What am I doing wrong? ebook2audiobook.cmd... leads to - [STOP] Docker image 'ebook2audiobook' already exists. Aborting build.

[Cyber-Zaphod]

What am I doing wrong? I follow this guide and the ebook2Audiobook already worked under CPU functionality, but I would like to get
it to work under GPU. What else do I have to consider? I followed the points under "Docker" on this page

https://github.com/DrewThomasson/ebook2audiobook?tab=readme-ov-file#docker and this one,
https://github.com/DrewThomasson/ebook2audiobook/wiki/GPU-ISSUES

but it ends up with the error: G:_AudiobookAI\ebook2audiobook>call ebook2audiobook.cmd --script_mode build_docker

[STOP] Docker image 'ebook2audiobook' already exists. Aborting build. Delete it using: docker rmi ebook2audiobook =============== ebook2audiobook is not correctly installed.

The Docker command rmi only leads to the fact that there is no image, it's a little strange, maybe i am stupid, but maybe someone has a tip as to what could be the reason. Thanks in advance.

G:_AudiobookAI\ebook2audiobook>set DEVICE_TAG=cu121
G:_AudiobookAI\ebook2audiobook>call ebook2audiobook.cmd --script_mode build_docker
[STOP] Docker image 'ebook2audiobook' already exists. Aborting build.
Delete it using: docker rmi ebook2audiobook
=============== ebook2audiobook is not correctly installed. But there is no Image

[ROBERT-MCDOWELL]

first of all you don't need to use "set" and "call" in a batch terminal. To force the build with a defined GPU you just need to do it on one command line like:

set DEVICE_TAG=cu121 && ebook2audiobook.cmd --script_mode build_docker

But before to run it, follow the instructions below:

1. delete the real image name you created before
   docker rmi ebook2audiobook:cpu

2. do a git pull , git clone or download the v25.12.27

3. start a new build
   ebookaudiobook.cmd --script_mode build_docker
   if successful and you can see your GPU is detected correctly, so run the docker as it's mentionned in the README or ebook2audiobook.cmd --help
   if your GPU is stil not detected correctly, comment to the open issue on this matter here #### REPORT HERE FOR ALL CUDA/XPU/ROCM/MPS/JETSON ISSUES #### (PLEASE READ BEFORE TO COMMENT) #1240
   and provide all info requested for debugging.