when I build a class library build of the 4.6.1 framework it includes in the build all the dll of the framework that I use, but I imagine that the dlls that already are of the framework should not be generated for the build folder, can help me ?

[![these dlls are from the framework](https://i.stack.imgur.com/A8gFl.png)](https://i.stack.imgur.com/A8gFl.png)

[![Project propert](https://i.stack.imgur.com/XZkCe.png)](https://i.stack.imgur.com/XZkCe.png)

[![References](https://i.stack.imgur.com/kA0ix.png)](https://i.stack.imgur.com/kA0ix.png)