# App name DashNLP # Description of bug After pip install using requirements.txt, executing "python app.py" produced error saying Pandas was not available, with error: "ValueError: numpy.ufunc size changed, may indicate binary incompatibility. Expected 216 from C header, got 192 from PyObject" After bit of search, tried "pip install --upgrade numpy" which upgraded to "numpy-1.21.2". Then was able to successfully execute "python app.py" start server and view app in browser. # How to replicate the bug 1) On Windows 10 create virtualEnv by executing "conda create -n venvDashNLP python=3.7.4" (basic env) 2) Excecute "pip install -r requirements.txt" 3) Execute "python app.py" 4) Get error # Other notes