hi
i start with an blank app but when i am gone i saw that i may need a side menu so how i can add it
Regards
try to download direct SideMenu app … Hide Side menu for login/register pages and enable for Home page
ionic start appname sidemenu --v2 --ts
i can not because i should re-start from the beginning i need a way just to add not rebuild one so far 
try this.SideMenu Implementation.
Hope. it will resolve your issue.