Depending on the complexity and stage of your program, the IDE can generate an overwhelming number of errors. But you can customize the Problems view so you'll see only the errors you want to see.
To access the error-filtering dialog, in the Problems view, click the Filter icon.
The Filters dialog lets you adjust the scope of the errors shown in the Problems view. The more options you select, the more errors and warnings the IDE displays in the Problems view.
The Filters dialog, where you can select what errors are displayed in the Problems view.