I am using another apk after that this issue "app-activity": Expected one argument. null

Issues/Bugs
1

sage: 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-activity”: Expected one argument. null

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