WProgram.h: No such file or directory

Hello,

please let me descirbe what i'm doing

a)arduno uno
b)ds18b20 temp sensor (pin 2)
c)ZS-042 DS3231 RTC module

i want to get the exact time and read from both sensors the temperature (the RTC module has also a temp sensor).

problem: when i compile the code without any code for the RTC module it works fine. If i only add this line #include <DS3231.h> the compiler spits out WProgram.h: No such file or directory

i have searched a lot for this problem and read that i should rename WProgram.h into Arduino.h but i don't know where. And why is this actually a problem ?

thanks

sorry guys, i have the topic "Topic: Read this before posting a programming question ... "

i will try to sort things out on my end. if not i come back

Edit DS3231.h and change WProgram.h to Arduino.h