Cannot open browser

I just new create a project only have a command open browser , but in console it was showed message “Caught: Invalid argument” ( attach image)
please, help me

Is it giving you an error in the log when you run it ?

Do you have this line ?
import com.kms.katalon.core.webui.keyword.WebUiBuiltInKeywords as WebUI

Oh didnt even see that was script mode - yeah just hit - Cntrl+Shift+O - so any missing classes are imported

WebUI is not imported in this way, because it’s an alias :wink:

I didn’t understand in the last version katalon when i change location when i created projected i will meet erro there. if i didn’t change location , i can run normal project.

i got the same error and don’t know how to fix

do you name your project name as unicode character?