nupic for htmengine

[scaviator]

Hello,

I'm trying to install htmengine with nupic 1.0.6; however, the htmengine installer errors out and complains that it can't find a compatible version of nupic. According to htmengine's requirement file, it requires nupic 0.3.4; however, that is extremely old. I tried installing nupic 0.3.4; however, it error out saying that it couldn't find a compatible version of nupic.bindings.

Any guidance on this would be greatly appreciated. Thx.

[Matthew Taylor]

Hi. I'm going to close this issue because it is an htm engine issue, not a nupic one. I'll open a ticket there if one does not already exist and cite this ticket.

[Matthew Taylor]

So there is no issue tracker there because it is in maintenance mode. We have no current plans to upgrade HTM Engine to use a more recent NuPIC version. You or someone in the HTM community would have to do the work to upgrade to a newer version. There are some instructions on upgrading on HTM Forum. Sorry I'm not more help, but we have stopped working on applications and are completely focused on sensory-motor research with HTM and grid cells for object recognition.

[scaviator]

Thanks for the feedback. I'm happy to look into upgrading the htm engine to use a more recent NuPIC. You references the HTM Forum. Is there something specific I should look for? I'm not very familiar with how the HTM engine was built. Do I just recompile it with a newer NuPIC? I'm just trying to get a sense of how involved it is to upgrade the htmengine. If it's too involved, I may just take a different route. Thx.

[Matthew Taylor]

The link I gave above as a search for the breaking changes. The main thinks you'll have to change in HTM Engine should be mostly encompassed in this post: https://discourse.numenta.org/t/warning-0-7-0-breaking-changes/2200

[scaviator]

Thanks for the pointers. I updated everything noted in your post and was able to install htmengine with nupic 1.0.6.dev0. However, when I check my supervisor, one of the services didn't start.

htmengine:metric_storer

Looking at the error, it looks like there is an issue with fieldmeta. According to one of your post on Dec '17, this is a known issue:

https://discourse.numenta.org/t/htmengine-skeleton-app/3151

Do you know if there is a way to fix this issue?

fieldmeta
ImportError: cannot import name fieldmeta
Traceback (most recent call last):
File "/usr/lib/python2.7/runpy.py", line 174, in _run_module_as_main
"main", fname, loader, pkg_name)
File "/usr/lib/python2.7/runpy.py", line 72, in _run_code
exec code in run_globals
File "/home/afang/.local/lib/python2.7/site-packages/htmengine/runtime/metric_storer.py", line 42, in
from htmengine.adapters.datasource import createCustomDatasourceAdapter
File "/home/afang/.local/lib/python2.7/site-packages/htmengine/adapters/datasource/init.py", line 22, in
import htmengine.adapters.datasource.custom
File "/home/afang/.local/lib/python2.7/site-packages/htmengine/adapters/datasource/custom/init.py", line 37, in
from htmengine.runtime import scalar_metric_utils
File "/home/afang/.local/lib/python2.7/site-packages/htmengine/runtime/scalar_metric_utils.py", line 38, in
from nupic.data import fieldmeta
ImportError: cannot import name fieldmeta

[Matthew Taylor]

Here is a list of the major breaking changes between you'll need to review to make NuPIC 1+ work with HTM Engine: https://discourse.numenta.org/t/warning-0-7-0-breaking-changes/2200

[scaviator]

Thanks. I went through the changes noted in post. Everything seems to be fine except for the following import.

The system can't seem to import the following:

from nupic.data import fieldmeta

Does fieldmeta exist in nupic.data for nupic version 1+

[Matthew Taylor]

try field_meta

[scaviator]

Thanks! The field_meta did the trick. I got it working htmegine working with nupic 1.0.6 now.