The precise message is
"Charts (Old)" could not be opened. (Not found)
I've tried two more things :
- I removed the ".fp7" suffix from Charts (Old) in case that was confusing things. That didn't achieve anything.
- After getting the message and locating the file, I then closed Charts without quitting FMP, and immediately re-opened it to see if the message would still appear. It did.
Anyone got any ideas about this?
One of the new features avalailable to you in FileMaker 10 is Manage | External Data Sources...
You can open this section, find the reference to Charts (old) that isn't working and fix it there. Brace yourself, some converted files of this type can be quite "cluttered" with extra file references.
Ok, I did that. Strangely, the only file that came up in the external Data Sources list was Charts (Old)! So I decided to add it again (+), and it appeared a second time, but this time without its full path. So I closed the database, re-opened it, and yay, no warning message. I don't know what I did exactly, except 'add' the file twice, but it seems to have worked.
A file reference without the full path is a "relative path". FileMaker uses this path to look for the file in the same directory as the current filemaker file. With Relative paths, you can keep all the files together in one folder and they'll continue to work even if you move the folder they are in around and/or rename an enclosing folder.
(And when you list several such references together like this, FileMaker starts at the top of the list and works its way down until it either finds and opens the file or runs out of references. The dialog you've been seeing is what appears when none of the listed references work.)