URL（fileURLWithPath：Bundle.main.path（forResource：“ ports”，ofType：“ geojson”）！）是零吗？

Question

The bellow line returns nil when I run the line in the app (thus making the app crash). This line of code comes from mapboxes example here on grouping.

let url = URL(fileURLWithPath: Bundle.main.path(forResource: "ports", ofType: "geojson")!)

I implemented that this link which they recommend adding: link And add it to the project as follows:

What am I doing wrong and how can I fix this?

Answer 1

If this

Bundle.main.path(forResource: "ports", ofType: "geojson")!

crashes this means you need to check target membership of this file

for tracking

if let file = Bundle.main.path(forResource: "ports", ofType: "geojson") {
     let url = URL(fileURLWithPath:file)
}
else { 
    print("Not exists")
}

so select the file and tick