No Resource found that matches the given name Xamarin Android

Question

I always get the error "No Resource found that matches the given name" in my themes.xml file no matter which resource I use or in which I use it. Even if the resource works everywhere else.

Here's some code:

    <?xml version="1.0" encoding="utf-8"?>
<resources>
    <!-- the theme applied to the application or activity -->
    <style name="Theme" parent="@android:style/Theme.Holo.Light.DarkActionBar">
        <item name="android:actionBarStyle">@style/ActionBarStyle</item>
        <item name="android:actionOverflowButtonStyle">@style/ActionBarOverflowStyle</item>
    </style>

    <!-- ActionBar styles -->
    <style name="ActionBarStyle" parent="@android:style/Widget.Holo.Light.ActionBar.Solid.Inverse">
        <item name="android:background">#008A3D</item>
    </style>

    <style name="ActionBarOverflowStyle" parent="@android:style/Widget.Holo.ActionButton.Overflow">
        <item name="android:src">@drawable/OverflowIcon</item>
    </style>


    <!--Dialog styles-->
    <style name="DialogStyle" parent="@android:style/Widget.Holo.Light.ActionBar.Solid.Inverse">
        <item name="android:background">#008A3D</item>
    </style>
</resources>

I deleted the item node to check whether I can use the resource in code. Proof that it worked; No error:

Answer 1

After googling and fiddling around for a few more hours I figured out that the problem was due to the fact that I use uppercase characters in the file name which works fine everywhere else. This is either a terrible behavior of Android or a bug in Xamarin.

Answer 2

For anyone else that finds this question for different reasons:

Whenever I Copy or Rename a drawable resource in VS 2017, it changes the 'Build Action'.

Double check your resources, and ensure the Build Action is set correctly. In my case, it needed to be 'AndroidResource'