Problem with I2c communication

Hi everyone. I've made a quite simple sketch for a Wheather station project. However when today i reload a sketch on the arduino board (where i change only a constant) it doesn't see BMP180 sensor... i've done a i2c scanner and it is able to see the sensor at 0x77 address but the BMP180 library seems not to see it
Anyone can help me?

Change the code back to what it was…

i've tried but still the same problem ...

@OP

Post your codes with code tags (</>).

Thanks for answering. I 've tried to load the sketch with my old computer and I 've notice that it works... !can it be a problem in installing the library on the new computer or something that I've change unconsciously?

matteoverze:
Thanks for answering. I 've tried to load the sketch with my old computer and I 've notice that it works… !can it be a problem in installing the library on the new computer or something that I’ve change unconsciously?

And still, we demand, you should post your codes with code tags(</>).

Make sure the I2C address in your code matches that of the sensor.