Installation problems due to issue with Numpy dependency

[J535D165]

Several users encounter issues with installing ASReview due to an issue with the numpy dependency. Numpy is an important dependency for ASReview as well as for thousands of other software packages. Especially Windows users are facing issues.

Potential solutions to circumvent the problems with numpy:

Solution 1 - Downgrade Numpy

1. pip install --upgrade numpy!=1.19.4
2. pip install asreview

Solution 2 - Use Python 3.8

1. Uninstall Python 3.9
2. Install Python 3.8
3. pip install numpy!=1.19.4
4. pip install asreview

* pip install commandos should be inserted in the Command Prompt (cmd.exe) on Windows.

Background info

The issue with Numpy is caused by an issue in the latest update of Windows. Background information on the issue and solutions can be found here numpy/numpy#16744.

[rikvanberkel]

For me solution 1 worked, thanks

[stefanodallapalma]

Hi, I would add a third solution: use a virtual environment.

1. virtualenv venv
2. source venv/bin/activate
3. asreview lab