ITMS-90704: Missing App Icon - An app icon measuring 1024 by 1024 pixels in PNG format must be included in the Asset Catalog of apps built for iOS, iPadOS, or watchOS.

The error message you are getting is because the App Store requires that all iOS apps have a 1024x1024 PNG app icon in their Asset Catalog. The SVG icon you are using is not the correct size, so you will need to convert it to a PNG and resize it to 1024x1024.

There are a few different ways to convert an SVG to a PNG. One way is to use an online converter, such as this one: https://convertio.co/svg-png/. Another way is to use a software application, such as Inkscape: https://inkscape.org/.

Once you have converted the SVG to a PNG, you will need to resize it to 1024x1024. You can do this using a graphics editor, such as GIMP: https://www.gimp.org/.

Once the PNG is resized, you will need to add it to the Asset Catalog of your app. You can do this by opening the Asset Catalog in Xcode and dragging the PNG file into the catalog.

Once the PNG is added to the Asset Catalog, you should be able to upload your IPA without any errors.

Here are the steps in detail:

1. Convert the SVG icon to a PNG.
2. Resize the PNG to 1024x1024.
3. Add the PNG to the Asset Catalog of your app.
4. Upload your IPA.

I hope this helps! Let me know if you have any other questions.