Chromewrecker

cant get library in to arduino

1

when i try to install the library that has been downloaded it says Specified folder/zip file does not contain a valid library how do i correct this.. with in arduino...

cant verify

10

when i try to verify the file in arduino i get this C:\Users\Tim\Downloads\PortalGun-master\PortalGun-master\portalGun\portalGun.ino:32:22: fatal error: TimerOne.h: No such file or directory #include ^ compilation terminated. i have downloaded and installed...