Detached from the target, websocket_closed, cannot read property ref of undefined (NM[0] is undefined)

Doing node-debug src/app.js

The immediate feedback from the terminal is :

Node Inspector v0.12.8
Visit http://127.0.0.1:8080/?port=5858 to start debugging.
Debugging src/app.js

Debugger listening on [::]:5858

After chrome automatically launches and tries to display the page, the chrome windows show this error message:

“Detached from the target. Remote debugging has been terminated with reason: websocket_closed. Please re-attach to the new target.”

And the console shows this error:

/usr/local/lib/node_modules/node-inspector/lib/InjectorClient.js:111
      cb(error, NM[0].ref);
                     ^

TypeError: Cannot read property 'ref' of undefined
    at InjectorClient.<anonymous> (/usr/local/lib/node_modules/node-inspector/lib/InjectorClient.js:111:22)
    at /usr/local/lib/node_modules/node-inspector/lib/DebuggerClient.js:121:7
    at Object.create.processResponse.value (/usr/local/lib/node_modules/node-inspector/lib/callback.js:23:20)
    at Debugger._processResponse (/usr/local/lib/node_modules/node-inspector/lib/debugger.js:95:21)
    at Protocol.execute (_debugger.js:121:14)
    at emitOne (events.js:96:13)
    at Socket.emit (events.js:188:7)
    at readableAddChunk (_stream_readable.js:177:18)
    at Socket.Readable.push (_stream_readable.js:135:10)
    at TCP.onread (net.js:542:20)

I’ve searched everywhere for a solution to this problem and haven’t found one. I hope you can be of assistance!

[asi-jmasson]

Same issue with node v6.5.0 can be solved like this :

Edit …\node_modules\node-inspector\lib\InjectorClient.js file at line 111 if(NM.length > 0) cb(error, NM[0].ref);

It works

[dacuotecuo]

my problem can also be solved like this :

Edit …\node_modules\node-inspector\lib\InjectorClient.js file at line 111 if(NM.length > 0) cb(error, NM[0].ref);

It works well!!!