First of all, I am a real newbie using any cloud services, and this is the first time that I have asked something here, therefore I am apologizing in advance if anything I may say is wrong.
I'm trying to deploy a Spring Boot app using Google Cloud Platform's App Engine, locally it is running exactly how it should on Eclipse (I'm using the GCP tool for Eclipse), but when a try to deploy it on Eclipse it crashes sending some message like this:
"(OperationalError): unable to open database file."
I did some research and it turned out to be a dead end, so a tried to deploy using Maven command on terminal
$ mvn appengine:deploy and it works, but when I access the generated URL it sends me an error message App Engine Error Screenshot Link.
I'm guessing it has something to do with Tomcat, because of this weird error message and for the fact that GAE does not use it and I used while developing, but I excluded all Maven dependencies related to it, so I feel really lost on this one.
Just so you know, no error reporting is shown on GCP Console or App Engine Dashboard, the only message I receive is this weird one.