'error: The element type 'Set<Marker>' can't be assigned to the set type 'Marker'

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I am trying to place a marker for two purposes:

Live geolocation tracking.
Showing multiple markers stored in the firebase database.

so inside google map widget I tried:

 markers:{
    Set<Marker>.of(((marker != null) ? [marker] : [])), //This one for live geotracking
    Set<Marker>.of(markers.values), // markers stored in database
    },

How can I fix this?

flutter dart

Solution 1:^[1]

I think the problem is in your check "marker != null" Since marker is a set, you should check instead for "marker !={}"

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Solution 1	Alfredowitch

'error: The element type 'Set<Marker>' can't be assigned to the set type 'Marker'

Solution 1:[1]

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Related Questions

Solution 1:^[1]