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title: CFE-coils-1: Driver must have a number

CFE-coils-1: Driver must have a number

Related Config File Sections:

This error occurs when MPF loads a coil which is has an empty number or misses a number entry. Unfortunately, hardware needs a switch number to address your coil and it cannot continue without a number.


Physical Coils

This is how a coil should look:

    number: 1

The actual number depends on your hardware platform. See the How to configure "number:" settings guide for details.

Virtual Coils

Sometimes you did not wire up a coil but you know that you will need it later. This is a problem for your physical hardware controller but you can tell MPF to use the virtual hardware platform for one particular coil:

    platform: virtual

In this case the number can be empty.

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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