"Multiple keywords with name xxx" error displayed in tear setup and tear down

[Tejaswi92]

The below error message is displayed, even though I imported ExtendedSelenium2Library. I also had uninstalled Selenium2Library

Multiple keywords with name 'Close All Browsers' found. Give the full name of the keyword you want to use: ExtendedSelenium2Library.Close All Browsers Selenium2Library.Close All Browsers

Kindly help