Multiple problems upon installation

Can anyone help me with this? I’ve installed the GrovePi and its libraries. It is working, but not entirely

  • I2C works, although the scan sometimes misses the MCU
  • digitalWrite works but the system hangs on digitalRead
  • cannot update firmware - get a gpio/direction error
  • the software cannot see the wiringPi library even though it’s installed

Will upload a test log as soon as I figure out how. In the meantime I’ve pasted excerpts below

Any help or guidance much appreciated!

dpkg-query: no packages found matching minicom
scratch install ok installed

find: ‘/run/user/1000/gvfs’: Permission denied
wiringPi Not Found (ERR) <<<<<<<<<<<<<<<<<<<<<
find: ‘/run/user/1000/gvfs’: Permission denied
I2C still in blacklist (ERR) <<<<<<<<<<<<<<<<<
SPI still in blacklist (ERR) <<<<<<<<<<<<<<<<<<<<<<

avrdude: Version 5.10, compiled on Jun 18 2012 at 12:38:29
Copyright © 2000-2005 Brian Dean,
Copyright © 2007-2009 Joerg Wunsch

     System wide configuration file is "/etc/avrdude.conf"
     User configuration file is "/home/pi/.avrduderc"
     User configuration file does not exist or is not a regular file, skipping

     Using Port                    : unknown
     Using Programmer              : gpio

gpio/direction: No such file or directory <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

avrdude done. Thank you.