InvertibleNetwork error (Input 0 of layer "dense" is incompatible with the layer) about bayesflow

[LarsKue]

Hi @lucasgautheron, sorry for the late reply. I cannot reproduce the issue in a fresh environment. Did you follow the install instructions correctly? What version of Python are you using?

It also looks like the warnings in your output are hinting at another (possibly unrelated) issue:

Failed to import TF-Keras.
Some dependencies failed to load.
No module named 'tf_keras'

Does running pip install tf-keras=2.16 fix the issue? If not, can you please set up a fresh environment using

conda create bf-test python=3.11
conda activate bf-test

and then install the following dependency versions:

pip install bayesflow==1.1.6 tensorflow==2.15.1 tensorflow-probability==0.23.0

If all else fails, here is an environment-lock.yaml file that runs for me without problems:

name: bf-test
channels:
  - conda-forge
dependencies:
  - _libgcc_mutex=0.1=conda_forge
  - _openmp_mutex=4.5=2_gnu
  - bzip2=1.0.8=h4bc722e_7
  - ca-certificates=2024.7.4=hbcca054_0
  - ld_impl_linux-64=2.40=hf3520f5_7
  - libexpat=2.6.2=h59595ed_0
  - libffi=3.4.2=h7f98852_5
  - libgcc-ng=14.1.0=h77fa898_0
  - libgomp=14.1.0=h77fa898_0
  - libnsl=2.0.1=hd590300_0
  - libsqlite=3.46.0=hde9e2c9_0
  - libuuid=2.38.1=h0b41bf4_0
  - libxcrypt=4.4.36=hd590300_1
  - libzlib=1.3.1=h4ab18f5_1
  - ncurses=6.5=h59595ed_0
  - openssl=3.3.1=h4bc722e_2
  - pip=24.2=pyhd8ed1ab_0
  - python=3.11.9=hb806964_0_cpython
  - readline=8.2=h8228510_1
  - setuptools=72.1.0=pyhd8ed1ab_0
  - tk=8.6.13=noxft_h4845f30_101
  - wheel=0.44.0=pyhd8ed1ab_0
  - xz=5.2.6=h166bdaf_0
  - pip:
      - absl-py==2.1.0
      - aesara==2.9.3
      - astunparse==1.6.3
      - bayesflow==1.1.6
      - cachetools==5.4.0
      - certifi==2024.7.4
      - charset-normalizer==3.3.2
      - cloudpickle==3.0.0
      - cons==0.4.6
      - contourpy==1.2.1
      - cycler==0.12.1
      - decorator==5.1.1
      - dm-tree==0.1.8
      - etuples==0.3.9
      - filelock==3.15.4
      - flatbuffers==24.3.25
      - fonttools==4.53.1
      - gast==0.6.0
      - google-auth==2.33.0
      - google-auth-oauthlib==1.2.1
      - google-pasta==0.2.0
      - grpcio==1.65.4
      - h5py==3.11.0
      - idna==3.7
      - joblib==1.4.2
      - keras==2.15.0
      - kiwisolver==1.4.5
      - libclang==18.1.1
      - logical-unification==0.4.6
      - markdown==3.6
      - markupsafe==2.1.5
      - matplotlib==3.9.1.post1
      - minikanren==1.0.3
      - ml-dtypes==0.3.2
      - multipledispatch==1.0.0
      - numpy==1.26.4
      - oauthlib==3.2.2
      - opt-einsum==3.3.0
      - packaging==24.1
      - pandas==2.2.2
      - pillow==10.4.0
      - protobuf==4.25.4
      - pyasn1==0.6.0
      - pyasn1-modules==0.4.0
      - pyparsing==3.1.2
      - python-dateutil==2.9.0.post0
      - pytz==2024.1
      - requests==2.32.3
      - requests-oauthlib==2.0.0
      - rsa==4.9
      - scikit-learn==1.5.1
      - scipy==1.14.0
      - seaborn==0.13.2
      - six==1.16.0
      - tensorboard==2.15.2
      - tensorboard-data-server==0.7.2
      - tensorflow==2.15.1
      - tensorflow-estimator==2.15.0
      - tensorflow-io-gcs-filesystem==0.37.1
      - tensorflow-probability==0.23.0
      - termcolor==2.4.0
      - threadpoolctl==3.5.0
      - toolz==0.12.1
      - tqdm==4.66.5
      - typing-extensions==4.12.2
      - tzdata==2024.1
      - urllib3==2.2.2
      - werkzeug==3.0.3
      - wrapt==1.14.1