Android layout error: "Resource id <res_id> is not of type STYLE (instead attr)"

Question

I'm seeing an error I've never seen before w/ Android that's preventing some of my layout files from rendering in Eclipse. They render fine at runtime.

The error that shows up in the graphical layout editor (and my Error log) is: "Resouce id 0x1010081 is not of type STYLE (instead attr)"

I've searched for resource id 0x1010081 in my R files, and I can't find it so I'm guessing maybe somehow I have a conflict with a built in Android attr. I've also verified that all of my style attributes below point to actual styles and not attr. Any help appreciated.

Here's my full layout code:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/bkg_light"
    android:padding="@dimen/padding_med" >

    <RelativeLayout
        android:id="@+id/relativeLayout_activity"
        android:layout_width="fill_parent"
        android:layout_height="@dimen/button_height"
        android:background="@drawable/xml_button"
        android:padding="@dimen/padding_med" >

        <TextView            
            style="@style/text_large_bold_white"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:layout_centerVertical="true"
            android:text="@string/activity" />

        <TextView
            android:id="@+id/textView_activity"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerVertical="true"
            android:layout_marginRight="@dimen/margin_med"
            android:layout_toLeftOf="@+id/textView_arrow_right_start_date" 
            android:text="@string/none_selected"/>

        <TextView
            android:id="@+id/textView_arrow_right_start_date"
            style="@style/arrow_right"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentRight="true"
            android:layout_centerVertical="true" />
    </RelativeLayout>

    <!-- kv Duration -->

    <RelativeLayout
        android:id="@+id/relativeLayout_duration"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/relativeLayout_activity"
        android:layout_marginTop="@dimen/margin_large"
        android:background="@drawable/xml_button">

        <TextView
            android:id="@+id/textView_duration"
            style="@style/text_large_bold_white"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:layout_centerVertical="true"
            android:text="@string/duration_lc" 
            android:paddingLeft="@dimen/padding_med"/>

        <Spinner
            android:id="@+id/spinner_duration"
            android:layout_width="wrap_content"
            android:layout_height="@dimen/button_height"
            android:layout_alignParentRight="true"
            android:entries="@array/array_durations"
            android:prompt="@string/duration_lc"
            android:spinnerMode="dropdown" 
            android:clickable="false"/>
    </RelativeLayout>

</RelativeLayout>

And here's my styles.xml:

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <style name="arrow_right">
        <item name="android:textStyle">bold</item>
        <item name="android:textSize">@dimen/text_xxlarge</item>
        <item name="android:text">@string/arrow_right</item>
    </style>

    <style name="button_blue">
        <item name="android:textStyle">bold</item>
        <item name="android:textColor">@color/white</item>
        <item name="android:background">@drawable/selector_button_blue</item>
        <item name="android:padding">@dimen/padding_med</item>
    </style>

    <style name="button_blue_small">
        <item name="android:textStyle">bold</item>
        <item name="android:textColor">@color/white</item>
        <item name="android:background">@drawable/selector_button_blue_small</item>
        <item name="android:padding">@dimen/padding_med</item>
    </style>

    <style name="button_dark">
        <item name="android:textStyle">bold</item>
        <item name="android:textColor">@color/white</item>
        <item name="android:background">@drawable/selector_button_dark</item>
        <item name="android:padding">@dimen/padding_med</item>
    </style>

    <style name="button_light">
        <item name="android:textStyle">bold</item>
        <item name="android:textColor">@color/black</item>
        <item name="android:background">@drawable/selector_button_light</item>
        <item name="android:padding">@dimen/padding_med</item>
    </style>

    <style name="button_light_small">
        <item name="android:textStyle">bold</item>
        <item name="android:textColor">@color/black</item>
        <item name="android:textSize">@dimen/text_small</item>
        <item name="android:background">@drawable/selector_button_light</item>
        <item name="android:padding">@dimen/padding_small</item>
    </style>  

    <style name="text_small_gray_light">
        <item name="android:textSize">@dimen/text_small</item>
        <item name="android:textColor">@color/gray_light</item>
    </style>

    <style name="text_med_bold_gray_light">
        <item name="android:textStyle">bold</item>
        <item name="android:textSize">@dimen/text_med</item>
        <item name="android:textColor">@color/gray_light</item>
    </style>    

    <style name="text_large_bold_white">
        <item name="android:textStyle">bold</item>
        <item name="android:textSize">@dimen/text_large</item>
    </style>

    <style name="text_large_bold_black">
        <item name="android:textStyle">bold</item>
        <item name="android:textSize">@dimen/text_large</item>
        <item name="android:textColor">@color/black</item>
    </style>

    <style name="text_large_bold_gray_dark">
        <item name="android:textStyle">bold</item>
        <item name="android:textSize">@dimen/text_large</item>
        <item name="android:textColor">@color/gray_dark</item>
    </style>

    <style name="text_large_bold_gray_light">
        <item name="android:textStyle">bold</item>
        <item name="android:textSize">@dimen/text_large</item>
        <item name="android:textColor">@color/gray_light</item>
    </style>

    <style name="text_large_bold_white">
        <item name="android:textStyle">bold</item>
        <item name="android:textSize">@dimen/text_large</item>
        <item name="android:textColor">@color/white</item>
    </style>

    <style name="text_large_white">
        <item name="android:textSize">@dimen/text_large</item>
        <item name="android:textColor">@color/white</item>
    </style>
</resources>

And here's my custom theme.xml:

<?xml version="1.0" encoding="utf-8"?>
<resources xmlns:android="http://schemas.android.com/apk/res/android">
    <style name="Theme.P90X" parent="@style/Theme.Sherlock">
        <item name="android:textColor">#ffffffff</item>
    </style>
</resources>

Answer 1

I also have this problem, with the same resource ID showing up. It disappears when I change android:spinnerMode to "dialog" so I suspect it's not a problem with your code.

The id in question refers to the android attribute spinnerStyle. See the doc for R.attr

I found a workaround, namely replace

android:spinnerMode="dropdown"

with

android:spinnerStyle="@android:style/Widget.Spinner.DropDown".