Posenet model that ml5 uses does not exist anymore.

[Sblob1]

Hi. I am getting these errors with posenet in ml5's latest library:

Failed to load resource: the server responded with a status of 404 ()
https://storage.googleapis.com/tfjs-models/weights/posenet/mobilenet_v1_075/manifest.json
Is this because of the upgrade to posenet 2.0 ?

Apparently this model does not exist anymore?

Also get this error, perhaps related?

Uncaught SyntaxError: Unexpected token < in JSON at position 0
at JSON.parse ()
at XMLHttpRequest.r.onload (posenet.esm.js:2)

It seemed to be working earlier in the day, but the google github posenet model was updated just a few hours ago, and now not ml5 posenet is not working.

The ml5 examples on this page also have the same error with models not loading now too:
https://ml5js.org/reference/api-PoseNet/

Any help with this would be great!

Originally posted by @Sblob1 in #510 (comment)

[joeyklee]

@Sblob1 oh! Yikes, thanks so much for flagging this. We will look into this asap and circle back around when we've got news and a solution.

Thank you!

[joeyklee]

Tagging these other issues. It's definitely time to start hosting models on our own servers I think!

• Where is MobileNet Model?? #278
• Allow for offline ml5.js & allow for all models to be served locally  #478

[oveddan]

This has just been fixed...it was an issue with the hosted models moving but they have been moved back to the proper url.

[Sblob1]

That's great! Thanks for letting me know, and thanks for all the great work on ML5 too 🙂

[joeyklee]

@oveddan - Thanks so much for the update! I saw your repo here: https://github.com/oveddan/posenet-for-installations - should we do something similar for all the ml5 model dependencies? As noted in the comment above, we've been meaning to support ml5 to run offline and it seems like you've put a lot of nice work and thoughts into how this might look like! I'm happy to help/support/fork and build off this too.

[joeyklee]

@Sblob1 - I'll close this issue now that this is resolved. Thanks again for noting this!

[joeyklee]

@all-contributors please add @Sblob1 for bug

[allcontributors]

@joeyklee

I've put up a pull request to add @Sblob1! 🎉

[oveddan]

@joeyklee I think letting people load the models offline totally makes sense and would be super helpful!

That being said I don't think it makes sense for us to host the models ourselves. This was just a one time issue, and also hosting things on a cdn costs money, so we may as well leave them on the google servers for people to download, and also with their cdn the users download the models from the node closest to them.

The way posenet for installations does it is it first downloads all possible models to local file system, then serves them via the static bundle. I'm working on upgrading posenet-for-installations to download the v2 models to the local file system, so we can look at that code when it's done. For ml5 to do this it would require ml5 to either serve the files through a local http server, or through the bundle which is something we wouldn't want to do as it would significantly increase the size.

@nsthorat mentioned earlier the ability to call save - which saves the model to local storage so that it can be retrieved offline. Adding this to ml5 posenet would be great for many people. However, this wouldn't work with posenet 1.0 because that uses a legacy model format. With posenet 2.0 we could support something like this. I think this way would be the cleanest to implement and document. So we could add this as part of the upgrade to ml5 using posenet 2.0

[oveddan]

Also posenet 2.0 supports loading a model from a custom url. So one thing we could do is provide a separate github repo/bundle that downloads the posenet models to the local file system and serves them off of a basic http server. Then with ml5 posenet the user could pass the url pointing to the local file server.

[joeyklee]

@oveddan - This is great feedback. Maybe a good balance then is to make it clear how people can do this in the case they would like to load models offline.

• +1 to providing a separate github repo/bumdle that downloads the models so they can point to a local server. Maybe we can change ml5-models to be a repo with a few scripts that download the
  models locally and serve them up like:

download:

npm run download-model posenet
npm run download-model faceApi

then to serve:

npm run start

then the urls could just be:

https://localhost:3000/models/posenet
https://localhost:3000/models/faceApi

[oveddan]

Yes something like this would be great!

[oveddan]

After this discussion - for posenet-for-installations I'm going to move all the downloading and serving functionality to a separate repo. We can then import the downloading code into the ml5-models library or just copy and paste it.

[joeyklee]

@oveddan - Super. This is excellent. Thanks so much. We can try out what works best and roll out the bumps along the way. ✨

[Sblob1]

@all-contributors please add @Sblob1 for bug

Wow, thanks for this super cool honour guys! Happy to be of help :)

[allcontributors]

@Sblob1

I've updated the pull request to add @Sblob1! 🎉

[joeyklee]

@Sblob1 - sure thing! All contributions are welcome and appreciated. We are just waiting for the Continuous Integration tests to pass then we can merge the PR. Thanks again!

[komal1502]

Hi. I am getting these errors with posenet in ml5's latest library:

Failed to load resource: the server responded with a status of 404 () https://storage.googleapis.com/tfjs-models/weights/posenet/mobilenet_v1_075/manifest.json Is this because of the upgrade to posenet 2.0 ?

Apparently this model does not exist anymore?

Also get this error, perhaps related?

Uncaught SyntaxError: Unexpected token < in JSON at position 0 at JSON.parse () at XMLHttpRequest.r.onload (posenet.esm.js:2)

It seemed to be working earlier in the day, but the google github posenet model was updated just a few hours ago, and now not ml5 posenet is not working.

The ml5 examples on this page also have the same error with models not loading now too: https://ml5js.org/reference/api-PoseNet/

Any help with this would be great!

Originally posted by @Sblob1 in #510 (comment)

Did you get the solution to it? as I am too facing the same issue. Would you please help me with it?