我在用ABAQUS進行分析時，總是算了一下就出錯，看了一下warning主要是這些問題，求問怎么解決
Slave surface assembly__pickedset113_cns_ is a node-based surface used with surface to surface approach. In order to obtain improved stress accuracy with this approach, an element-based surface should be used instead. 

Path based tracking is defined in contact pair (assembly__pickedset113_cns_,assembly_bpl-2_rigidsurface_). Path based tracking cannot be used with analytical rigid master surfaces, the state based tracking algorithm will be used instead.
分析的內容主要是一個桁架結構的點與剛性分析平面受力接觸，且桁架結構受力塑性變形