I have some general advice.
- SwitchYard is not very active these days, you'll have better luck (and future uses) for Wildfly-Camel. Camel has pretty much taken over the Integration space, you may want to give it a look.
- If you are going to use SY, get the latest DevStudio with SY support, I think that's 11.3.
- Sometimes other plugins will interfere with your SY plugins. If it gets too aggravating, just build from command-line Maven. (This seems especially true for plugins that do things like package .wars, etc.)
- Always start your projects from a copy of one of the SY 'quickstart' applications. These are known to work well (and quickly).
All of Rick's advice is totally on point and I think you should update to more standard versions of tooling and SwitchYard - but as to your specific error, it is telling you that maven can't find a 1.1.1-p5 switchyard-plugin. Three choices:
a) Use an available community version (1.1.0.Final, etc) : Maven Repository: org.switchyard » switchyard-plugin
b) Use 1.1.1-p5.redhat-1 - that's the version I would have expected JBDS to have configured, but maybe I'm missing something : Maven Repository: org.switchyard » switchyard-plugin » 1.1.1-p5-redhat-1
c) Build the 1.1.1-p5 switchyard-plugin (email@example.com:jboss-switchyard/core.git)