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getting warning 1931

User: "Altair Forum User"
Altair Employee
Updated by Altair Forum User

hi all

I am doing frequency responce analysis in optistruct and i am getting warning 1931.

SPC 1 is not referenced by Case Control.

can anyone help to me to remove this warning.?

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    User: "tinh"
    Altair Community Member
    Updated by tinh

    Hi, in loadstep you did not select 'SPC' so the warning appears. Check it again please