if you want to make error and warning free artwork
you have to read and follow both the Manual and Tutorial guides provided by the the software provider.
they are there , right on the concerned folder. these things come of experience thro continuous use and skill developed thereby.
Perhaps chats like what we are doing can add little.
you had never been able to copy the warning or Error, and paste it on the forum for any one to study and comment..
all the best.