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@allegro进行BGA fanout时报错，错误信息：
(SPMHA1-78): Via is outside of the extents.
(SPMHA1-68): Line segments are outside of the extents.
(SPMHA1-78): Via is outside of the extents.
(SPMHA1-68): Line segments are outside of the extents.
(SPMHA1-78): Via is outside of the extents.
(SPMHA1-68): Line segments are outside of the extents.
(SPMHA1-78): Via is outside of the extents.
(SPMHA1-68): Line segments are outside of the extents.
(SPMHA1-78): Via is outside of the extents.
(SPMHA1-68): Line segments are outside of the extents.
(SPMHA1-78): Via is outside of the extents.
(SPMHA1-68): Line segments are outside of the extents.
(SPMHA1-78): Via is outside of the extents.
(SPMHA1-68): Line segments are outside of the extents.
(SPMHA1-78): Via is outside of the extents.
(SPMHA1-68): Line segments are outside of the extents.
(SPMHA1-78): Via is outside of the extents.
(SPMHA1-68): Line segments are outside of the extents.

有人知道什么原因吗？