I am intented to write `Iniciar sesión`, but the `ó` not working. For this reason I changed to `&oacute;` but is another error.

```
<TextView
    android:id="@+id/textView"
    android:layout_width="330dp"
    android:layout_height="24dp"
    android:text="Inicio de sesi&oacute;n"
    tools:layout_editor_absoluteX="27dp"
    tools:layout_editor_absoluteY="28dp" />

```

¿I must configure Android Studio?

I added `compileOptions.encoding "ISO-8859-1"` in `build.gradle` but the error persist.

Help me, please.

Thank you!