Appium eclipse 中运行 case， appium 服务器报下面的错误:
[MJSONWP] Encountered internal error running command: Error: Error executing adbExec. Original error: 'Command 'D:\android-sdk\platform-tools\adb.exe -P 5037 -s 3HX5T17114002385 install C:\Users\wuqs\AppData\Local\Programs\appium-desktop\resources\app\node_modules\appium\node_modules\appium-android-ime\bin\UnicodeIME-debug.apk' exited with code 1'; Stderr: 'adb: failed to install C:\Users\wuqs\AppData\Local\Programs\appium-desktop\resources\app\node_modules\appium\node_modules\appium-android-ime\bin\UnicodeIME-debug.apk: Failure [INSTALL_FAILED_UPDATE_INCOMPATIBLE: Package io.appium.android.ime signatures do not match the previously installed version; ignoring!]'; Code: '1'

请问是什么原因啊