We received a bug report:
STEPS TO REPRODUCE:
1) At the command window, issue the following:
Choose Tools->Gallery from the main menu
2) If the Visual FoxPro Catalog isn't open, then open it. Click on that
node in the left pane.
3) Using the combo box in the upper left, change the selected value from
"Default" to "Class By Type"
Error building key for index "c:\temp\00004utl00bf.cdx" tag "Type".
Press OK to ignore error and continue.
Press Cancel to close Component Gallery.
The component gallery creates an index, but that index has a variable length index expression:
You can see the error line by unzipping Tools\Xsource\Xsource.zip.
See line 4446 in VFPSource\Browser\Browser.prg
INDEX ON UPPER(Type)+IIF(EMPTY(Parent)," ",UPPER(PADR(Text,50))) TAG Type
The expression has a conditional: with a length of either 1 or 50.
The fix is to make the index key length constant:
INDEX ON UPPER(Type+PADR(IIF(EMPTY(Parent),"",Text),50)) TAG Type
Moral: beware of index key expressions of variable length!