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Xamarin - binary line of XML file # 1: error inflating class <unknown>

I am currently developing a small Android application in Xamarin using C #.
When I start the emulator, the following appears on my emulator:
Screenshot of Xamarin error
This line of code is called when the first tab is selected, which by default means that this error occurs as soon as I start the program. The XML snippet that seems to be causing the error is that in one of my layout files:

android:background="@color/done"

111 Dialer.axml, . , , . , , button, . done.xml color:

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_focused="true" android:color="#ff2222ff"/>
    <item android:state_pressed="true" android:state_enabled="false" android:color="#ff4444ff"/>
    <item android:state_enabled="false" android:color="#ff000000"/>
    <item android:color="#ff0000ff"/>
</selector>

Dialer.axml:

<?xml version="1.0" encoding="utf-8"?>
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:minWidth="25px"
    android:minHeight="25px"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/tableLayout1"
    android:background="#2ec0ff">
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textSize="50sp"
        android:layout_marginBottom="40sp"
        android:id="@+id/number"
        android:editable="false"
        android:singleLine="true"
        android:scrollHorizontally="true"
        android:gravity="right"
        android:textColor="#fff" />
    <TableRow
        android:id="@+id/tableRow1"
        android:layout_weight="1">
        <Button
            android:text="1"
            android:layout_column="0"
            android:id="@+id/button1"
            android:layout_weight="1"
            android:layout_height="match_parent" />
        <Button
            android:text="2"
            android:layout_column="1"
            android:id="@+id/button2"
            android:layout_weight="1"
            android:layout_height="match_parent" />
        <Button
            android:text="3"
            android:layout_column="2"
            android:id="@+id/button3"
            android:layout_weight="1"
            android:layout_height="match_parent" />
    </TableRow>
    <TableRow
        android:id="@+id/tableRow2"
        android:layout_weight="1">
        <Button
            android:text="4"
            android:layout_column="0"
            android:id="@+id/button4"
            android:layout_weight="1"
            android:layout_height="match_parent" />
        <Button
            android:text="5"
            android:layout_column="1"
            android:id="@+id/button5"
            android:layout_weight="1"
            android:layout_height="match_parent" />
        <Button
            android:text="6"
            android:layout_column="2"
            android:id="@+id/button6"
            android:layout_weight="1"
            android:layout_height="match_parent" />
    </TableRow>
    <TableRow
        android:id="@+id/tableRow3"
        android:layout_weight="1">
        <Button
            android:text="7"
            android:layout_column="0"
            android:id="@+id/button7"
            android:layout_weight="1"
            android:layout_height="match_parent" />
        <Button
            android:text="8"
            android:layout_column="1"
            android:id="@+id/button8"
            android:layout_weight="1"
            android:layout_height="match_parent" />
        <Button
            android:text="9"
            android:layout_column="2"
            android:id="@+id/button9"
            android:layout_weight="1"
            android:layout_height="match_parent" />
    </TableRow>
    <TableRow
        android:id="@+id/tableRow4"
        android:layout_weight="1">
        <Button
            android:text="*"
            android:layout_column="0"
            android:id="@+id/buttonStar"
            android:layout_weight="1"
            android:layout_height="match_parent" />
        <Button
            android:text="0"
            android:layout_column="1"
            android:id="@+id/button0"
            android:layout_weight="1"
            android:layout_height="match_parent" />
        <Button
            android:text="#"
            android:layout_column="2"
            android:id="@+id/buttonPound"
            android:layout_weight="1"
            android:layout_height="match_parent" />
    </TableRow>
    <Button
        android:text="Done"
        android:id="@+id/buttonDone"
        android:background="@color/done"
        android:layout_width="match_parent"
        android:layout_height="80sp"
        android:textSize="35sp"
        android:layout_margin="5sp" />
</TableLayout>

? done.xml? ?

.

+1
1

done.xml - , . .

:

<?xml version="1.0" encoding="UTF-8" ?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_focused="true">
        <shape android:shape="rectangle">
            <solid android:color="#ff2222ff" /> 
        </shape>
    </item>
    <item android:state_pressed="true" android:state_enabled="false">
        <shape android:shape="rectangle">
            <solid android:color="#ff4444ff" /> 
        </shape>
    </item>
    <item android:state_enabled="false">
        <shape android:shape="rectangle">
            <solid android:color="#ff000000" /> 
        </shape>
    </item>
    <item>
        <shape android:shape="rectangle">
            <solid android:color="#ff0000ff" /> 
        </shape>
    </item>
</selector>

xml xml :

android:background="@drawable/done"

: ?

+2

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