Visual Studio 2019 can't compile external assets.

Attaching Visual Studio 2019 to Unity is my main way of debugging, for some reason this has stopped working. When it tries to compile it complains on all external assets scripts that it cannot find dependencies.

The project compiles fine inside Unity. Is this some error introduced in latest version (2019.3.12)? I've never had this issue before.

Simply building the solution inside Visual studio does not work either, same errors, which makes sense. Hoping someone has run into this before...

 

What is the exact error message? Always post an exact error message.

 

Posted, like I said only external assets complaining, seems to be the ones that visual studio counts as being in other projects. All the references it is complaining about exist, I can go to each class and look, still Visual Studio does not recognise them.

 

Can confirm this, since 2019.3.12, Visual Studio solution no longer compiles, spitting ton of referencing errors. Quick Actions menu suggests to reference Firstpass assembly, but it doesn't fix anything. As a result, IntelliSense is broken and no debugging is available.

At the same time, Unity Editor not showing any errors, and a project can be played without any issue.

Same project on 2019.3.11 works with Visual Studio as expected.

Related thread: https://answers.unity.com/questions/1725203/visual-studio-cant-reference-to-firstpass-assembly.html

 

I can confirm the same issue after upgrading to 2019.3.12.
I upgraded my projects to 2019.3.13 and the issue is resolved.

 

same here. Visual studio projet are ignored. Some namespace not found for external assets.