network-manager can detect wifi signal but can't connect in Kubuntu Netbook desktop, Marshalling failed

[蒙笛Mengdi]

I install Ubuntu13.10 and Kubuntu13.10 in my netbook( fepad1090)

in Ubuntu13.10 the wireless network works well.

but in Kubuntu13.10 (0902 dailybuild), the system can detect the wifi signal ,but can't connect at all.

when i select the wifi ssid in system setting>network setting ,the following error appears:

Failed to activate network MYSSID:
Marshalling failed:Unregistered type NMVariantMapMap passed in arguments

i used a fenix fepad1090
cpu:atom z670,

wireless card: Marvell avatar sd8787 Wireless LAN SDIO Adapter
inside.

when i type ifconfig,it seems like has not different with what i get in Ubuntu13.10

kubuntu

:~$ ifconfig
lo Link encap:Local Loopback
          inet addr:127.0.0.1 Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING MTU:65536 Metric:1
          RX packets:34 errors:0 dropped:0 overruns:0 frame:0
          TX packets:34 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:2580 (2.5 KB) TX bytes:2580 (2.5 KB)

mlan0 Link encap:Ethernet HWaddr 74:2f:68:aa:6f:34
          inet6 addr: fe80::762f:68ff:feaa:6f34/64 Scope:Link
          UP BROADCAST MULTICAST MTU:1500 Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:26 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

ubuntu

:ifconfig
lo Link encap:本地环回
          inet 地址:127.0.0.1 掩码:255.0.0.0
          inet6 地址: ::1/128 Scope:Host
          UP LOOPBACK RUNNING MTU:65536 跃点数:1
          接收数据包:32 错误:0 丢弃:0 过载:0 帧数:0
          发送数据包:32 错误:0 丢弃:0 过载:0 载波:0
          碰撞:0 发送队列长度:0
          接收字节:2933 (2.9 KB) 发送字节:2933 (2.9 KB)

mlan0 Link encap:以太网 硬件地址 74:2f:68:aa:6f:34
          inet 地址:192.168.1.3 广播:192.168.1.255 掩码:255.255.255.0
          inet6 地址: fe80::762f:68ff:feaa:6f34/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST MTU:1500 跃点数:1
          接收数据包:37 错误:0 丢弃:0 过载:0 帧数:0
          发送数据包:105 错误:12 丢弃:0 过载:0 载波:0
          碰撞:0 发送队列长度:1000
          接收字节:13168 (13.1 KB) 发送字节:16693 (16.6 KB)

[蒙笛Mengdi (yuzh652800)]

now ,after i install the latest daily build ,the bug seems disapper, the wifi works well.