ACS 712 current sensor

Hi everyone, I am doing a project on energy meter and I chooses to ACS712 to measure current but when I include #include"ACS712.h" or #include<ACS712.h> it says ACS sensor(ACS712-05B,A0) is declared

Can you guys help me

Post your code (in code tags)

Post the error messages complete and verbatim - ie copy and paste them (in code tags).

This is all explained for you in the sticky threads.