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Your Selenium tests fail in CI with "SessionNotCreatedException" related to Chrome version mismatch. What is the best fix?

medium📝 Troubleshoot Q7 of 15
Selenium Python - CI/CD Integration
Your Selenium tests fail in CI with "SessionNotCreatedException" related to Chrome version mismatch. What is the best fix?
ADisable headless mode
BUse Firefox webdriver instead
CUpdate chromedriver to match the installed Chrome browser version
DRestart the CI server
Step-by-Step Solution
Solution:

  1. Step 1: Understand SessionNotCreatedException cause

    This error happens when chromedriver version does not match Chrome browser version.

  2. Step 2: Fix by updating chromedriver

    Updating chromedriver to the correct version resolves the mismatch and allows sessions.

  3. Final Answer:

    Update chromedriver to match the installed Chrome browser version -> Option C

  4. Quick Check:

    Fix version mismatch = B [OK]
Quick Trick: Match chromedriver version with Chrome browser version [OK]
Common Mistakes:
  • Disabling headless mode won't fix version mismatch
  • Switching browsers unnecessarily

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