B4R Question Compile issue

Hi All, have installed the latest version of arduino on my new laptop, then installed the latest version of B4R....
tried to compile and load a small project and recieved the following error...
Loading configuration...
Initializing packages...
Preparing boards...
Verifying...
java.io.IOException: No valid code files found
at processing.app.Sketch.listSketchFiles(Sketch.java:117)
at processing.app.Sketch.<init>(Sketch.java:54)
at processing.app.Base.<init>(Base.java:416)
at processing.app.Base.main(Base.java:150)
I then tried a new project which did nothing but log that it was running.
exactly the same result..
Would really apreciate it if someone could offer a suggestion/ cure for this issue..
Regards
Duncan