makesis.exe returned with exit value = 1

[cryptyritu]

Hi,
I have suddenly started getting this error:

Creation Time Description Resource Path Location Type
1336393111701
error: file I/O fault.
***Non-Zero Status: makesis.exe returned with exit value = 1
file I/O fault.[C:\Symbian\9.1\S60_3rd_MR_2\epoc32\build\Symbian\Carbide\workspace\MF2K\group\_resolvedMyApplicationName_S60_3_X_v_1_0_0.pkg] MF2K line 29 C/C++ Problem

Earlier the project used to build without errors.
But suddenly this error has started coming. I have tried changing the source path from $(EPOCROOT) to the actual hard coded path of the SDK in use(S60 3rd. Ed. MR)

Please help.
Thanks

[wizard_hu_]

Check the line (number 29) again, if it refers to an existing folder and an existing file. Remember that you have re-installed the SDK and its current path is S60_3rd_MR_2

[nishantanindya]

Thanks Wizard,
Got the problem fixed. Line 29 said that no .exe file could be found. There were multiple includes of some header files. Once I removed them, refreshed carbide,clean and build and suddenly the problem vanished. Still not sure what caused it.