when I configured my Eclipse with ADT and SDK, I created a new android project, and then I right click the project name and select the Run As -> Android Application, but I got the error message in the console like this:
[2011-07-25 19:11:01 - Android] ------------------------------
[2011-07-25 19:11:01 - Android] Android Launch!
[2011-07-25 19:11:01 - Android] adb is running normally.
[2011-07-25 19:11:01 - Android] Performing com.android.Activity01 activity launch
[2011-07-25 19:11:01 - Android] Automatic Target Mode: launching new emulator with compatible AVD '2.1'
[2011-07-25 19:11:01 - Android] Launching a new emulator with Virtual Device '2.1'
[2011-07-25 19:11:01 - Emulator] invalid command-line parameter: by.
[2011-07-25 19:11:01 - Emulator] Hint: use '@foo' to launch a virtual device named 'foo'.
[2011-07-25 19:11:01 - Emulator] please use -help for more information
so, how can I fix this problem?