I'm trying to build a project that uses leiningen -- though my issue seems to be with leiningen and not with the project.
When I run lein figwheel dev (for a project that has a /dev folder configured correctly) I get the following:
Figwheel: Cutting some fruit, just a sec ...
Unrecognized option: --add-modules
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
Which indicates it's an error with the JVM, but I'm not familiar enough with working with any of JVM / clojure / lein to know what I should be doing to fix it.
Some (hopefully!) helpful information about my stack:
$ java --version
openjdk 11.0.1 2018-10-16
OpenJDK Runtime Environment (build 11.0.1+13-Debian-2)
OpenJDK 64-Bit Server VM (build 11.0.1+13-Debian-2, mixed mode, sharing)
$ lein --version
Leiningen 2.8.1 on Java 1.8.0_171 OpenJDK 64-Bit Server VM
Clone this repo and see if it solves your problems: https://github.com/cloojure/cljs-template
Be sure to read the README.txt file and follow the instructions.
For this project, all you need is:
> lein figwheel
I'm not sure what you have in your ./dev folder - that's probably the problem.