Process could not be started [The system cannot find the path specified. ]

[VirendraArekar]

MAIL_MAILER=smtp
MAIL_HOST=smtp.mailtrap.io
MAIL_PORT=2525
MAIL_USERNAME=############
MAIL_PASSWORD=############
MAIL_ENCRYPTION=tls
MAIL_FROM_ADDRESS=#############@gmail.com
MAIL_FROM_NAME="${APP_NAME}"

For sending mail it show me this error. Even I try it with different mail package but same error. But if try fresh Laravel installation it work for sending mail. I am using Laravel 7. Please help me.