Hi everyone.
Recently I tried to launch my project online. I successfully packaged it in HTML5 format.
And tested it with the HTML5LaunchHelper.exe on local host.
But my Chrome just showed the following error.
Uncaught RuntimeError: abort(Assertion failed: target_thread, at: C:\b\s\w\ir\k\install\emscripten\system\lib\pthread\library_pthread.c,464,do_emscripten_dispatch_to_thread). Build with -s ASSERTIONS=1 for more info
A first I thought it might be something wrong with my project. Maybe it is too large(350MB) or has wrong settings. But I tried an empty project and the same error occured.
So I guess maybe the reason is about my UE4 editor. ;(
**I saw the word āemscriptenā in the error. Does it means thereās something to do with Emscripten?
And what is the meaninng of āBuild with -s ASSERTIONS=1 for more infoā ? Should I input this code somewhere?
Has anyone been there before and know how to solve it ? I lookforward so much for your help. Thannnnks!**
Best,
.
Some background information:
My computer is 64-bit and my browser is Chrome.
Iām now using the github revised version UE4 editor which support html5,NOT an official old one. (4.24.3-html5-1.39.18 branch)
(Sad that new official version editor doesnāt support HTML5 anymore.) https://github.com/UnrealEngineHTML5ā¦eprint-project
Dear ,
Thank you for your answer.
I do have two versions of UE4 Engine on my computer. A 4.23 and a 4.24.3 and my current project is on the newer one.
I successfully packaged my project on windows 64-bit (.exe) file.
Do you know how should I fix this problem? Really a headacheā¦
Looking forward to your reply.
Make sure you package your project on development instead of shipping as shipping just donāt work.
You can add those command lines into "**UnrealEngine/Engine/Platforms/HTML5/Source/Programs/UnrealBuildTool/HTML5ToolChain.cs"**
You can sneak in
**Result += " -s ****ASSERTIONS=1****";**
into line:384or any other parameter and modify 370 line to increase maximum memory, I think it breaks above 2gb im not sure. You will have to build **UnrealBuildTool again **for the setting to update.
Also make sure you open console (f12) to find more clues as to what went wrong.
Make sure models donāt have more than 64k vertexes as it is the limit for mobile platform.
The memory in browser is the size of all the game + the RAM the game actually uses.
Visit https://github.com/UnrealEngineHTML5ā¦ntation/issues to find others with same problems.
Also your problem has something to do with multithreading. Check HTML5 under project settings.
Hi ZeuslT,
Thank you so much for your suggestions. Thatās very detailed.
Iām now trying it on.
Here I open the HTML5ToolChain.cs
Should I** replace******line 384 with
******Result += " -s ****ASSERTIONS=1****";**
Or**** add ****it after the original code?ļ¼ I guess it is the former)
****May I ask what code should I input for increase memory? ****Please forgive me for unfamiliar with programming.
If you read the code, it does āifā statement of āenable multithreadingā you can insert your custom command line after the whole if/else so it would work no matter what, which should be line 367 for you. It seems your file and one on github donāt match so line numbers I gave donāt either.
You can change
Result += " -s WASM_MEM_MAX=600MB";
and
Result += " -s TOTAL_MEMORY=600MB";
to increase max memory.
Yes that is the multithreading setting, but I only mentioned that the error you were getting is connected to that, disabling it might give you more leads on how to fix your issue.
Each mesh shouldnāt have more vertexes than 64k. For example you can have a blueprint with multiple <64k vertex meshes.
Hi ZeusLT, I have very big size of HTML5 package above 2 GB, the question is, is it feasible to use a dedicated server for html5 to overcome the load of file size or any problem dur player (download or lag etc) does it make sense at all? thanx
