I have started to learn what Groovy and Grails can do for web application development and I already faced a fun problem.
After I installed GGTS (from Spring.io), I started a simple application and then wanted to upgrade the Groovy and Grails version to the latest.
Not as straight forward as I would have taught but I got everything working again.
First thing learned is that GVM is a useful tool to use to install Groovy and Grails and manage multiple versions. Doing it manually does not make sense.
I also learned from a stackoverflow article that you need to erase the .metadata directory in the GGTS workspace after upgrading. This will force you to re-import your projects but that is the only way I have found to recover the projects so it is a small inconvenience.
Back to learning!
