The proxy Itec\Sales\Models\InvoiceItemProxy has a non-existent contract class: `Itec\Sales\Contracts\InvoiceItem`
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I was trying to override Sales module. Everything are okay but, when I was trying to save invoice then this error occur. I can't find the error.

This is the provider

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Hi @RK-REZA
Your InvoiceItemProxy class have not its interface which you need to create in contracts folder.
Thanks
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Solved thanks