我把Petrel模型导入到CMG中 计算就出现这种情况 ===================== WARNING (from subroutine: MINVSQ) ======================
Division by zero in solver routine MINVSQ due to singular
matrix or matrix requiring pivoting -- divisor set to 1.0E-40. Please check data or call CMG.
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请问这是什么原因造成的 有什么补救的方法么