I am a beginner in OpenModelica and currently focusing on thermo-hydraulic systems. As I am trying to build a district heating system, the model has passed the model checkout phase, yet failed in compilation with an error “no member named ‘nominal’ in ‘struct INTEGER_ATTRIBUTE'”.

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I did some research and some indicate that it may be an internal bug. Hence I am trying to know whether this is due to my modelling, which I can work further to avoid it or indeed a bug that I should find a different way?
If the bug is related to my modelling, how can I debug it?
Many thanks for your help!