Uncaught (in promise) RuntimeError: abort(RuntimeError: abort...)

[Anand Arumugam]

I've been reading through  Embind — Emscripten 2.0.9 documentation and was trying the first example - quick_example.cpp

When I open the html file in the browser (edge chromium) I get the following error:

greeting.js:1365 both async and sync fetching of the wasm failed

abort @ greeting.js:1365

greeting.js:1543 failed to asynchronously prepare wasm: RuntimeError: abort(both async and sync fetching of the wasm failed) at Error

    at jsStackTrace (file:///D:/src/emsdk/embind/greeting.js:1644:19)

    at stackTrace (file:///D:/src/emsdk/embind/greeting.js:1661:16)

    at abort (file:///D:/src/emsdk/embind/greeting.js:1370:44)

    at getBinary (file:///D:/src/emsdk/embind/greeting.js:1468:5)

    at file:///D:/src/emsdk/embind/greeting.js:1489:53

(anonymous) @ greeting.js:1543

greeting.js:1365 RuntimeError: abort(both async and sync fetching of the wasm failed) at Error

    at jsStackTrace (file:///D:/src/emsdk/embind/greeting.js:1644:19)

    at stackTrace (file:///D:/src/emsdk/embind/greeting.js:1661:16)

    at abort (file:///D:/src/emsdk/embind/greeting.js:1370:44)

    at getBinary (file:///D:/src/emsdk/embind/greeting.js:1468:5)

    at file:///D:/src/emsdk/embind/greeting.js:1489:53

abort @ greeting.js:1365

greeting.js:1376 Uncaught (in promise) RuntimeError: abort(RuntimeError: abort(both async and sync fetching of the wasm failed) at Error

    at jsStackTrace (file:///D:/src/emsdk/embind/greeting.js:1644:19)

    at stackTrace (file:///D:/src/emsdk/embind/greeting.js:1661:16)

    at abort (file:///D:/src/emsdk/embind/greeting.js:1370:44)

    at getBinary (file:///D:/src/emsdk/embind/greeting.js:1468:5)

    at file:///D:/src/emsdk/embind/greeting.js:1489:53) at Error

    at jsStackTrace (file:///D:/src/emsdk/embind/greeting.js:1644:19)

    at stackTrace (file:///D:/src/emsdk/embind/greeting.js:1661:16)

    at abort (file:///D:/src/emsdk/embind/greeting.js:1370:44)

    at file:///D:/src/emsdk/embind/greeting.js:1545:7

    at abort (file:///D:/src/emsdk/embind/greeting.js:1376:11)

    at file:///D:/src/emsdk/embind/greeting.js:1545:7

My example file is named greeting.cpp and here's what's in it:

#include <emscripten/bind.h>

using namespace emscripten;

std::wstring greet(const std::wstring& greeting) {

    return std::wstring(L"Hello ") + greeting;

}

float lerp(float a, float b, float t) {

    return (1 - t) * a + t * b;

}

EMSCRIPTEN_BINDINGS(my_module) {

    function("greet", &greet);

    function("lerp", &lerp);

}

The compilation using emcc didn't give any errors. And it produced greeting.js and greeting.wasm. Here's how I compiled the program:

d:\src\emsdk\embind>emcc --bind -o greeting.js greeting.cpp

d:\src\emsdk\embind>dir

 Directory of d:\src\emsdk\embind

12/24/2020  03:15 PM    <DIR>          .

12/24/2020  02:56 PM    <DIR>          ..

12/24/2020  03:17 PM               305 greet.html

12/24/2020  03:15 PM               346 greeting.cpp

12/24/2020  03:15 PM           164,401 greeting.js

12/24/2020  03:15 PM            25,567 greeting.wasm

Not sure what I'm doing wrong here. Any help is much appreciated.

Thanks,

Anand.

[Anand Arumugam]

Found the answer. Looks like I need to be using emrun to open html files and not directly on the browser.

emrun --browser "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" d:\src\emsdk\embind\greet.html

Got it working!

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