Typeerror: 'nonetype' Object Is Not Subscriptable While Invoking Execute_script() For Chrome Download Manager Through Selenium

I have been using this function https://stackoverflow.com/a/48267887/11220889 for waiting for downloads to finish and returning the file path once finished. And it has been working

Solution 1:

As per the error message:

TypeError: 'NoneType'objectisnot subscriptable

Your main issue seems to be incompatibility between the version of the binaries you are using as follows:

• You are using chromedriver=2.43
• Release Notes of chromedriver=2.43 clearly mentions the following :

Supports Chrome v69-71

• You are using chrome=73.0
• Release Notes of ChromeDriver v2.46 clearly mentions the following :

Supports Chrome v71-73

So there is a clear mismatch between ChromeDriver v2.43 and the Chrome Browser v73.0

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Solution

• Upgrade ChromeDriver to current ChromeDriver v2.46 level.
• Keep Chrome version at Chrome v73 level. (as per ChromeDriver v2.46 release notes)
• Clean your Project Workspace through your IDE and Rebuild your project with required dependencies only.
• If your base Web Client version is too old, then uninstall it and install a recent GA and released version of Web Client.
• Execute your @Test.
• Always invoke driver.quit() within tearDown(){} method to close & destroy the WebDriver and Web Client instances gracefully.

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Update

Currently GAed Chrome v73 have some issues and you may like to downgrade to Chrome v72. You can find a couple of relevant discussions in:

• Getting Timed out receiving message from renderer: 600.000 When we execute selenium scripts using Jenkins windows service mode
• Timed out receiving message from renderer: 10.000 while capturing screenshot using chromedriver and chrome through Jenkins on Windows