To create a new project from scratch you have to open up a new terminal window, go into the folder where you want to create your flutter project and type:

flutter create projectname

for project name you have to follow some guidelines:

• should be lowercase
• if you want separate words use underscores, for example 'this_is_a_test'
• use only basic latin letters and arabic digits [a-z0-9_]
• dont start with digits
• dont use reserverd word like 'return'

After this simple command you have to wait a little bit and you are done, flutter will create a new folder with all files project inside.