Red squiggles in code for basic C# Unity

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1

In Session 9. Introducing Variables, all my code in Visual studio has a red squiggly line underneath everything.
But the tutorial I’m watching on Udemy has none, even if i copied it exactly.

  1. What do the red squiggles mean?
  2. Should it be a concern? How do I figure out the meaning next time?
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    Screen Shot 2019-06-19 at 5.27.08 PM.png1168×930 131 KB
2

Hi,

This usually means that there is an error or a problem.

Please hover your mouse over NumberWizard, and then over MonoBehaviour. What does the compiler say?

Please watch lecture “Fixing Visual Studio Problems” (currently #16). If you use VS 2019, downgrade to 2017 because 2019 still has problems.

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