⚠️ CAUTION: SLIPPERY FLOOR ⚠️The Arduino Library Manager installs the ArduinoJson version 6 by default.
However, using version 5 is highly recommended because version 6 is still in beta stage.
Open the Arduino Library Manager and make sure that ArduinoJson version 5.13.4 is installed.
For some reason, it’s not possible to use ArduinoJson with CodeBender.
See discussion here: http://feedback.codebender.cc/forums/280538-library-requests/suggestions/7238254-arduinojson-support