Hello i found my problem. It was my reset pin. IT was disconnected. So i put it back on reapply power and uploaded with no errors However this time nothing yet on the Oled screen still blank.
Edited: I did mange now to get something on the Oled Saying Hello world in small text by changing this line
U8X8_SSD1306_128X64_NONAME_SW_I2C u8x8(7,5,1);
to
U8X8_SSD1306_128X64_NONAME_SW_I2C u8x8(2,0);
Is there a way to increase the front size to make a larger text?