I was working on a piece of code in eclipse that was working fine when I stopped work about 8 months ago, when I tried running it today (with no changes made to the files/java installs as far as I know of) I got the above error from eclipse.
I have tried the solution from Eclipse: The specified JRE installation does not exist to no avail. I reinstalled JRE 8 and set jre1.8 as the default system library in the program but am still having the same issue. It persists whether I use jre1.8, jdk1.7, or an executable environment.
Any ideas would be appreciated. Thanks