make all fails due to tensorflow

[wlbocr]

I am trying to install OCR-D Software. The installation fails during the "make all"-step because tensorflow is not compatible with python 3.8. :
ERROR: Could not find a version that satisfies the requirement tensorflow-gpu==1.15.* (from ocrd-cor-asv-ann==0.1.6) (from versions: 2.2.0rc1, 2.2.0rc2, 2.2.0rc3, 2.2.0rc4, 2.2.0, 2.2.1, 2.3.0rc0, 2.3.0rc1, 2.3.0rc2, 2.3.0, 2.3.1, 2.4.0rc0, 2.4.0rc1)
ERROR: No matching distribution found for tensorflow-gpu==1.15.* (from ocrd-cor-asv-ann==0.1.6)

Python version will be updated on the step before "sudo make deps-ubuntu":
python3 is already the newest version (3.8.2-0ubuntu2).

How to fix this problem?

[kba]

tensorflow does not provide packages of tensorflow < 2.2 for Python 3.8. That is why we're recommending deployment on Ubuntu 18.04 because Python is still at 3.7 for which packages are available of all relevant tensorflow versions.

So, I recommend either downgrading Python, downgrading Ubuntu from 20.04 to 18.04 or using the docker deployment option.

See the wiki article on Ubuntu installation for a recipe to downgrade Python.

[wlbocr]

OCD-D installation via Docker gives the following error message:

sudo snap install docker
docker pull ocrd/all:maximum
Got permission denied while trying to connect to the Docker daemon socket at uni
x:///var/run/docker.sock: Post http://%2Fvar%2Frun%2Fdocker.sock/v1.40/images/cr eate?fromImage=ocrd%2Fall&tag=maximum: dial unix /var/run/docker.sock: connect:
permission denied

[kba]

OCD-D installation via Docker gives the following error message:

sudo snap install docker
docker pull ocrd/all:maximum
Got permission denied while trying to connect to the Docker daemon socket at uni
x:///var/run/docker.sock: Post http://%2Fvar%2Frun%2Fdocker.sock/v1.40/images/cr eate?fromImage=ocrd%2Fall&tag=maximum: dial unix /var/run/docker.sock: connect:
permission denied

Are you in the docker group? sudo usermod -a -G docker YOURUSERNAME, log out/log in and try again? If you need more support debugging, feel free to drop by the chat.

[kba]

Did you manage to solve this @wlbocr?

[wlbocr]

The docker installation actually worked so far. The installation is not yet complete. On the last step I got the massage:
open /var/snap/docker/common/var-lib-docker/tmp/GetImageBlob642383193: no such file or directory

[bertsky]

This looks like the snap method did not install Docker properly. I have no experience with snap. The recommended way for Docker installation on Ubuntu is via 3rd-party apt source.

[kba]

The docker installation actually worked so far. The installation is not yet complete. On the last step I got the massage:
open /var/snap/docker/common/var-lib-docker/tmp/GetImageBlob642383193: no such file or directory

Does the problem persist after a reboot or sudo systemctl restart docker?

[Aysoltan]

I tryed different ways to solve the problem and only one helped: the new installation of Ubuntu Bionic 18.04 (LTS) -> manualy installation ocr-d

[stweil]

@Aysoltan, a manual installation of Python 3.7 would also help. You can then build OCR-D using Python 3.7 for which the required versions of Tensorflow exist.

[bertsky]

Duplicate of #235 (but discussions are complementary so far).