[Doxygen-users] Error when using !include in @startuml

[Vega, L. A <lui...@lm...>]

The following snippet will produce a runtime error:
@startuml
    !include diagram.iuml
@enduml

The output error is the following:
Error line 2 in file: <path>\html\diagram.pu
Some diagram description contains errors

The generated file (diagram.pu) looks as follows:
@startuml        !include diagram.pu
      @enduml

As you can see, the problem is that Doxygen failed to insert a return character after @startuml

Workaround: insert an empty line between @startuml and !include
@startuml

    !include diagram. iuml

@enduml