Categories: Symbian C++ | How To | Debugging | Error Handling

This page was last modified 09:59, 21 January 2008.

From Forum Nokia Wiki

If your application generates a panic it will be closed and an error note is shown by the OS: "Program closed:/n%S" where %S is your application's name.

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S60 1st and 2nd Edition

To get the emulator/device display the reason and error code for panics, create a zero-sized file named ErrRd (no file name extension) under the PC's directory %EPOCROOT%\epoc32\wins[cw|b]\c\system\bootdata\.

On the device, you should create a zero-sized file ErrRd (no file name extension) under the directory c:\system\bootdata\. You can use a file explorer application (for instance, FExplorer) to create the file, or if none is available, use a signed sis file.

S60 3rd Edition

To get the emulator/device display the reason and error code for panics, start the emulator, then open its Tools -> Preferences menu, and finally make sure the "Extended panic code file" option is checked on the C++ Debug tab. (This has the effect of creating a zero-sized file named ErrRd (no file name extension) under the PC's directory %EPOCROOT%\epoc32\wins[cw|b]\c\resource\.)

On the device, you should create a zero-sized file ErrRd (no file name extension) under the directory c:\resource\. You can use a file explorer application (for instance, FExplorer) to create the file, or if none is available, use a signed sis file. In case you don't want to use ErrRd, then you could also use Y-Tasks Crash monitor.

You can obtain a prebuilt sis file from here

The results

Once this file is created, the error note shown by the OS would look like: "Program closed:/n%S/n%S %d" where the second %S is replaced by the panic reason (for example, USER, KERN-EXEC, etc.) and %d would be replaced by the panic code.

Note: The panic reason and code are only shown on this error note; they are NOT logged into the ErrRd file.

A quick search in SDK's help and you will find a hint on the kind of programming error you should be hunting for in your code.

When reporting an application crash, either on Forum Nokia's Discussion Boards or to Forum Nokia's Technical Support service, please add the panic reason and code to the problem description.

Refer to the following link for: Symbian OS Error Codes.