — WebGL
I was getting this error when I try to load my Web game:
My game is loaded at this domain: Highest Flavor Website Link
This is my project settings at the time of build export: 
Please give me some suggestion to solve this problem.
3 Answers 3
This error happened to me due to using the dynamic keyword. After replacing all my dynamic types with object the error was gone. Apparently the dynamic keyword is not supported on WebGL builds.
I’ve finally fixed the same error in my project. Here is what i did:
Narrow down the line of code that crashes WebGL. Go through the painfull process of pinpointing the line of code that is the source of the error. I had this "luck" that error occured when I’ve hit button and tried to load UIScene in Addition mode. So at first I found the script in the scene which when disabled got rid of the crash. Then I’ve repeated the steps and digged deeper into lines. After 2 hours of builds, comments etc I’ve found that the code was not working was setting the new color for UnityEngine.UI.Image. Which was pretty weird because in playmode everything worked ok.
Find solution. I think my solution might not be universal but I think there is something going in the Unity gameloop/lifecycle when running WebGL. The source of the problem was that i set the field that was storing my UI.Image in the Start method and then in some function I’ve tried to change the color.
Property was not exposed in inspector.
then this line below was the cause of the crash
- Fixing — so I’ve added [SerializeField] attribute to the field and set it up in editor, dragged the Image into the inspector slot. An it fixed it. I suspect that WebGL build might perform some methods in different order, or maybe the multipleScene loaded together might to do with it. I’m not sure but the field was not set properly with previous code fot WebGL build.
Bonus: I’ve also fixed some issues that was not critical (not crushing WebGL game) but not working properly as expected in playmode. This also has got to do with trying to set some object in Start() method and then doing something on them. The collection was not set up (probably null) in WebGL.
And this also started working when I’ve added [SerializeField] to effects and hook it up in the scene.
Memory access out of bounds как исправить
I was getting this error when I try to load my Web game: 
My game is loaded at this domain: Highest Flavor Website Link
This is my project settings at the time of build export:
Please give me some suggestion to solve this problem.
3 Answers 3
I’ve finally fixed the same error in my project. Here is what i did:
Narrow down the line of code that crashes WebGL. Go through the painfull process of pinpointing the line of code that is the source of the error. I had this «luck» that error occured when I’ve hit button and tried to load UIScene in Addition mode. So at first I found the script in the scene which when disabled got rid of the crash. Then I’ve repeated the steps and digged deeper into lines. After 2 hours of builds, comments etc I’ve found that the code was not working was setting the new color for UnityEngine.UI.Image. Which was pretty weird because in playmode everything worked ok.
Find solution. I think my solution might not be universal but I think there is something going in the Unity gameloop/lifecycle when running WebGL. The source of the problem was that i set the field that was storing my UI.Image in the Start method and then in some function I’ve tried to change the color.
Property was not exposed in inspector.
then this line below was the cause of the crash
- Fixing — so I’ve added [SerializeField] attribute to the field and set it up in editor, dragged the Image into the inspector slot. An it fixed it. I suspect that WebGL build might perform some methods in different order, or maybe the multipleScene loaded together might to do with it. I’m not sure but the field was not set properly with previous code fot WebGL build.
Bonus: I’ve also fixed some issues that was not critical (not crushing WebGL game) but not working properly as expected in playmode. This also has got to do with trying to set some object in Start() method and then doing something on them. The collection was not set up (probably null) in WebGL.
And this also started working when I’ve added [SerializeField] to effects and hook it up in the scene.
Memory access out of bounds error when using _malloc on WASM compiled code #5161
I have successfully compiled stb_dxt , a DXT texture compressor written in C++, to emscripten and asm.js . This works wonderfully in Firefox but performance in Chrome is poor. I am therefore attempting to compile the same program to WebAssembly using the following flags:
emcc -O3 stb_dxt.cpp -o dxt.js -s DISABLE_EXCEPTION_CATCHING=1 -s NO_FILESYSTEM=1 -s EXPORTED_FUNCTIONS=»[‘_rygCompress’]» -s WASM=1 -s ALLOW_MEMORY_GROWTH=1
My Javascript glue code, which works perfectly with asm.js , needs to pass in an image ArrayBuffer like so:
As you can see I am using _malloc to allocate the memory for the passed in ArrayBuffer and also for what will be the resulting output ArrayBuffer once the program has run and compressed the texture to DXT1.
However, as soon as the first call to _malloc fires, I am getting an out of bounds memory error:
I assume that I’m doing something wrong, any help would be greatly appreciated.
Memory access out of bounds как исправить
«RuntimeError: memory access out of bounds» error is thrown when running a WebGL build on Chrome via a file:// path using —allow-file-access-from-files
How to reproduce:
1. Close any active instances of Google Chrome
2. Open a Terminal window
3. Type «open -a «Google Chrome» —args —allow-file-access-from-files» and press Enter
4. In the attached build «Build 2019.4.33f1», open «index.html» with Google Chrome
Expected result: The build displays the «test.png» image
Actual result: The build shows a blank screen
Reproducible with: 2019.4.33f1, 2020.1.0a6
Could not test with: 2020.1.0a7, 2020.3.23f1, 2021.2.3f1, 2022.1.0a15 (Error: Ensure CORS requests are made on supported schemes)
Notes:
1. Reproduced on Chrome Version 96.0.4664.55
2. The build works as expected when running from a local server
3. The error is not reproducible on any Unity version and works as expected with Firefox
Errors in Chrome’s Console:
UnityLoader.js:1150 exception thrown: RuntimeError: memory access out of bounds,RuntimeError: memory access out of bounds
Invoking error handler due to
Uncaught RuntimeError: memory access out of bounds
Resolution Note (2022.2.X):
Thank you for opening the bug. However, the Unity WebGL build target is designed for usage via a web server. We are unable to provide workarounds for browser limitations when accessing content locally via a file:// url.