code this link.
https://cdn.instructables.com/ORIG/FSR/83MH/I2G1F678/FSR83MHI2G1F678.ino
I found this problem.
SR83MHI2G1F678.cpp: In function 'void setup()':
FSR83MHI2G1F678:122: error: 'class DateTime' has no member named 'get'
FSR83MHI2G1F678.cpp: In function 'void LightControl()':
FSR83MHI2G1F678:1547: error: 'class DateTime' has no member named 'get'
FSR83MHI2G1F678:1548: error: 'class DateTime' has no member named 'get'