Hi @Nathan R ,
Thanks for using Microsoft Q&A !!
I have tried using the sample and it works fine and I am able to build the solution without any issues.
I have only installed only two packages -
Install-Package Microsoft.Data.Encryption.AzureKeyVaultProvider -Version 0.2.0-preand
Install-Package Microsoft.Azure.Cosmos.Encryption -Version 1.0.0-previewV18
Looks like these to nuget packages are taking care of other dependencies. Can you please try building it again by removing other two packages - Azure.Identity and Microsoft.Azure.Cosmos
Please let me know if you have any questions.