Theme based on version

Generating R file.                      Error
AndroidManifest.xml:15: error: Error: No resource found that matches the given name (at 'theme' with value '@android:style/MyTheme').
AndroidManifest.xml:19: error: Error: No resource found that matches the given name (at 'theme' with value '@android:style/MyThemeNoTitle').
AndroidManifest.xml:32: error: Error: No resource found that matches the given name (at 'theme' with value '@android:style/MyThemeTransparent').
AndroidManifest.xml:40: error: Error: No resource found that matches the given name (at 'theme' with value '@android:style/MyThemeTransparent').
AndroidManifest.xml:55: error: Error: No resource found that matches the given name (at 'theme' with value '@android:style/MyThemeTransparent').

SetActivityAttribute(Person, android:theme, @android:style/MyThemeTransparent)
SetActivityAttribute(Present, android:theme, @android:style/MyThemeTransparent)
SetActivityAttribute(EventDetail, android:theme, @android:style/MyThemeTransparent)
SetActivityAttribute(Main, android:theme, @android:style/MyThemeNoTitle)
SetApplicationAttribute(android:theme, @android:style/MyTheme)

<?xml version="1.0" encoding="utf-8"?>

<resources>
    <style 
        name="MyTheme" parent="android:style/Theme.Light"> 'Also tried with @'s. i.e @android:style/Theme.Light
    </style>

    <style 
        name="MyThemeNoTitle" parent="android:style/Theme.Light.NoTitleBar">
    </style>

    <style 
        name="MyThemeTransparent" parent="android:style/Theme.Translucent.NoTitleBar">
    </style>
</resources>

<?xml version="1.0" encoding="utf-8"?>

<resources>
    <style 
        name="MyTheme" parent="@android:style/Theme.Holo.Light">
    </style>

    <style 
        name="MyThemeNoTitle" parent="@android:style/Theme.Holo.Light.NoActionBar">
    </style>

    <style 
        name="MyThemeTransparent" parent="@android:style/Theme.Holo.Light.Panel">
    </style>
</resources>