C# winforms unable to find assembly

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C#

My c# app is not able to find the assembly Microsoft.bcl.asyncinterfaces even tho the file is there. This error only happens on other computers.

Example: 1. I compile it on my pc, it works on mine but not on my brother's computer
2. I compile on my brother's computer, it works on his but not on mine.

What I have tried:

I tried using publish instead of the normal compile and it somehow fixed it, but I don't like this approach and I was hoping someone knows another way to fix this.