integration.NAME.csproj is not visible

[jinsw1081]

i use this sequence in demo-unity-project

1. init suceess
2. add success
   integration.NAME.csproj

i do that

console
dotnet tool install --global toitnups --version 1.0.2
[navigate to your Unity project directory] --what is this ?
i think demo-unity-project is navigated unity project directory

toitnups init success
toitnups add sample Plugins\Sample
Install-Package Microsoft.Office.Interop.PowerPoint -Version 15.0.4420.1017
toitnups push

successful

next sequence

1. init
2. add
   1~2 is i did that
   toitnups init , Install-Package Microsoft.Office.Interop.PowerPoint -Version 15.0.4420.1017
3. what is the integration.NAME.csproj?

plz help ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;