Can't publish due to "shader warning"

Unity Engine
1

I’m going through Unity’s tutorials and can’t publish a 3D scene because of this error
Shader warning in ‘Hidden/Universal Render Pipeline/CopyDepth’: implicit truncation of vector type at Project/Library/PackageCache/com.unity.render-pipelines.universal@12.1.9/Shaders/Utils/CopyDepthPass.hlsl(104) (on gles)

Does anybody know how I would go about correcting this or finding what setting is off? I’m not computer literate enough to understand this error

2

This is a warning and can be ignored. It doesn’t break anything if you don’t see any issues with the shader in builds

3

Good to know. Turned out not to be working because I wasn’t signed in on the Unity editor.