CdpVersionFinder findNearestMatch WARNING: Unable to find an exact match for CDP version 100, so returning the closest version found: 99 with Selenium

Question

I created a bunch of scripts which worked fine in December 2021. I'm running them now and a few of them execute and pass but suddenly the execution stops and it shows the scripts are failed and skipped as follows:

test_Footer__BrokenImage is PASSED

Starting ChromeDriver 100.0.4896.60 (6a5d10861ce8de5fce22564658033b43cb7de047-refs/branch-heads/4896@{#875}) on port 62727
Only local connections are allowed.
Please see https://chromedriver.chromium.org/security-considerations for suggestions on keeping ChromeDriver safe.
ChromeDriver was started successfully.
Apr 19, 2022 12:03:45 PM org.openqa.selenium.remote.ProtocolHandshake createSession
INFO: Detected dialect: W3C
Apr 19, 2022 12:03:45 PM org.openqa.selenium.devtools.CdpVersionFinder findNearestMatch
WARNING: Unable to find an exact match for CDP version 100, so returning the closest version found: 99
Apr 19, 2022 12:03:45 PM org.openqa.selenium.devtools.CdpVersionFinder findNearestMatch
INFO: Found CDP implementation for version 100 of 99
test__BrokenImage is FAILED

Maven dependency:

<dependency>
    <groupId>org.seleniumhq.selenium</groupId>
    <artifactId>selenium-java</artifactId>
    <version>4.1.3</version>
</dependency>

My chrome version is 100.0.4896.127 Chrome driver version is 100.0.4896.60

Appreciate if anyone could help.

Answer 1

This error message...

Starting ChromeDriver 100.0.4896.60 (6a5d10861ce8de5fce22564658033b43cb7de047-refs/branch-heads/4896@{#875}) on port 62727 
. 
Apr 19, 2022 12:03:45 PM org.openqa.selenium.devtools.CdpVersionFinder findNearestMatch WARNING: Unable to find an exact match for CDP version 100, so returning the closest version found: 99 
Apr 19, 2022 12:03:45 PM org.openqa.selenium.devtools.CdpVersionFinder findNearestMatch INFO: Found CDP implementation for version 100 of 99

...implies that the ChromeDriver was unable to initiate/spawn a new Browsing Context i.e. google-chrome session.

---

Deep Dive

Your main issue is the incompatibility between the version of the binaries you are using as follows:

• You have downloaded and used chromedriver=100.0 which got initiated successfully.
• But your are still using chrome=99.0
• Release Notes of ChromeDriver v99.0 clearly mentions the following :

Supports Chrome version 99

Hence, instead of CDP implementation for version 100, CDP implementation for version 99 is found. So there is a clear mismatch between chromedriver=91.0 and the chrome=96.0.4664.45

---

Solution

Ensure that:

• Chrome Browser is updated to current chrome=100.0 (as per chromedriver=100.0.4896.60 release notes).

Answer 2

The problem is with the current version of chrome and chrome driver. I used chrome and chromedriver version 95 and it runs well.