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title: CFE-ConfigValidator-9: Required setting is missing from section in your config

This error occurs when MPF does not find a required setting in one of your config sections.


For instance, every switch has to have a number in MPF:

    number: 1

You can see which settings are required in the config reference of your device. For this instance, check the switch config reference and you will find that only number is a required setting.

Common Pitfalls

Omitting one of the required settings

If you omit on of the required settings you will see this error. To this this browse to the config reference of your device and add all the required settings. Alternatively, you could use your IDE with the MPF language server to auto-complete all required settings.

Need more help troubleshooting?

Have a look at our Troubleshooting section. It might give you some hints for certain classes of problems.

What if this did not fix your problem?

Please tell us about your error in the community forum and we might be able to update this page afterwards. Or even better: You help us to update it afterwards.

Is something missing here? Do you have a helpful hint for others experiencing this error?

Please create a Pull Request and add it. Alternatively, please tell us in the community forum.

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