Add package in Nuget packages vào trong Customization project in Acumatica?

I'm making a customization for adding export and import features to a page.I used EPPlus packages to do that.

However, when I transfer my customization project file to another Acumatica website. and when I Publish, it shows the error that the project does not have  EPPlus packages. So I used the custom file feature to add EPPlus packages so it can be published on any website.

However I got an error

Failed to resolve method reference: System.Void OfficeOpenXml.FormulaParsing.ICellInfof0...,0...]::Set(System.Int32,System.Int32,OfficeOpenXml.FormulaParsing.ICellInfo) declared in EPPlus.dll

EPPlus.dll Failed to resolve method reference: OfficeOpenXml.FormulaParsing.ICellInfo OfficeOpenXml.FormulaParsing.ICellInfof0...,0...]::Get(System.Int32,System.Int32) declared in EPPlus.dll

When I add Bin/EPPlus.dll to custom Files, I get the above error when publishing customization project.

The problem I am facing is is there any way I can add the EPPlus package to my customization project?