4.8.0 HTML5 package error

[anonymous_user_4c9fba8e]

Hello, I’ve been successfuly packaging my project to HTML5 in version 4.7.6, but in 4.8.0 an error occurs that actually gives me no hints
One line seems interesting: “MemoryError”
After installing new engine version I only set Python path and Emscripten path in the new HTML5 SDK settings. I didn’t change anything in the .ini file.

Here is the error log:

Packaging (HTML5): UnrealBuildTool: INFO root: (Emscripten: Running sanity checks)
MainFrameActions: Packaging (HTML5): UnrealBuildTool: C:\Program Files\Emscripten\emscripten\1.29.0\system\lib\libc\musl\src\math\fma.c:276:22: warning: ^ has lower precedence than !=; != will be evaluated first -Wparentheses]
MainFrameActions: Packaging (HTML5): UnrealBuildTool: if (bits_lost != 1 ^ (int)(uhi.i & 1)) {
MainFrameActions: Packaging (HTML5): UnrealBuildTool: ~~~~~~~~~~~~~~~^
MainFrameActions: Packaging (HTML5): UnrealBuildTool: C:\Program Files\Emscripten\emscripten\1.29.0\system\lib\libc\musl\src\math\fma.c:276:22: note: place parentheses around the ‘!=’ expression to silence this warning
MainFrameActions: Packaging (HTML5): UnrealBuildTool: if (bits_lost != 1 ^ (int)(uhi.i & 1)) {
MainFrameActions: Packaging (HTML5): UnrealBuildTool: ^
MainFrameActions: Packaging (HTML5): UnrealBuildTool: ( )
MainFrameActions: Packaging (HTML5): UnrealBuildTool: C:\Program Files\Emscripten\emscripten\1.29.0\system\lib\libc\musl\src\math\fma.c:276:22: note: place parentheses around the ^ expression to evaluate it first
MainFrameActions: Packaging (HTML5): UnrealBuildTool: if (bits_lost != 1 ^ (int)(uhi.i & 1)) {
MainFrameActions: Packaging (HTML5): UnrealBuildTool: ^
MainFrameActions: Packaging (HTML5): UnrealBuildTool: ( )
MainFrameActions: Packaging (HTML5): UnrealBuildTool: 1 warning generated.
MainFrameActions: Packaging (HTML5): UnrealBuildTool: WARNING root: emcc: link command line is very long, even with response file – use paths with no spaces
MainFrameActions: Packaging (HTML5): UnrealBuildTool: Traceback (most recent call last):
MainFrameActions: Packaging (HTML5): UnrealBuildTool: File “C:\Program Files\Emscripten\emscripten\1.29.0\emcc”, line 1529, in <module>
MainFrameActions: Packaging (HTML5): UnrealBuildTool: flush_js_optimizer_queue()
MainFrameActions: Packaging (HTML5): UnrealBuildTool: File “C:\Program Files\Emscripten\emscripten\1.29.0\emcc”, line 1438, in flush_js_optimizer_queue
MainFrameActions: Packaging (HTML5): UnrealBuildTool: run_passes(chunks*, ‘js_opts_’ + str(i), just_split=‘receiveJSON’ in chunks*, just_concat=‘emitJSON’ in chunks*)
MainFrameActions: Packaging (HTML5): UnrealBuildTool: File “C:\Program Files\Emscripten\emscripten\1.29.0\emcc”, line 1409, in run_passes
MainFrameActions: Packaging (HTML5): UnrealBuildTool: final = shared.Building.js_optimizer(final, passes, jcache, debug_level >= 4, js_optimizer_extra_info, just_split=just_split, just_concat=just_concat)
MainFrameActions: Packaging (HTML5): UnrealBuildTool: File “C:\Program Files\Emscripten\emscripten\1.29.0 ools\shared.py”, line 1637, in js_optimizer
MainFrameActions: Packaging (HTML5): UnrealBuildTool: ret = js_optimizer.run(filename, passes, NODE_JS, jcache, debug, extra_info, just_split, just_concat)
MainFrameActions: Packaging (HTML5): UnrealBuildTool: File “C:\Program Files\Emscripten\emscripten\1.29.0 ools\js_optimizer.py”, line 479, in run
MainFrameActions: Packaging (HTML5): UnrealBuildTool: return temp_files.run_and_clean(lambda: run_on_js(filename, passes, js_engine, jcache, source_map, extra_info, just_split, just_concat))
MainFrameActions: Packaging (HTML5): UnrealBuildTool: File “C:\Program Files\Emscripten\emscripten\1.29.0 ools empfiles.py”, line 39, in run_and_clean
MainFrameActions: Packaging (HTML5): UnrealBuildTool: return func()
MainFrameActions: Packaging (HTML5): UnrealBuildTool: File “C:\Program Files\Emscripten\emscripten\1.29.0 ools\js_optimizer.py”, line 479, in <lambda>
MainFrameActions: Packaging (HTML5): UnrealBuildTool: return temp_files.run_and_clean(lambda: run_on_js(filename, passes, js_engine, jcache, source_map, extra_info, just_split, just_concat))
MainFrameActions: Packaging (HTML5): UnrealBuildTool: File “C:\Program Files\Emscripten\emscripten\1.29.0 ools\js_optimizer.py”, line 194, in run_on_js
MainFrameActions: Packaging (HTML5): UnrealBuildTool: js = open(filename).read()
MainFrameActions: Packaging (HTML5): UnrealBuildTool: MemoryError
MainFrameActions: Packaging (HTML5): UnrealBuildTool: -------- End Detailed Actions Stats -----------------------------------------------------------
MainFrameActions: Packaging (HTML5): UnrealBuildTool: ERROR: UBT ERROR: Failed to produce item: D:\projekty\Phobos\aplikacja\projekt\Phobos\Binaries\HTML5\Phobos.js
MainFrameActions: Packaging (HTML5): UnrealBuildTool: Total build time: 346,59 seconds
MainFrameActions: Packaging (HTML5): CommandUtils.Run: Run: Took 346,7302614s to run UnrealBuildTool.exe, ExitCode=5
MainFrameActions: Packaging (HTML5): ErrorReporter.Error: ERROR: AutomationTool error: Command failed (Result:5): D:\Epic Games\4.8\Engine\Binaries\DotNET\UnrealBuildTool.exe Phobos HTML5 Development D:\projekty\Phobos\aplikacja\projekt\Phobos\Phobos.uproject -noxge -rocket -NoHotReloadFrom
MainFrameActions: Packaging (HTML5): IDE -ignorejunk. See logfile for details: ‘UnrealBuildTool.txt’
MainFrameActions: Packaging (HTML5): BuildCommand.Execute: ERROR: BUILD FAILED
MainFrameActions: Packaging (HTML5): Program.Main: ERROR: AutomationTool terminated with exception:
MainFrameActions: Packaging (HTML5): Program.Main: ERROR: Exception in AutomationTool: Command failed (Result:5): D:\Epic Games\4.8\Engine\Binaries\DotNET\UnrealBuildTool.exe Phobos HTML5 Development D:\projekty\Phobos\aplikacja\projekt\Phobos\Phobos.uproject -noxge -rocket -NoHotReloadFrom
MainFrameActions: Packaging (HTML5): IDE -ignorejunk. See logfile for details: ‘UnrealBuildTool.txt’
MainFrameActions: Packaging (HTML5): Stacktrace: w AutomationTool.CommandUtils.RunAndLog(String App, String CommandLine, String Logfile, Int32 MaxSuccessCode, String Input, ERunOptions Options, Dictionary2 EnvVars) MainFrameActions: Packaging (HTML5): w AutomationTool.CommandUtils.RunUBT(CommandEnvironment Env, String UBTExecutable, String CommandLine, String LogName, Dictionary2 EnvVars)
MainFrameActions: Packaging (HTML5): w AutomationTool.UE4Build.BuildWithUBT(String ProjectName, String TargetName, UnrealTargetPlatform TargetPlatform, String Config, String UprojectPath, Boolean ForceMonolithic, Boolean ForceNonUnity, Boolean ForceDebugInfo, Boolean ForceFlushMac, Boolean DisableXGE, String InAddArgs, Boolean ForceUnity, Dictionary2 EnvVars) MainFrameActions: Packaging (HTML5): w AutomationTool.UE4Build.Build(BuildAgenda Agenda, Nullable1 InDeleteBuildProducts, Boolean InUpdateVersionFiles, Boolean InForceNoXGE, Boolean InForceNonUnity, Boolean InForceUnity, Dictionary2 PlatformEnvVars) MainFrameActions: Packaging (HTML5): w Project.Build(BuildCommand Command, ProjectParams Params, Int32 WorkingCL) MainFrameActions: Packaging (HTML5): w BuildCookRun.DoBuildCookRun(ProjectParams Params) MainFrameActions: Packaging (HTML5): w BuildCommand.Execute() MainFrameActions: Packaging (HTML5): w AutomationTool.Automation.Execute(List1 CommandsToExecute, CaselessDictionary`1 Commands)
MainFrameActions: Packaging (HTML5): w AutomationTool.Automation.Process(String] CommandLine)
MainFrameActions: Packaging (HTML5): w AutomationTool.Program.MainProc(Object Param)
MainFrameActions: Packaging (HTML5): w AutomationTool.InternalUtils.RunSingleInstance(MainProc Main, Object Param)
MainFrameActions: Packaging (HTML5): w AutomationTool.Program.Main()
MainFrameActions: Packaging (HTML5): Program.Main: ERROR: Command failed (Result:5): D:\Epic Games\4.8\Engine\Binaries\DotNET\UnrealBuildTool.exe Phobos HTML5 Development D:\projekty\Phobos\aplikacja\projekt\Phobos\Phobos.uproject -noxge -rocket -NoHotReloadFromIDE -ignorejunk. See logfile for details: ‘UnrealBuildTool.txt’
MainFrameActions: Packaging (HTML5): ProcessManager.KillAll: Trying to kill 0 spawned processes.
MainFrameActions: Packaging (HTML5): Program.Main: AutomationTool exiting with ExitCode=5
MainFrameActions: Packaging (HTML5): Domain_ProcessExit
MainFrameActions: Packaging (HTML5): ProcessManager.KillAll: Trying to kill 0 spawned processes.
MainFrameActions: Packaging (HTML5): copying UAT log files…
MainFrameActions: Packaging (HTML5): RunUAT.bat ERROR: AutomationTool was unable to run successfully.
MainFrameActions: Packaging (HTML5): BUILD FAILED

[anonymous_user_a08c0bf2]

Hey Kosmo,

In 4.8.0, have you tried going into the Project Settings and scrolling down to HTML5 and changing the size of the memory? This has been linked to a few memory issues I’ve seen with HTML5 packaged projects. However, I wanted to let you know that I am able to successfully package HTML5 games and check them on a simple python server. I’m using Emscripten 1.29.0.

Here is how my HTML5Engine.ini file looks:
[Audio]
AudioDeviceModuleName=HTML5Audio

[OnlineSubsystemMcp]
benabled=false

[SystemSettings]
r.setres=800x600

; These following settings have moved to the inis and can be set from the editor
; These old value are left as reference until all old code paths are removed
;[BuildSettings]
;HeapSize=1024

;[HTML5DevicesWindows]
; (64 bit)=“C:/Program Files//firefox.exe”
; (32 bit)=“C:/Program Files (x86)//firefox.exe”
;Firefox (32 bit)=“C:/Program Files (x86)/Mozilla Firefox/firefox.exe”
;Firefox Aurora (32 bit)=“C:/Program Files (x86)/Aurora/firefox.exe”
;Chrome=“C:/Program Files (x86)//Chrome/Application/chrome.exe”

;all browsers on mac are 64 bit, 64 bit browsers can allocate more than 512MB of memory to around 1.5 GB.
;[HTML5DevicesMac]
;Safari=“/Applications/Safari.app/Contents/MacOS/Safari”
;Firefox=“/Applications/Firefox.app/Contents/MacOS/firefox-bin”
;Firefox (Aurora)=“/Applications/FirefoxAurora.app/Contents/MacOS/firefox-bin”

;[HTML5DevicesLinux]
;Firefox=“/usr/bin/firefox”

;[HTML5SDKPaths]
;Mac=“/path/to/emscripten/sdk”

If you have any further questions regarding the trouble you’re having with your HTML5 project, feel free to submit a new question to our AnswerHub and we’ll assist you further.

Thanks!

[anonymous_user_4c9fba8e]

Hey ,

Thank you for support. I’ve checked .ini file - looks the same and I’ve changed memory heap to 4096. Unfortunately there’s still error, looks a bit different… interesting.
I’ll try with clean projects later to be sure…

MainFrameActions: Packaging (HTML5): UnrealBuildTool: INFO root: (Emscripten: Running sanity checks)
MainFrameActions: Packaging (HTML5): UnrealBuildTool: WARNING root: emcc: link command line is very long, even with response file – use paths with no spaces
MainFrameActions: Packaging (HTML5): UnrealBuildTool: Traceback (most recent call last):
MainFrameActions: Packaging (HTML5): UnrealBuildTool: File “C:\Program Files\Emscripten\emscripten\1.29.0\emcc”, line 1529, in <module>
MainFrameActions: Packaging (HTML5): UnrealBuildTool: flush_js_optimizer_queue()
MainFrameActions: Packaging (HTML5): UnrealBuildTool: File “C:\Program Files\Emscripten\emscripten\1.29.0\emcc”, line 1438, in flush_js_optimizer_queue
MainFrameActions: Packaging (HTML5): UnrealBuildTool: run_passes(chunks*, ‘js_opts_’ + str(i), just_split=‘receiveJSON’ in chunks*, just_concat=‘emitJSON’ in chunks*)
MainFrameActions: Packaging (HTML5): UnrealBuildTool: File “C:\Program Files\Emscripten\emscripten\1.29.0\emcc”, line 1409, in run_passes
MainFrameActions: Packaging (HTML5): UnrealBuildTool: final = shared.Building.js_optimizer(final, passes, jcache, debug_level >= 4, js_optimizer_extra_info, just_split=just_split, just_concat=just_concat)
MainFrameActions: Packaging (HTML5): UnrealBuildTool: File “C:\Program Files\Emscripten\emscripten\1.29.0 ools\shared.py”, line 1637, in js_optimizer
MainFrameActions: Packaging (HTML5): UnrealBuildTool: ret = js_optimizer.run(filename, passes, NODE_JS, jcache, debug, extra_info, just_split, just_concat)
MainFrameActions: Packaging (HTML5): UnrealBuildTool: File “C:\Program Files\Emscripten\emscripten\1.29.0 ools\js_optimizer.py”, line 479, in run
MainFrameActions: Packaging (HTML5): UnrealBuildTool: return temp_files.run_and_clean(lambda: run_on_js(filename, passes, js_engine, jcache, source_map, extra_info, just_split, just_concat))
MainFrameActions: Packaging (HTML5): UnrealBuildTool: File “C:\Program Files\Emscripten\emscripten\1.29.0 ools empfiles.py”, line 39, in run_and_clean
MainFrameActions: Packaging (HTML5): UnrealBuildTool: return func()
MainFrameActions: Packaging (HTML5): UnrealBuildTool: File “C:\Program Files\Emscripten\emscripten\1.29.0 ools\js_optimizer.py”, line 479, in <lambda>
MainFrameActions: Packaging (HTML5): UnrealBuildTool: return temp_files.run_and_clean(lambda: run_on_js(filename, passes, js_engine, jcache, source_map, extra_info, just_split, just_concat))
MainFrameActions: Packaging (HTML5): UnrealBuildTool: File “C:\Program Files\Emscripten\emscripten\1.29.0 ools\js_optimizer.py”, line 194, in run_on_js
MainFrameActions: Packaging (HTML5): UnrealBuildTool: js = open(filename).read()
MainFrameActions: Packaging (HTML5): UnrealBuildTool: MemoryError
MainFrameActions: Packaging (HTML5): UnrealBuildTool: -------- End Detailed Actions Stats -----------------------------------------------------------
MainFrameActions: Packaging (HTML5): UnrealBuildTool: ERROR: UBT ERROR: Failed to produce item: D:\projekty\Phobos\aplikacja\projekt\Phobos\Binaries\HTML5\Phobos.js
MainFrameActions: Packaging (HTML5): UnrealBuildTool: Total build time: 426,38 seconds
MainFrameActions: Packaging (HTML5): CommandUtils.Run: Run: Took 426,5004665s to run UnrealBuildTool.exe, ExitCode=5
MainFrameActions: Packaging (HTML5): ErrorReporter.Error: ERROR: AutomationTool error: Command failed (Result:5): D:\Epic Games\4.8\Engine\Binaries\DotNET\UnrealBuildTool.exe Phobos HTML5 Development D:\projekty\Phobos\aplikacja\projekt\Phobos\Phobos.uproject -noxge -rocket -NoHotReloadFrom
MainFrameActions: Packaging (HTML5): IDE -ignorejunk. See logfile for details: ‘UnrealBuildTool.txt’
MainFrameActions: Packaging (HTML5): BuildCommand.Execute: ERROR: BUILD FAILED
MainFrameActions: Packaging (HTML5): Program.Main: ERROR: AutomationTool terminated with exception:
MainFrameActions: Packaging (HTML5): Program.Main: ERROR: Exception in AutomationTool: Command failed (Result:5): D:\Epic Games\4.8\Engine\Binaries\DotNET\UnrealBuildTool.exe Phobos HTML5 Development D:\projekty\Phobos\aplikacja\projekt\Phobos\Phobos.uproject -noxge -rocket -NoHotReloadFrom
MainFrameActions: Packaging (HTML5): IDE -ignorejunk. See logfile for details: ‘UnrealBuildTool.txt’
MainFrameActions: Packaging (HTML5): Stacktrace: w AutomationTool.CommandUtils.RunAndLog(String App, String CommandLine, String Logfile, Int32 MaxSuccessCode, String Input, ERunOptions Options, Dictionary2 EnvVars) MainFrameActions: Packaging (HTML5): w AutomationTool.CommandUtils.RunUBT(CommandEnvironment Env, String UBTExecutable, String CommandLine, String LogName, Dictionary2 EnvVars)
MainFrameActions: Packaging (HTML5): w AutomationTool.UE4Build.BuildWithUBT(String ProjectName, String TargetName, UnrealTargetPlatform TargetPlatform, String Config, String UprojectPath, Boolean ForceMonolithic, Boolean ForceNonUnity, Boolean ForceDebugInfo, Boolean ForceFlushMac, Boolean DisableXGE, String InAddArgs, Boolean ForceUnity, Dictionary2 EnvVars) MainFrameActions: Packaging (HTML5): w AutomationTool.UE4Build.Build(BuildAgenda Agenda, Nullable1 InDeleteBuildProducts, Boolean InUpdateVersionFiles, Boolean InForceNoXGE, Boolean InForceNonUnity, Boolean InForceUnity, Dictionary2 PlatformEnvVars) MainFrameActions: Packaging (HTML5): w Project.Build(BuildCommand Command, ProjectParams Params, Int32 WorkingCL) MainFrameActions: Packaging (HTML5): w BuildCookRun.DoBuildCookRun(ProjectParams Params) MainFrameActions: Packaging (HTML5): w BuildCommand.Execute() MainFrameActions: Packaging (HTML5): w AutomationTool.Automation.Execute(List1 CommandsToExecute, CaselessDictionary`1 Commands)
MainFrameActions: Packaging (HTML5): w AutomationTool.Automation.Process(String] CommandLine)
MainFrameActions: Packaging (HTML5): w AutomationTool.Program.MainProc(Object Param)
MainFrameActions: Packaging (HTML5): w AutomationTool.InternalUtils.RunSingleInstance(MainProc Main, Object Param)
MainFrameActions: Packaging (HTML5): w AutomationTool.Program.Main()
MainFrameActions: Packaging (HTML5): Program.Main: ERROR: Command failed (Result:5): D:\Epic Games\4.8\Engine\Binaries\DotNET\UnrealBuildTool.exe Phobos HTML5 Development D:\projekty\Phobos\aplikacja\projekt\Phobos\Phobos.uproject -noxge -rocket -NoHotReloadFromIDE -ignorejunk. See logfile for details: ‘UnrealBuildTool.txt’
MainFrameActions: Packaging (HTML5): ProcessManager.KillAll: Trying to kill 0 spawned processes.
MainFrameActions: Packaging (HTML5): Program.Main: AutomationTool exiting with ExitCode=5
MainFrameActions: Packaging (HTML5): Domain_ProcessExit
MainFrameActions: Packaging (HTML5): ProcessManager.KillAll: Trying to kill 0 spawned processes.
MainFrameActions: Packaging (HTML5): copying UAT log files…
MainFrameActions: Packaging (HTML5): RunUAT.bat ERROR: AutomationTool was unable to run successfully.
MainFrameActions: Packaging (HTML5): BUILD FAILED

[anonymous_user_a08c0bf2]

Hey Kosmo,

Could you please try running “python embuilder.py build struct_info” in the command line? Please let me know of the outcome.

Thank you!

[anonymous_user_4c9fba8e]

Hey again ,

unfortunately “python embuilder.py build struct_info” gives “python: can’t open file ‘embuilder.py’: [Errno 2] No such file or directory”

Googling it gave me no results, but I’ve found a topic where [Ankitkk] STAFF suggested using Emscripten 1.25, which actually worked perfectly! So it looks like Emscripten 1.29+ is a no no, at least on my machine (Intel Core i5, Windows 8.1 x64, 8GB RAM).
Next I’ve tested a clean C++ project on Chrome, Firefox and .

Chrome - no errors - some FPS glitching, better in fullscreen
Firefox - no errors - perfect FPS, premium class compared to Chrome
:

Error: uncaught exception: abort() at jsStackTrace@http://localhost/HTML5/HTML5Test.js:1:18192
stackTrace@http://localhost/HTML5/HTML5Test.js:1:18375
abort@http://localhost/HTML5/HTML5Test.js:242:81291
assert@http://localhost/HTML5/HTML5Test.js:1:8281
@http://localhost/HTML5/HTML5Test.js:1:19945

If this abort() is unexpected, build with -s ASSERTIONS=1 which can give more information.

// Edit: Mouse input didn’t work, because I’ve packaged for mobile input my bad. Though, hidden cursor input acts weird, tiny shifts aren’t registered properly.
// Edit2: Ok hidden cursor input works as should in fullscreen mode. Best result settings:
Target Hardware: Mobile/Tablet, Scalable 3D or 2D
Input: Mouse for Touch: false (only then mouse input works on Mobile target… weird)

Desktop / Console + Maximum Quality = not really pretty, like resolution was lower and was scaled up
Desktop / Console + Scalable 3D or 2D = black screen
Mobile/Tablet + Maximum Quality = black screen

[anonymous_user_a08c0bf2]

Hey Kosmo,

There is currently a report in for Emscripten 1.30, we’re hoping it’ll be corrected in 4.9 however, I can’t guarantee that. Were you able to downgrade your Emscripten to 1.25 and get your project working properly?

Thanks!

[anonymous_user_4c9fba8e]

Yes, as I’ve already mentioned, downgrading to 1.25 was what let me finaly compile my project. I was also having problems with cooking… which resolved automagically after packaging for Windows 64bit… like packaging for HTML5 actually lacked some files that are created during packaging for Windows 64bit

[anonymous_user_a08c0bf2]

Hey,

I wanted to verify that everything is good to go now?

[anonymous_user_4c9fba8e]

Hey, yes for now it is all working, thank you for the help I will be testing more and more complex features in the coming days so we will see what will come up.

[anonymous_user_a08c0bf2]

You’re very welcome Kosmo, please let us know if you have any further questions. We’re on AnswerHub too.

[anonymous_user_4c9fba8e]

So a thing came up. I’m loading a .json file through HTTP request and parsing its content. One of its fields is a string containing non-ASCII characters. Everything works fine in Editor, but in HTML5 a memory error occurrs when I try to log the string value or set it to a TextRender actor to display it in the scene. I’m keeping the non-ASCII characters value in an FString variable, there are no errors until I actually want to output it somehow… Do I need to set some encoding somehow, or store such characters in some other way?