我使用QuickBlox在我的聊天应用程序中发送图像。该场景是用户首先将其上传到QuickBlox服务器的图像发送给其他用户,然后将该消息发送给其他用户。在发送消息我随机得到这个错误有时它不显示此错误:在聊天QuickBlox中发送图像时获取随机空指针?
java.lang.NullPointerException
at org.jivesoftware.smack.util.LazyStringBuilder.length(LazyStringBuilder.java:72)
at org.jivesoftware.smack.util.XmlStringBuilder.length(XmlStringBuilder.java:212)
at org.jivesoftware.smack.util.LazyStringBuilder.length(LazyStringBuilder.java:72)
at org.jivesoftware.smack.util.XmlStringBuilder.length(XmlStringBuilder.java:212)
at org.jivesoftware.smack.util.LazyStringBuilder.length(LazyStringBuilder.java:72)
at org.jivesoftware.smack.util.LazyStringBuilder.toString(LazyStringBuilder.java:100)
at org.jivesoftware.smack.util.XmlStringBuilder.toString(XmlStringBuilder.java:227)
at org.jivesoftware.smack.tcp.PacketWriter.writePackets(PacketWriter.java:163)
at org.jivesoftware.smack.tcp.PacketWriter.access$000(PacketWriter.java:40)
at org.jivesoftware.smack.tcp.PacketWriter$1.run(PacketWriter.java:77)
请帮助。
为什么上帝为什么..... –
你可以发布你的代码 –