[Solved] Upgrade ruby to 2.4.0
json(1.8.3) is not compatible with ruby 2.4.0. Try using a newer version. $ bundle update json 1 solved Upgrade ruby to 2.4.0
json(1.8.3) is not compatible with ruby 2.4.0. Try using a newer version. $ bundle update json 1 solved Upgrade ruby to 2.4.0