Meaning: The collinear members were placed with different cross-section types, such as a W-shape column with a T-shape section continuing above it. The splice assembly connection does not support this situation.
Recovery: Modify either the existing assembly connection to a different type assembly connection, delete the existing assembly connection, or modify one of the member sections such that they have the same section type.
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Open the Structure task.
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Click Select .
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Set the Locate Filter to Member Assembly Connections.
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Select the splice connection in error.
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In the Type box on the ribbon, select a different assembly connection.
-OR-
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Open the Structure task.
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Click Select .
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Set the Locate Filter to Member Assembly Connections.
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Select the splice connection in error.
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Click Delete .
-OR-
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Open the Structure task.
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Click Select .
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Set the Locate Filter to Member Parts.
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Select the member to change.
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In the Section name box on the ribbon, select the correct cross-section type and size.