Ubuntu 18:04 training setup: Running into error " Could not find a version that satisfies the requirement tensorflow==1.11"

[Heavy02011]

after doing
(donkey2) rainer@neuron:~/dev/21-donkeycar2/donkey2$ pip install -r train_requirements.txt

I get the following error

Obtaining donkeycar from git+git://github.com/autorope/donkeycar@2.6.1#egg=donkeycar (from -r train_requirements.txt (line 1))
  Updating ./src/donkeycar clone (to revision 2.6.1)
Obtaining donkeypart_keras_behavior_cloning from git+git://github.com/autorope/donkeypart_keras_behavior_cloning@0.1.3#egg=donkeypart_keras_behavior_cloning (from -r train_requirements.txt (line 2))
  Updating ./src/donkeypart-keras-behavior-cloning clone (to revision 0.1.3)
Obtaining donkeypart_tub from git+git://github.com/autorope/donkeypart_tub@0.1.1#egg=donkeypart_tub (from -r train_requirements.txt (line 3))
  Updating ./src/donkeypart-tub clone (to revision 0.1.1)
Obtaining donkeypart_common from git+git://github.com/autorope/donkeypart_common@0.1#egg=donkeypart_common (from -r train_requirements.txt (line 4))
  Updating ./src/donkeypart-common clone (to revision 0.1)
Requirement already satisfied: numpy in /home/rainer/.conda/envs/donkey2/lib/python3.7/site-packages (from donkeycar->-r train_requirements.txt (line 1)) (1.15.1)
Requirement already satisfied: pillow in /home/rainer/.conda/envs/donkey2/lib/python3.7/site-packages (from donkeycar->-r train_requirements.txt (line 1)) (5.2.0)
Collecting docopt (from donkeycar->-r train_requirements.txt (line 1))
  Using cached https://files.pythonhosted.org/packages/a2/55/8f8cab2afd404cf578136ef2cc5dfb50baa1761b68c9da1fb1e4eed343c9/docopt-0.6.2.tar.gz
Collecting tornado==4.5.3 (from donkeycar->-r train_requirements.txt (line 1))
  Using cached https://files.pythonhosted.org/packages/e3/7b/e29ab3d51c8df66922fea216e2bddfcb6430fb29620e5165b16a216e0d3c/tornado-4.5.3.tar.gz
Requirement already satisfied: requests in /home/rainer/.conda/envs/donkey2/lib/python3.7/site-packages (from donkeycar->-r train_requirements.txt (line 1)) (2.19.1)
Requirement already satisfied: h5py in /home/rainer/.conda/envs/donkey2/lib/python3.7/site-packages (from donkeycar->-r train_requirements.txt (line 1)) (2.8.0)
Collecting python-socketio (from donkeycar->-r train_requirements.txt (line 1))
  Using cached https://files.pythonhosted.org/packages/40/ab/8217b1e113354dcfede430bccd24bf0faeba49020795a873970b476dbfba/python_socketio-2.1.2-py2.py3-none-any.whl
Requirement already satisfied: flask in /home/rainer/.conda/envs/donkey2/lib/python3.7/site-packages (from donkeycar->-r train_requirements.txt (line 1)) (1.0.2)
Collecting eventlet (from donkeycar->-r train_requirements.txt (line 1))
  Using cached https://files.pythonhosted.org/packages/86/7e/96e1412f96eeb2f2eca9342dcc4d5bc9305880a448b603b0a8e54439b71c/eventlet-0.24.1-py2.py3-none-any.whl
Collecting moviepy (from donkeycar->-r train_requirements.txt (line 1))
  Using cached https://files.pythonhosted.org/packages/1f/af/98b68b047c47d9430cb4c9ac899cf9d969de3936f888072991ea74da93a8/moviepy-0.2.3.5.tar.gz
Requirement already satisfied: pandas in /home/rainer/.conda/envs/donkey2/lib/python3.7/site-packages (from donkeycar->-r train_requirements.txt (line 1)) (0.23.4)
Collecting tensorflow==1.11 (from donkeypart_keras_behavior_cloning->-r train_requirements.txt (line 2))
  Could not find a version that satisfies the requirement tensorflow==1.11 (from donkeypart_keras_behavior_cloning->-r train_requirements.txt (line 2)) (from versions: )
No matching distribution found for tensorflow==1.11 (from donkeypart_keras_behavior_cloning->-r train_requirements.txt (line 2))

Any ideas? Thx!

[Heavy02011]

fixed it, problem was that I created the environment with "python=3" which resulted in installing python 3.7
just created a new environment with python=3.6 which works perfectly.