Chrome browser is not opening the url using open browser command. it works in all other browsers like firefox, edge etc

[nanduIyer]

Here is the code:

*** Settings ***
Library SeleniumLibrary

*** variables ***

${URL} http://google.com
${Browser} chrome

*** Keywords ***
LaunchBrowser
[Arguments] ${appURL} ${appBrowser}

OPEN BROWSER   ${appURL}       ${appBrowser}
Maximize Browser Window
${Pgtitle}=  Get Title
Log Title
Log     {Pgtitle}

LogOutandCloseBrowser
Close Browser

*** Test Cases ***
Testing with Browser
[Documentation] Launching the browser
LaunchBrowser ${URL} ${Browser}

When I change it to edge or Firefox, it works. only for chrome it doesn’t work. I have copied the chrome web driver in proper path