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You can right-click on the console tab and select “Close Tab”. But you should probably read those errors at some point.
I can’t… I have is “NullReferenceException: Object reference not set to an instance of an object”. I don’t know where the error is coming from.
You may be looking for try … catch here. If the error is something that you expect to happen sometimes, you will want to enclose that block of code in try { code } catch (Exception e) { } so that the error doesn’t bring the rest of your scripts to a grinding halt. This is common practice during things like loading saved games from files, since you never know when you’re going to receive a bad file.
However - and this is a crucial “however” - if you don’t know what’s causing them and/or didn’t expect the errors - do not do that because these errors are a good thing. They give you vital information for how to fix the problem.
If you double-click on the error, it’ll open your code editing application at the exact line that is causing the error. If you need more information than that, click on the error, you’ll see underneath it a “stack trace”, which shows the script files and line numbers of every function call that led to this error.