rw950431 on install thingspeak on ubunto 16.04

@mindaslab this error seems to be from eventmachine 1.0.3, which might be defined in your bundle (Gemfile / Gemfile.lock). From skimming this ticket, I think 1.0.3 is known to not work, and 1.0.4+ appears to fix this.

Did you try updating to a more recent version (at the time of writing 1.0.7 is the current version)? If you are using bundler, you can try

which will only change eventmachine (and, if neccessary, its dependencies).