在对模型分析计算时，出现了一下情况：


MULTI-FRONTAL SOLVER
AVAILABLE MEMORY = 1.4 GBYTES
ENTRY PHASE FOR RENUMBERING
ENTRY NUMBERING_EQN
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2511
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2511
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2511
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2667
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2667
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2667
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 601
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 601
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 601
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 3169
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 3169
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 3169
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 3896
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 3896
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 3896
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2838
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2838
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2838
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 663
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 663
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 663
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2738
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2738
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2738
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2635
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2635
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2635
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2638
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2638
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2638
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2747
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2747
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2747
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 3527
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 3527
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 3527
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2837
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2837
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2837
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2634
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2634
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2634
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 665
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 665
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 665
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 69
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 69
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 69
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 3676
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 3676
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 3676
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2512
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2512
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2512
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2668
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2668
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2668
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2646
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2646
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2646
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 602
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 602
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 602
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2836
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2836
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2836
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2683
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2683
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2683
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2839
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2839
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2839
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2917
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2917
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2917
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2324
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2324
WARNING : INVALID DEPENDENT DOF OF EQUATION CONSTRAINT AT NODE 2324
ENTRY FORM_STIFF_MASS_LOAD
THE INDIVIDUAL ELEMENT STIFFNESS AND LOAD MATRICES WILL NOW BE FORMED.
ELEMENT NO. : 7207 OF 7207
ENTRY SOLUTION PHASE
ENTRY LOAD_BLOCK
TOTAL NUMBER OF VALID DOFS IN MODEL : 189

ENTRY STATIC ANALYSIS
MULTI-FRONTAL SOLUTION HAS BEEN PERFORMED 30 % .
INCOMPLETE MULTI-FRONTAL SOLVER
IERROR= -1

一直都搞不明白是怎么回事，请各位大师指点迷津。这个该如何解决？
谢谢！！