Delphi compiler when suddenly this problem, never before appeared. Some say the Internet is a problem icon, baffled. Later Open Project - Options like to see the program icon, suggesting that not being given path Application icon, oh, think of the afternoon, when the path of the icon changed. . .
When the original settings icon will pop up dialog box allows selection is left in place or copying the project directory. I then chose to stay in place, so once the route changes, compile time will be a problem. After copying the project it seems set to directory safer.
After re-setting the path error icon disappears.