compiling error

compilation terminated.

exit status 1 Error compiling for board Arduino/Genuino Uno.

when i try to upload my project to my Arduino it gives me this error and I don't know what to do, can anyone help?

it seems to be that it can’t find my <OneWire.h> file but i’m sure i just installed it.

Include the full text of the error, not just the last couple of lines. You can copy all the error messages with the button to make it easy to paste in here.

here you go

D:\Users\maart\Documents\Arduino\libraries\DallasTemperature\examples\Simple\Simple.pde:2:21: fatal error: OneWire.h: No such file or directory

#include <OneWire.h>

^

compilation terminated.

exit status 1
Error compiling for board Arduino/Genuino Uno.

Sounds like you did not install that library, or installed it in the wrong place, or you don't have the permissions to read it.

how do i know if i installed in in the wrong place?

By reading the page on this site about libraries and seeing where it says to put them.