IntelliJ IDEA 2018.2.5 (Ultimate Edition)
Build #IU-182.4892.20, built on October 16, 2018
Licensed to Hidehiro Nagaoka
Subscription is active until September 15, 2019
For educational use only.
JRE: 1.8.0_152-release-1248-b19 x86_64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
When I did 'Run Rake Task' I got 'Ruby SDK isn't set' error. But I set the Ruby SDK in the File -> Project Structure.
The project is detected as a JRuby, so I re-create the project like Ruby on Rails project.