RE: How to become Vaadin contributor?

The git repository address and other setup instructions can be found at
Setting up the environment does have quite a few steps, but once it is done, you can focus on making actual changes.

The instructions might still have small errors or omissions - feedback on them would be welcome so we can improve them.

I faced with broken use.precompiled.gwt=true parameters.

I used this for build:

  1. Unpack GWT binaries to vaadin/…/gwt-libs
  2. Manually unpack gwt with ant task: ant -f gwt-files.xml unpack.gwt
  3. Edit vaadin/build/ide.xml:7
  1. Run build: ant