# Configuration error

When a control program starts, it may report that a tool or frame cannot be found. This can happen after an emergency controller shutdown causes the configuration to be lost.

## Symptoms

The problem appears when starting **TeachKuka** or **ServerFriRos2**. The main smartHMI menu shows the following diagnostic signs:

- yellow warning indicators under **Process data**;
- yellow warning indicators under **Frames**.

![Display error](assets/troubleshooting/config_error/DisplayError.jpg)

![Process data warning](assets/troubleshooting/config_error/data_process_warning.jpg)

![Frames warning](assets/troubleshooting/config_error/frames_warning.jpg)

## Resolution steps

Follow these steps:

1. Connect an external monitor to the robot controller.
2. Restart the controller.
3. Sign in with the following credentials:
    - Username: `KukaUser`
    - Password: `68kuka1secpw59`

    !!! warning "Keyboard layout"
        The controller uses the German keyboard layout (`DE`) by default. Take this into account when entering the password.

4. Copy the complete project to a USB drive.
5. Open File Explorer with ++win+e++.
6. Go to:

    ```
    C:\KRC\Projects
    ```

7. Replace all files in this directory with the versions from the USB drive.
8. Run the system restart application from the controller desktop.

![Controller desktop](assets/troubleshooting/config_error/desktop.jpg)

After the restart, the configuration is restored and the control programs should start normally.