A resource file is corrupted. By default, your resource file is FoxUser (FoxUser.dbf and FoxUser.fpt).
FoxUser.dbf, FoxUser.fpt, or one of your default resource files is corrupted.
Restore your resource files from backup, or exit Visual FoxPro, delete the resource files, and then restart Visual FoxPro.
To check your default resource file, see the File Locations tab of the Options dialog box or use the SET RESOURCE command.