[BUG] Installation issue

[xfanak]

Dear dp developers,

I'm trying to install the python interface of deepmd-kit only. I noted that someone had the similar issue: #557, and I thought it could be the tensorflow's bug. But I couldn't solve it even if I tried the solutions given here: tensorflow/text#385

I created an empty conda environment first, and set the python version to be 3.8.
Then, I installed tensorflow-cpu (2.5.0) and deepmd-kit 1.3.3 using pip command: pip install tensorflow-cpu/deepmd-kit .
But the dp can not run properly:

The problem was solved when I switched to deepmd-kit 1.3.4 using
'pip install git+https://github.com/deepmodeling/deepmd-kit', instead of simply 'pip install deepmd-kit'.
Update the deepmd-kit wheel may prevent similar problems in the future.

Thanks.

[njzjz]

This wheel was built against TensorFlow 2.4, so you will se incompatibility when you are using TensorFlow 2.5.
Pypi does not allow updating files so we cannot help.

[njzjz]

I am considering to add a message before loading library, so one can know what happened and what to do.

[xfanak]

Thanks for the comments. I did more tests, dp1.3.3 is compatible with tf 2.4 only, but dp 1.3.4 works fine with tf 2.3, 2.4, and 2.5.

[njzjz]

When you pip install git+https://github.com/deepmodeling/deepmd-kit, you are actually building from the source but not the wheel. So the ABI will be consistent with the runtime. You can get the same result if you executing pip install deepmd-kit --no-binary deepmd-kit.