Unity does not create Unityassemblies folder in Unity

Questions & Answers
1

We use Unity with git in the office and recently included Unity Test Tools, which reference Mono.Cecil.
80% of the machines are fine with everything, on around 20% the Mono.Cecil dll is not found. We already nailed the error down to the ProjecTname/Libraries/UnityAssemblies folder not beeing created / not containing all dlls, but I have no idea how to approach a solution.

Can anyone give some insights hwo this folder is managed / where contents are defined?

2

Did you ever figure out what was going on?

I use the UnityAssemblies folder to build external plugins for my project. It looks like the folder is synced right before the script editor (Visual Studio) is launched. E.g. Assets->Open C# Project or double clicking on a script.

The Editor has an internal class (SyncVS) that syncs the VS solution, but you can’t call it using normal methods. Maybe through reflection.