SSRS Barcodes broken in reports after upgrading to 2016

We recently upgraded our report server to 2016 and everything worked great except for the reports that contain barcodes. I tried going back through the same article I used the first time we started using barcodes but so far I have not had any luck. I am getting this error:

"Failed to load expression host assembly. Details: Could not load file or assembly 'BarcodeLib, Version=1.0.0.18, Culture=neutral, PublicKeyToken=null' or one of its dependencies. Failed to grant permission to execute. (Exception from HRESULT: 0x80131418) (rsErrorLoadingExprHostAssembly)"

Has anyone else encountered this problem? What am I missing?

If the assembly is accessible to SSRS then it must be expecting a different version of your assembly. You can either ensure your version matches the definition in your reference or remove the version altogether to see if that is the problem.

Change your report reference to (No version) --> BarcodeLib, Culture=neutral