Problems

This tool window is part of the standard equipment of the IntelliJ IDEA platform Studio is based upon, so please refer to its online documentation for more information.

Here it must be said that any typos reported do not necessarily need to be corrected, because they refer to the text of test documents which could have been originated with such misspellings, the correction of which could have unwanted effects on tests.
This tool window may also reports anomalies in the source code, but for this type of issues first look at the Output panel of the Console tool window, where all the build errors are reported.