新手请教元件放置问题

原理图设计完之后，导出到PCB中，进行元件放置，手动放置可以，使用Quick Place命令不行，老是报错，错误如下：
)
( QUICKPLACE LOG )
( )
( Drawing : demo.brd )
( Software Version : 15.51p006 )
( Date/Time : Tue May 27 17:13:46 2008 )
( )
(------------------------------------------------------------)


Placed 0 of 0 applicable (5 total) symbols.
-----------------------------------------------------------------------

Placed 0 of 0 applicable (5 total) symbols.
-----------------------------------------------------------------------
WARNING: Could not fit symbol: C1 / CAPACITOR / DIPCAP
WARNING: Could not fit symbol: C2 / CAPACITOR / DIPCAP
WARNING: Could not place: C3 / CAPACITOR / DIPCAP; outside of drawing extents
WARNING: Could not place: C4 / CAPACITOR / DIPCAP; outside of drawing extents
WARNING: Could not place: C5 / CAPACITOR / DIPCAP; outside of drawing extents

Placed 0 of 5 applicable (5 total) symbols.
我电路中就是五个电容，是软件自带的库中的元件，请问这是什么原因啊？