Problems with my Native C++ Addon in Electron

[Vicent Vidal]

Recently I developed my first native C++ Addon for node that works fine with my node project (node version 10.15.0)

The Addon has been built using XCode, which project has been generating using CMake.

I´m having the following error when I use the very same native C++  addon from my Electron app.

dyld: lazy symbol binding failed: Symbol not found: __ZN2v816FunctionTemplate3NewEPNS_7IsolateEPFvRKNS_20FunctionCallbackInfoINS_5ValueEEEENS_5LocalIS4_EENSA_INS_9SignatureEEEiNS_19ConstructorBehaviorENS_14SideEffectTypeE

  Referenced from: /Users/vicentvidal/Documents/Desarrollo/DASNet2/dasaudio/build/DASNetAddon.node

  Expected in: flat namespace

dyld: Symbol not found: __ZN2v816FunctionTemplate3NewEPNS_7IsolateEPFvRKNS_20FunctionCallbackInfoINS_5ValueEEEENS_5LocalIS4_EENSA_INS_9SignatureEEEiNS_19ConstructorBehaviorENS_14SideEffectTypeE

  Referenced from: /Users/vicentvidal/Documents/Desarrollo/DASNet2/dasaudio/build/DASNetAddon.node

  Expected in: flat namespace

As I can see the problem appears just when I call from my Electron App

const addon = require('bindings')('DASNetAddon');

 

which call the following C++ code

static NAN_MODULE_INIT(Init) {

v8::Local<v8::FunctionTemplate> tpl = Nan::New<v8::FunctionTemplate>(New);

tpl->SetClassName(Nan::New("StreamingWorker").ToLocalChecked());

tpl->InstanceTemplate()->SetInternalFieldCount(2);

        SetPrototypeMethod(tpl, "sendToAddon", sendToAddon);

        

constructor().Reset(Nan::GetFunction(tpl).ToLocalChecked());

Nan::Set(target, Nan::New("StreamingWorker").ToLocalChecked(),

Nan::GetFunction(tpl).ToLocalChecked());

}

My Electron version is 3.0.10

My Nan version 2.12.1

My bindings version 1.3.1

Does anybody has any suggestion?

Thank you in advance

[Mikkel Wilson]

I've had a similar problem with C++ addons. In one instance I had to change libraries ('iltorb' compression library) and in the other I had to use emscripten to transpile the C++ code into javascript so the V8 engine could use directly. It doesn't feel like a solution as much as a workaround, but it does work.

Mikkel

Oblivious.io

[Christopher Jones]

On Thursday, January 10, 2019 at 2:48:04 AM UTC+11, Vicent Vidal wrote:

Recently I developed my first native C++ Addon for node that works fine with my node project (node version 10.15.0)

The Addon has been built using XCode, which project has been generating using CMake.

I´m having the following error when I use the very same native C++  addon from my Electron app.

dyld: lazy symbol binding failed: Symbol not found: __ZN2v816FunctionTemplate3NewEPNS_7IsolateEPFvRKNS_20FunctionCallbackInfoINS_5ValueEEEENS_5LocalIS4_EENSA_INS_9SignatureEEEiNS_19ConstructorBehaviorENS_14SideEffectTypeE

  Referenced from: /Users/vicentvidal/Documents/Desarrollo/DASNet2/dasaudio/build/DASNetAddon.node

  Expected in: flat namespace

dyld: Symbol not found: __ZN2v816FunctionTemplate3NewEPNS_7IsolateEPFvRKNS_20FunctionCallbackInfoINS_5ValueEEEENS_5LocalIS4_EENSA_INS_9SignatureEEEiNS_19ConstructorBehaviorENS_14SideEffectTypeE

  Referenced from: /Users/vicentvidal/Documents/Desarrollo/DASNet2/dasaudio/build/DASNetAddon.node

  Expected in: flat namespace

 

Have you tried compiling from source in Electron, i.e. using its version of V8?

We've seen users of our add-on face the same problem.  There is one user solution at https://github.com/n-riesco/oracledb-electron-builder that may give you ideas.