这是什么错误？

原理图生成网表时候的错误：
Schematic Connectivity Errors
-----------------------------
Power or Ground Symbols used with wrong Net Name
+3.3V
DM642CONFIGX5900Y9300- PowerSymbol used for net: +5V
DM642CONFIGX4400Y9500- PowerSymbol used for net: +5V
DM642CONFIGX4400Y8400- PowerSymbol used for net: +5V
DM642CONFIGX4400Y7200- PowerSymbol used for net: +5V
DM642CONFIGX4400Y6000- PowerSymbol used for net: +5V
DM642CONFIGX4400Y4900- PowerSymbol used for net: +5V
DM642CONFIGX4400Y3800- PowerSymbol used for net: +5V
DM642CONFIGX1440Y1660- PowerSymbol used for net: +5V
DM642CONFIGX4600Y1940- PowerSymbol used for net: +5V
DM642CONFIGX4900Y1940- PowerSymbol used for net: +5V
DM642CONFIGX5200Y1940- PowerSymbol used for net: +5V
DM642CONFIGX5500Y1940- PowerSymbol used for net: +5V
DM642CONFIGX10700 Y9740- PowerSymbol used for net: +5V
DM642CONFIGX10380 Y9740- PowerSymbol used for net: +5V
DM642CONFIGX12040 Y6040- PowerSymbol used for net: +5V
SDRAMX10960 Y8360- PowerSymbol used for net: +5V
SDRAMX10960 Y6160- PowerSymbol used for net: +5V
FLASHX7660Y5000- PowerSymbol used for net: +5V
POWERX9200Y5100- PowerSymbol used for net: +5V

网络出问题了

要怎么解决呢？

这个是可以忽略的警告。
电源符号在库里面是+5v,然后你是将它在原理图中改为+3.3v.
可以忽略。
解决方法：是在库里新建一个+3.3V的电源符号，以后原理图中凡是+3.3v网络的就用此符号。