Node.js native module is not a valid Win32 application error

Question

Trying to make Hello World native module for node.js

Got an Win32 Project in VS 2012 with one file:

#include <node.h>
#include <v8.h>

using namespace v8;

Handle<Value> Method(const Arguments& args) {
  HandleScope scope;
  return scope.Close(String::New("world"));
}

void init(Handle<Object> target) {
  target->Set(String::NewSymbol("hello"),
      FunctionTemplate::New(Method)->GetFunction());
}
NODE_MODULE(hello, init)

That`s compiles to hello.node.
Options:
- Dynamic Library (.dll)
- No Common Language Runtime Support

Use it like:

hello = require './hello'
console.log hello.hello()

It works on local machine (win8 x64, node: 0.8.12)
But on remote server (windows server 2008 x64, node: 0.8.12, iisnode: 0.1.21 x64, iis7) it throws this error:

Application has thrown an uncaught exception and is terminated: Error:
%1 is not a valid Win32 application.

C:\\inetpub\\test\\lib\\server\\hello.node
at Object.Module._extensions..node (module.js:485:11)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Module.require (module.js:362:17)
at require (module.js:378:17)
at Object. (C:\\inetpub\\test\\lib\\server\\index.js:32:9)
at Module._compile (module.js:449:26)
at Object.Module._extensions..js (module.js:467:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)

What I tryed:
Playing with app pool settings (enable win32 apps) does not helped.
Iisnode x86 does not install on x64 os.
Can`t compile to x64 because of error: Error 2 error LNK1112: module machine type 'X86' conflicts with target machine type 'x64' C:\\derby\\hello\\build\\node.lib(node.exe) hello

Does anyone have any suggestions?

Answer 1

I dont know if it's too late, but I found the answer after some trial and error, mainly the problem (in my machine) was that I compiled the nodejs on windows to be able to create the extension using visual C++, and I already had installed the nodejs from the page, if I try to run the test using the default installation (which was added to my PATH by the nodejs installer) then it fails, but if I use the compiled node.exe (the one I compiled to be able to reference the libs in Visual C++) then it works.

In summary, the problem is not with the extension, it's with the nodejs compilation, use the node that you compiled (in order to build the VS solution I assume you did that) and then it should work on the remote machine.

Note: The problem relies on that you're using node.exe compiled in 64bits to run a 32bits dll, that's why it's complaining, if you use node.exe in 32 bits it should work. (at least that solved my problem)

Answer 2

Just had the same problem and even though the architectures of my node and addon were identical, I got similar errors messages. It turns out that you can't rename the node executable. It has to be node.exe , I was trying to test multiple versions at the same time so I had to put them in their own folders. After that it all worked fine.

Answer 3

In my case, the issue was trying to execute an Electron app on Windows that was built (for Windows) using Linux. I solved by building it (for Windows) using Windows.

To build it on windows I used the following commands:

npm install --global-production windows-build-tools
npm install
npm run build:prod && electron-builder build --windows

To execute the last command you need electron-builder , install it if you do not have with

npm install --save-dev electron-builder

Answer 4

Using Electron Forge webpack typescript boilerplate. This is what worked for me:

In webpack.main.config.js add externals: ['sqlite3'] :

module.exports = {
  /**
   * This is the main entry point for your application, it's the first file
   * that runs in the main process.
   */
  entry: './src/electron-entrypoint.ts',
  // Put your normal webpack config below here
  module: {
    rules: require('./webpack.rules'),
  },
  resolve: {
    extensions: ['.js', '.ts', '.jsx', '.tsx', '.css', '.json']
  },
  externals: ['sqlite3']
};

Source

Alternatively -that also worked for me-, you can use better-sqlite3 , as suggested here

Answer 5

Unrelated to your probem: I get the same error ( Error: %1 is not a valid Win32 application ) when trying to execute a script with extension ".node", eg node.exe example.node . Other extensions (.js, .txt, no extension at all) work fine.