This parameter cannot be deleted. It is used in the expression of another param

[banksysan]

I have a dodgy parameter, but I can't delete it.

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Parameter deletion failed.
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This parameter cannot be deleted.  It is used in the expression of another parameter, ''.
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OK   
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How do I find this mysterious parameter with no name so I can correct it?

[James.Youmatz]

Hi @banksysan,

In the Modify Menu of Fusion 360, you can select Change Parameters.

In here, you can look through your parameters and find the offending expression.

Thanks,

[banksysan]

It's not displaying in there.  I suspect it's because it's somehow got there without a name.

[daniel_gladyshev]

2025 same problem still exist... 

literary nothing existing, but cant delete a parameter
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Error
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Parameter deletion failed.<p>Parameter 'SlotL' cannot be deleted. It is used in the expression of another parameter, ''.
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OK
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[daniel_gladyshev]

 you see i cannot delete SlotL and it isn't used in any other parameter.
so now I what, need to start from scratch to get rid of this? and this project is only 5 minutes in. imagine how much stuff like that is big projects lol

@daniel_gladyshev - this post has been edited due to Community Rules & Etiquette violation.

[jhackney1972]

Attach the problem model.

[daniel_gladyshev]

there it is

[jhackney1972]

The reason you cannot delete the "SlotL" parameter is because it is corrupt in your model.  In the attached video I show the process of repairing it and then deleting it.  I do not know how it became corrupt.  Your model, if the corrected parameter and then deleted is attached.

[daniel_gladyshev]

thank you sir