Deploying with `tfjs-node` and missing `libtensorflow.so` file

[Lizz Thabet]

My team and I are working on deploying a web app that uses a TFJS model powered by Node, rather than WebGL. We've successfully run the app on our local machines, but have encountered an issue running tfjs-node through Heroku (Ubuntu 16.04) and Docker (with an Alpine image). The same error shows up in both setups.

When requiring tfjs-node, the backend registration fails looking for libtensorflow.so. I've double-checked that the file libtensorflow.so is present in the directory that tfjs-node/scripts/download-libtensorflow.sh is looking for it in. This is the setup that we've been running on our local machines without a problem. 

Here's the error from Heroku bash:

~ $ node

> const tf = require('@tensorflow/tfjs')

undefined

> require('@tensorflow/tfjs-node') 

Registration of backend tensorflow failed

Error: libtensorflow.so: cannot open shared object file: No such file or directory

    at Object.Module._extensions..node (module.js:681:18)

    at Module.load (module.js:565:32)

    at tryModuleLoad (module.js:505:12)

    at Function.Module._load (module.js:497:3)

    at Module.require (module.js:596:17)

    at require (internal/module.js:11:18)

    at bindings (/app/node_modules/bindings/bindings.js:81:44)

    at /app/node_modules/@tensorflow/tfjs-node/dist/index.js:8:60

    at Environment.registerBackend (/app/node_modules/@tensorflow/tfjs-core/dist/environment.js:296:27)

    at Object.<anonymous> (/app/node_modules/@tensorflow/tfjs-node/dist/index.js:7:9)

{ version: '0.1.8' }

You can also see the source code here: https://github.com/mime-dream-team/mime-frontend/blob/master/server/model/index.js.

Has anyone had success deploying a model running on tfjs-node, or can give us guidance on what setup might be missing?

[Nick Kreeger]

Hi Liza,

Can you try with 0.1.9? We just fixed and issue downloading that lib over curl.

Thanks,

Nick

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[Lizz Thabet]

Thanks for the suggestion. I just updated the version, but am still seeing the same error on Heroku.

[Nick Kreeger]

Hi Lizz,

Thanks for testing that - I filed https://github.com/tensorflow/tfjs/issues/517 and I'll take a look this week.

Thanks,

Nick

To view this discussion on the web visit https://groups.google.com/a/tensorflow.org/d/msgid/tfjs/078f4106-33d6-4094-aed3-52a5a55c2e8c%40tensorflow.org.