Help: Eclipse won't build after rebase - org.eclipse.swt

[rad-pat]

Hi, I have a PR in which I was able to build and test with Eclipse on Linux.
Since I rebased the code to fix issues, I cannot build within Eclipse because it cannot find org.eclipse.swt.
Maven build seems to work fine, but I want to test and cannot currently debug through Eclipse.
Could someone please point me in the right direction. I'm an infrequent Eclipse user, so it could be something very basic. I have tried to search for the library using the "Install New Software" in Eclipse, but not had any joy.