No signature of method: startExistApplication(...)

I have a testing scenario.
Step 1: Open Setting app
Step 2: Click Network

I create a loop (10 times) for 2 step above.
I start app by AppiumDriverManager.createMobileDriver(…) then find object, click and open existing driver to open Setting app against.
But i get issue: No signature of method: startExistApplication(…)
ERROR: 2019-03-03 23:33:11.326 e[1;31mERRORe[0;39m e[36mk.k.c.m.CustomKeywordDelegatingMetaClass -e[0;39m e[31m❌ No signature of method: com.PreApplication.startExistApplication() is applicable for argument types: () values: e[0;39m
e[31mPossible solutions: startExistApplication(java.lang.String, java.lang.String, java.lang.String)
Can you help me fix it.
Thank you.

Hi @giaduy218,

It looks like you’re getting that error because the CustomKeyword you’ve defined, startExistApplication, takes 3 String parameters; mobileType, appPackage, and appActivity. In your test, you’re not passing any parameters to startExistApplication().

I’m guessing from the name of the Custom Keyword, these will be the values of the application you’re trying to test. If you pass those 3 parameters to startExistApplication, I think it will start working for you.

Hope this helps,