allegro下放元件时遇到问题，请各位大虾指点

allegro下放元件时遇到以下问题，无法放置成功，请问是什么原因

WARNING: Could not place:  J502 / SODIMM_SODIMM200_1_SODIMM / SODIMM200_1; outside of drawing extents
WARNING: Could not fit symbol:  U900 / MCP2515_1_TSSOP20_1_MCP2515 / TSSOP20_1

顶,,,,,,,,,,,,,