Error "selenium.common.exceptions.WebDriverException" although app works fine locally

[mathcatsand]

If you use Selenium, you have to make sure you have all the non-Python dependencies taken care of. Have you configured your packages.txt correctly to install the needed binaries?

Here’s an example within another thread discussing Selenium:

Selenium web scraping on streamlit cloud

Here’s a minimal example of running Selenium on Streamlit Cloud: import streamlit as st import os, sys @st.experimental_singleton def installff(): os.system('sbase install geckodriver') os.system('ln -s /home/appuser/venv/lib/python3.7/site-packages/seleniumbase/drivers/geckodriver /home/appuser/venv/bin/geckodriver') _ = installff() from selenium import webdriver from selenium.webdriver import FirefoxOptions opts = FirefoxOptions() opts.add_argument("--headless") browser = webdriver.Fire…