However, it appears that the underlying cause may be that the HH.exe (the Microsoft Windows Help utility) is still running in the background, even when a help file has been closed. If I end this process through Task Manager, the project builds successfully. The HH.exe also uses up 50% of my PCs resources whilst open, which locks up other open applications. This is not a permanent solution, but I can live with it for the time being
Anyone else had this error and found a permanent solution?