title: Why Android Studio is showing errors "everywhere in code" after last update?
body: <p>Yesterday I have updated my AndroidStudio IDE and after that I see strange error everywhere, even on fresh project:
  <a href="https://i.stack.imgur.com/QTOZh.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/QTOZh.png" alt="enter image description here" /></a></p>
  <p>there is also message:</p>
  <blockquote>
  <p>Cannot access 'android.app.Activity' which is a supertype of 'pl.testapp.MainActivity'. Check your module classpath for missing or conflicting dependencies. Cannot access 'java.lang.Object' which is a supertype of 'pl.testapp.MainActivity'. Check your module classpath for missing or conflicting dependencies.</p>
  </blockquote>
  <p>I can build project but writing code where everything is underlined is horrible ;p. I have already tried to reinstall IDE but with no result. Have you ever experienced that?</p>