Unable to launch appium server from m machine

Hi All,
Im unable to stat selenium server from my machine.

Im getting error as

Launching Appium server with command: C:\Program Files (x86)\Appium\node.exe lib\server\main.js --address 127.0.0.1 --port 4723 --app --avd Android --platform-name Android --platform-version 23 --automation-name Appium --log-no-color

usage: main.js [-h] [-v] [–shell]
[–localizable-strings-dir LOCALIZABLESTRINGSDIR] [–app APP]
[–ipa IPA] [-U UDID] [-a ADDRESS] [-p PORT]
[-ca CALLBACKADDRESS] [-cp CALLBACKPORT] [-bp BOOTSTRAPPORT]
[-k] [-r BACKENDRETRIES] [–session-override] [–full-reset]
[–no-reset] [-l] [-lt LAUNCHTIMEOUT] [-g LOG]
[–log-level {info,info:debug,info:info,info:warn,info:error,warn,warn:debug,warn:info,warn:warn,warn:error,error,error:debug,error:info,error:warn,error:error,debug,debug:debug,debug:info,debug:warn,debug:error}]
[–log-timestamp] [–local-timezone] [–log-no-colors]
[-G WEBHOOK] [–native-instruments-lib]
[–app-pkg ANDROIDPACKAGE] [–app-activity ANDROIDACTIVITY]
[–app-wait-package ANDROIDWAITPACKAGE]
[–app-wait-activity ANDROIDWAITACTIVITY]
[–android-coverage ANDROIDCOVERAGE] [–avd AVD]
[–avd-args AVDARGS]
[–device-ready-timeout ANDROIDDEVICEREADYTIMEOUT] [–safari]
[–device-name DEVICENAME] [–platform-name PLATFORMNAME]
[–platform-version PLATFORMVERSION]
[–automation-name AUTOMATIONNAME] [–browser-name BROWSERNAME]
[–default-device] [–force-iphone] [–force-ipad]
[–language LANGUAGE] [–locale LOCALE]
[–calendar-format CALENDARFORMAT] [–orientation ORIENTATION]
[–tracetemplate AUTOMATIONTRACETEMPLATEPATH]
[–instruments INSTRUMENTSPATH] [–show-sim-log]
[–show-ios-log] [–nodeconfig NODECONFIG] [-ra ROBOTADDRESS]
[-rp ROBOTPORT] [–selendroid-port SELENDROIDPORT]
[–chromedriver-port CHROMEDRIVERPORT]
[–chromedriver-executable CHROMEDRIVEREXECUTABLE]
[–use-keystore] [–keystore-path KEYSTOREPATH]
[–keystore-password KEYSTOREPASSWORD] [–key-alias KEYALIAS]
[–key-password KEYPASSWORD] [–show-config] [–no-perms-check]
[–command-timeout DEFAULTCOMMANDTIMEOUT] [–keep-keychains]
[–strict-caps] [–isolate-sim-device] [–tmp TMPDIR]
[–trace-dir TRACEDIR] [–intent-action INTENTACTION]
[–intent-category INTENTCATEGORY] [–intent-flags INTENTFLAGS]
[–intent-args OPTIONALINTENTARGUMENTS]
[–dont-stop-app-on-reset] [–debug-log-spacing]
[–suppress-adb-kill-server] [–async-trace]

main.js: error: argument “–app”: Expected one argument. null

Appium server process ended

Similar thread was discussed before. But i couldn’t see any solution for that. Could you friends please help me in resolving this issue.

Thanks in Advance.

How about adding an argument to app instead of nothing? The error you are getting is perfectly valid.

It worked fine now for me Wreed. Now my appium server got launched.