How to overcome this issue?

[rathnapriyar99]

When I click on the launch course icon,it's displaying the message as,"Please login into your class before accessing this course"

[Bobby2]

Hi  @rathnapriyar99 ‌, thanks for your question.

I am a little confused though because if you access your course then you are logged in. 

Do you mean that you would like to log in to Canvas and see your course before it starts? You will need to wait for your instructor to publish the course and sends you the invitation. Once the invitation is accepted by you then you can access the course. 

I hope that helps.