I just got so irritated with Visual Studio that I had to find a way to turn off the dreadful "Error List" it shows to summarise the failures in a build - it does not show entire errors, they are in the wrong order (the worst of all its deficiencies) and it just misleads and misdirects when you are trying to locate the real reason a build failed. I don't think I have ever come across an occasion in which it was ever "better" then just looking at the first error reported in the Output tab from the build. So in VS2017 the way you switch it off is:
Because it is so similar, AS7 has an almost identical thing:
If you value your sanity I would highly recommend you un-tick this !!