unity导入fbx问题

筱筱

在unity中导入模型报错

transform.rotation assign attempt for "XXX" is not valid. Input rotation is {NaN, NaN, NaN}.

！IsFinite（OutDistanceAlongView）

transform.position assigin attempt for 'rooy（Clone）' is not calid.Input position is {NaN, NaN, NaN}.

bound.IsValid();

aabb.IsValid();

transform.position assign attempt for 'PreRenderCamera' is not Valid .Input position is  {NaN, NaN, NaN}.

还有个动画的报错，没记得。请问谁知道咋回事呢？