I am having issue with adding my Google calendar in MMM and have done some reading but still no clue.

The default sample “US-Holiday” was shown normally but when replace with my public ical url from Google calendar, it hang at loading…

I tried the result show:

npm ERR! path /home/pi/package.json
npm ERR! code ENOENT
npm ERR! errno -2
npm ERR! syscall open
npm ERR! enoent ENOENT: no such file or directory, open '/home/pi/package.json'
npm ERR! enoent This is related to npm not being able to find a file.
npm ERR! enoent 

npm ERR! A complete log of this run can be found in:
npm ERR!     /home/pi/.npm/_logs/2018-04-24T03_10_41_602Z-debug.log

And also tried the result show:

npm ERR! path /home/pi/package.json
npm ERR! code ENOENT
npm ERR! errno -2
npm ERR! syscall open
npm ERR! enoent ENOENT: no such file or directory, open '/home/pi/package.json'
npm ERR! enoent This is related to npm not being able to find a file.
npm ERR! enoent 

npm ERR! A complete log of this run can be found in:
npm ERR!     /home/pi/.npm/_logs/2018-04-24T03_12_01_074Z-debug.log

Any expert kindly help me please. Thank you.