Problem reading file from private path when program installed on memory card

[javed@advoss.com]

Hi,
I have a code that reads and writes a file in private path of the program's installed directory, however the problem is that its not working when I have installed the program in memory card and it just crashes.

Here is the code that I am using,

------------------------------------
_LIT(KtxDicFileName ,"abc.txt" );

TFileName path;
TFileName pathWithoutDrive;
CEikonEnv::Static()->FsSession().PrivatePath( pathWithoutDrive );

// Extract drive letter into appDrive:

#ifdef __WINS__
path.Copy( _L("c:") );
#else
RProcess process;
path.Copy( process.FileName().Left(2) );

if(path.Compare(_L("c")) || path.Compare(_L("C")))
CEikonEnv::Static()->FsSession().CreatePrivatePath(EDriveC);
else if(path.Compare(_L("e")) || path.Compare(_L("E")))
CEikonEnv::Static()->FsSession().CreatePrivatePath(EDriveE);
#endif

path.Append( pathWithoutDrive );
path.Append( KtxDicFileName );

TInt32 value = -1;
RFs& fileServer = CCoeEnv::Static()->FsSession();
User::LeaveIfError(fileServer.Connect());

RFileReadStream readStream;

TInt err = readStream.Open(fileServer, path, EFileRead);
CleanupClosePushL(readStream);
if(err == KErrNotFound)
{
CAknInformationNote* informationNote = new ( ELeave ) CAknInformationNote;
informationNote->ExecuteLD(_L("File not found , creating"));
value = -1;
RFileWriteStream writeStream;
User::LeaveIfError(writeStream.Replace(fileServer, path, EFileWrite));
writeStream.PushL();
writeStream.WriteInt32L(value);
writeStream.CommitL();
CleanupStack::PopAndDestroy(&writeStream);
}
else if(err == KErrNotFound)
{
CAknInformationNote* informationNote = new ( ELeave ) CAknInformationNote;
informationNote->ExecuteLD(_L("Path not found , creating"));
value = -1;
RFileWriteStream writeStream;
User::LeaveIfError(writeStream.Replace(fileServer, path, EFileWrite));
writeStream.PushL();
writeStream.WriteInt32L(value);
writeStream.CommitL();
CleanupStack::PopAndDestroy(&writeStream);
}
else
{
CAknInformationNote* informationNote = new ( ELeave ) CAknInformationNote;
informationNote->ExecuteLD(_L("File found , reading"));
readStream >> value;
}

CleanupStack::PopAndDestroy(&readStream);
return value;

---------------------------------------------------

I have checked the path variable by printing it on a message box and its fine like, e:\private\uid\file.ext

Can anyone please tell me what am I am doing wrong here, the code works fine when the program is installed in phone memory.

[wizard_hu_]

Check the panic code: http://www.developer.nokia.com/Commu...ded_panic_code
Since the e: drive is accessible in USB File Transfer mode, you could also verify if the directory gets created successfully.
Note that starting from S60 3rd FP2, devices may also have f: drive, or even more. If you want to use this CreatePrivatePath-magic, you can use RFs::CharToDrive. Honestly said I would use a single RFs::MkDirAll (after the Append-s, since it ignores the filename-part anyway)

[javed@advoss.com]

I checked by connecting the set via USB , the directiry doesnt exist, the path that I am creating for the file is correct, I have verified that by displaying in a message box.

I just checked that there is a problem in the code below the else if sould be like this

else if (err == KErrPathNotFound)

but even with this, the problem persits, how can I see the panic code??

[wizard_hu_]

but even with this, the problem persits, how can I see the panic code??

Reading the linked article? You need the "S60 3rd Edition and later" stuff and install the ErrRd file.