UdonRabbit.Analyzer reports Error for those that cause compilation errors, Warning for others.
Those that are no longer needed due to Udon or UdonSharp updates will be assigned Hidden.
It is an analyzer to deal with the restrictions and specifications of language features due to the specifications of VRChat Udon.
If there is no problem with the specification, but unexpected behaviour occurs, a Severity: Warning
is assigned.
It is a restriction of language features by the specification of UdonSharp. Basically all analyzers are reported as Severity: Error
.