th 274 - Solving Selenium's Unknown Error: Cannot Find Chrome Binary on Mac

Solving Selenium’s Unknown Error: Cannot Find Chrome Binary on Mac

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th?q=Selenium Gives - Solving Selenium's Unknown Error: Cannot Find Chrome Binary on Mac

Selenium is a popular automation testing tool that has gained increased popularity among software testers. This open-source tool allows testers to automate their web applications and perform integration tests on a wide range of browsers. But what happens when Selenium halts with an unknown error message amidst the testing process?

One of the common errors you might encounter when using Selenium on Mac is Cannot find chrome binary. This error occurs when Selenium is unable to locate the Chrome browser binary on your Mac. If you’re stuck with this error, don’t panic! We’ve got you covered.

In this article, we will provide you with the solution to fix “Cannot find chrome binary” error on Mac OS. We’ll take you through the entire process of resolving this issue, from troubleshooting methods to possible causes of the error. By the end of the article, you will be able to solve the problem and continue your testing work with Selenium.

So, sit tight and grab a cup of coffee as we dive into the solution to fix Selenium’s unknown error: Cannot Find Chrome Binary on Mac.

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“Selenium Gives “Selenium.Common.Exceptions.Webdriverexception: Message: Unknown Error: Cannot Find Chrome Binary” On Mac” ~ bbaz


In the world of automation testing, Selenium is one of the most widely used tools. It offers a variety of benefits to testers such as test case automation, cross-browser testing, and much more. Selenium has become so popular that many testing frameworks nowadays have built-in support for it. Despite this, users still encounter various issues while working with Selenium. One common issue is the Unknown Error: Cannot Find Chrome Binary on Mac error.

Understanding the Error

This error message usually appears when Selenium is unable to find the Google Chrome browser binary file on the Mac operating system. It indicates that there is no specified location for where Selenium can find the binary file.

Causes of the Error

There are multiple reasons why this error may occur. One of the most common reasons is the incorrect installation or configuration of Google Chrome. Another reason might be the incompatibility of the versions of Google Chrome and the ChromeDriver.

Comparing Solutions

Solution 1: Update Google Chrome and ChromeDriver

The first solution is to update both Google Chrome and the ChromeDriver to their latest versions. This process is quite simple and can be done by downloading the latest version of Google Chrome from the Google Chrome website and the latest version of ChromeDriver from the ChromeDriver website. However, sometimes even after updating, the problem may persist.

Pros Cons
Simple and easy solution Sometimes, even after updating, the problem may not be resolved

Solution 2: Specify Location of Chrome Binary File

The second solution is to specify the location of the Chrome binary file in your code. This can be done using the executable_path argument when initializing the webdriver for Chrome.

Pros Cons
Provides a direct solution to the problem Requires additional code to be added to the script

Solution 3: Use a Different Browser

The third solution is to simply use a different browser for automation testing purposes such as Firefox, Safari, or Edge. Since this error is limited to only Chrome, switching to a different browser can help overcome the issue.

Pros Cons
Offers an alternative solution to the problem The testing environment may not be the same across different browsers


Selenium offers a wide range of benefits to testers and has become an essential part of the automation testing industry. However, like with any tool, users encounter various issues. One common issue is the Unknown Error: Cannot Find Chrome Binary on Mac error. In this article, we have explored the causes of this error and provided three different solutions along with their respective pros and cons. With the knowledge gained from this article, users can effectively solve this common Selenium error and continue their automation testing with ease.

Thank you for taking the time to read through our article on solving Selenium’s unknown error “Cannot Find Chrome Binary” on Mac. We understand how frustrating it can be when software tools, such as Selenium, do not work as intended. That is why we are committed to providing our readers with helpful tips and solutions that may aid them in their programming endeavors.

If you have experienced the error “Cannot Find Chrome Binary” while working with Selenium on a Mac, we hope that the solutions we have provided in this article have been of assistance. As we have noted, the root cause of the issue often lies in the ChromeDriver executable path, which can be resolved through modifying the PATH environment variable or specifying the executable path explicitly in your script.

If you continue to encounter issues with Selenium or other programming tools, please do not hesitate to reach out to your online community of developers or tech support resources for assistance. Collaboration and knowledge sharing is key in overcoming unexpected errors and challenges. We wish you the best of luck in your coding endeavors and hope that you find our blog content helpful in future troubleshooting efforts.

Below are some common questions people also ask about solving Selenium’s Unknown Error: Cannot Find Chrome Binary on Mac:

  1. What is the root cause of the Cannot Find Chrome Binary error?
  2. The error occurs when Selenium cannot locate the Chrome binary file on your Mac. This may be due to an incorrect path specified for the Chrome driver or an outdated version of the driver.

  3. How can I fix the Cannot Find Chrome Binary error?
  4. There are several steps you can take to fix the error:

  • Ensure that the correct path to the Chrome driver is specified in your code.
  • Update to the latest version of the Chrome driver if you are using an outdated version.
  • Check that the Chrome binary file is located in the correct directory. You can do this by running the command which google-chrome in your terminal.
  • If the Chrome binary file is not in the correct directory, you can specify its location using the binary_location argument in your code.
  • Why does Selenium have trouble finding the Chrome binary on a Mac?
  • Selenium may have trouble finding the Chrome binary file on a Mac due to differences in file paths and system configurations compared to other operating systems. Additionally, updates to Chrome or the Mac operating system may impact the location of the binary file.

  • Can I use a different browser with Selenium if I am unable to fix the Cannot Find Chrome Binary error?
  • Yes, Selenium supports several other browsers including Firefox, Safari, and Edge. You can specify a different browser in your code using the appropriate driver and binary file.