Problem:

I'm wondering why whenever I have an error while compiling my code, the error is shown multiple times like this screenshot:

I'm using JetBrains Rider, Thanks :)

Solution:

This can occur if you are multi-targeting, i.e. if you have something like:

in your project file. The build is per-target (because #if and project filters may change the active code on a per-target basis), and thus you can get repeated warnings. If you scroll to the right, you may find the target platforms specified near the end of the message. This can also apply to target platforms.

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