Chrome Issue : Open Browser: Cannot communicate with the browser, please check the UiPath extension

Right after the development browser works fine for 1/2 executions.

  1. it is observed that, if user is using the chrome browser on the personal working profile/laptop, he will not be able to use chrome in unattended robot (ie using his same login credentials)
  2. Even if IE is opened on same machine, chrome extension doesn’t works.
  3. Uipath extension is getting crashed on every execution. and gives below error.

Open Browser: Cannot communicate with the browser, please check the UiPath extension.

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Hi @asif.shikalgar,
Unattended automation will work on the same user account where user is logged in unless this is domain computer where you can define separate account for the same machine.

In same domain, one machine is User’s Laptop and Other machine is VM that works as a Robot with using same domain user account on both machines.

Hi @asif.shikalgar,

I have had this issue before. So this is an issue with Google Chrome browser and the way Chrome gives the last closed user session more priority!

Chrome remembers the user profile who last closed the browser. So if it was a non-robot user profile which accessed Chrome and closed chrome, when the robot runs the process, it opens chrome and is greeted with the wrong profile, which may or may not have an UiPath Extension.

I know it’s very annoying when debugging.

A solution could be to make a small workflow to check which user profile is active. If a wrong profile is active, change to robot profile first and then start the process (You can use the recorder activity to do this since browser extension will be unavailable). Hope this helps!

That’s true. It might be solve using method I’ve described here:

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