fserror is coming while trying to access sd card folders using ffind function in c language

Hi All,

I am using Keil uMicroVision ver5.04 for my project.I am trying to accessing SD card contents .

I have used the ffind function:

// find whatever is in "M"
stat = ffind("M:*", &info);

The stat gives the status of the ffind function .

Earlier if was showing correctly as fsOk but now it is coming as fsError(unspecified error).

can any one explain why this error is suddenly coming now when earlier it was fsOK.

I have not done any changes to code between the two output values.

Kindly help .

Regards,

Pratap