I am new in mobile automation tests. I am trying to select an element of an XCUIElementTypePickerWheel. Here is what I did:

screen.js

    selectCountry(country) {
            return -ios predicate string:type=='XCUIElementTypePickerWheel' AND value=='${country}';
            
         }

action_words.js

    iSelectCountry: async function (country) {
            let selector = Screen.selectCountry(country);
            let Country = await $(selector);
            browser.execute("mobile: scroll", [{direction: "down", element: Country}]) //scroll to the element to click
            await Country.click(); },

step_definitions.js

    When(/^I select a country "(.*)"$/, async function (country) {
        await action_words.iSelectCountry(country);
    });

And here is what I get:

Error: Can't call click on element with selector "-ios predicate string:type=='XCUIElementTypePickerWheel' AND value=='Espagne'" because element wasn't found

I am using appium 1.20.2 Node 14.16.0 wdio/cli": "^7.7.3"

Does anyone have an idea why I get this error please? My dropdown list look like this: dropdown list

Thank you for your help