Error message: joist span requirements

[Anonymous]

I am trying to run a modal analysis, but first I need to get rid of one error message...  In the structure verification dialogue box, it says, "Current joist span does not satisfy minimum span requirements." 

Any ideas on how to fix this issue??

Thank You,

[Artur.Kosakowski]

The distance between end nodes of a bar with a joist section assigned has to be within the available range for this joist type (e.g. for this example cannot be e.g. 10 m)

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