Android设备选择器无法显示我的真实设备。 但设备管理员认识到我使用Eclipse Juno，Windows 7和我的设备nexus 7，我已经尝试过命令：adb kill server并更新usb驱动程序。
答案 0 :(得分：0)
请更新谷歌USB驱动程序。
链接：http://developer.android.com/tools/extras/oem-usb.html
此链接有助于解决问题。
Connect your Android-powered device to your computer's USB port.
Right-click on Computer from your desktop or Windows Explorer, and select Manage.
Select Device Manager in the left pane of the Computer Management window.
Locate and expand Android Phone in the right pane.
Right-click Android Composite ADB Interface and select Update Driver. This will launch the Hardware Update Wizard.
Select Install from a list or specific location and click Next.
Select Search for the best driver in these locations; un-check Search removable media; and check Include this location in the search.
Click Browse and locate the USB driver folder. (The Google USB Driver is located in <sdk>\extras\google\usb_driver\.)
Click Next to upgrade the driver.