My problem is that after installing and updating Android Studio, I see an error in the design tab that does not let me see the appearance of the app or the changes I made to it.
PC specifications:
Intel i3 2328m 4 gb Ram Window 10 Home 64 Bits
Those are the errors that the design tab shows me
This comes to me when trying to download what the Android Studio asks for
What you can do is change within /res/values/styles.xml
this
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
</style>
for this
<style name="AppTheme" parent="Base.Theme.AppCompat.Light.DarkActionBar">
</style>
The problem is in the buildTools and support library appCompat versions that you use
You can also try on the gradle to change your appCompat for this
implementation 'com.android.support:appcompat-v7:26.0.0'
and use the buildToolsVersion
buildToolsVersion '26.0.0'
With these changes you should solve your problem, try the first one and if the second does not work