Is there any update on this?
I have the same issue in state diagrams.
I also tried the new (beta) style syntax but get the same error:
@startuml
skinparam useBetaStyle true
<style>
note {
BackgroundColor #ccffff
}
.Blue{
BackgroundColor LightBlue
}
</style>
state Test1
note right of Test1 : This is a note
note <<Blue>> left of Test1 : This is a note
@enduml
Error found in diagram states-1
ERROR
14
Syntax Error?
Some diagram description contains errors