Git conflicts causes Storyboard problems

Question

I've tried merging two branches on my Git repository and some conflicts occurred on my Storyboard file. Here are the conflicted lines:

    <resources>
        <image name="IconAddToCart" width="30" height="34"/>
<<<<<<< HEAD
        <image name="IconAddToCart" width="30" height="34"/>
=======
        <image name="IconCartBig" width="149" height="111"/>
>>>>>>> 0133fd1364e6e590034bba1c0e32273bcf22a3d2
        <image name="IconCheckmark" width="13" height="13"/>
        <image name="LoginBackground" width="320" height="568"/>
        <image name="LoginBackground" width="320" height="568"/>
        <image name="LoginLogo" width="257" height="73"/>
        <image name="ScanButton" width="178" height="61"/>
    </resources>
    <color key="tintColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
    <simulatedMetricsContainer key="defaultSimulatedMetrics">
        <simulatedStatusBarMetrics key="statusBar"/>
        <simulatedOrientationMetrics key="orientation"/>
        <simulatedScreenMetrics key="destination" type="retina4"/>
    </simulatedMetricsContainer>
    <inferredMetricsTieBreakers>
        <segue reference="rCk-dF-YMq"/>
        <segue reference="SKx-bH-AaC"/>
        <segue reference="ofx-gD-lnj"/>
        <segue reference="Eo1-ee-RYE"/>
        <segue reference="mb5-Kc-qz1"/>
        <segue reference="qYH-kM-beE"/>
        <segue reference="QOW-kb-Y6W"/>
<<<<<<< HEAD
        <segue reference="vKq-do-lYa"/>
=======
        <segue reference="CgX-ql-qnP"/>
        <segue reference="gwc-Z9-zHd"/>
>>>>>>> 0133fd1364e6e590034bba1c0e32273bcf22a3d2
    </inferredMetricsTieBreakers>

I've tried fixing the conflicts by removing the lines of code that are duplicated and and removing the conflict marks, and this is how that part of the file looks now:

<resources>
    <image name="IconAddToCart" width="30" height="34"/>
    <image name="IconCartBig" width="149" height="111"/>
    <image name="IconCheckmark" width="13" height="13"/>
    <image name="LoginBackground" width="320" height="568"/>
    <image name="LoginBackground" width="320" height="568"/>
    <image name="LoginLogo" width="257" height="73"/>
    <image name="ScanButton" width="178" height="61"/>
</resources>
<color key="tintColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
<simulatedMetricsContainer key="defaultSimulatedMetrics">
    <simulatedStatusBarMetrics key="statusBar"/>
    <simulatedOrientationMetrics key="orientation"/>
    <simulatedScreenMetrics key="destination" type="retina4"/>
</simulatedMetricsContainer>
<inferredMetricsTieBreakers>
    <segue reference="rCk-dF-YMq"/>
    <segue reference="SKx-bH-AaC"/>
    <segue reference="ofx-gD-lnj"/>
    <segue reference="Eo1-ee-RYE"/>
    <segue reference="mb5-Kc-qz1"/>
    <segue reference="qYH-kM-beE"/>
    <segue reference="QOW-kb-Y6W"/>
    <segue reference="vKq-do-lYa"/>
    <segue reference="CgX-ql-qnP"/>
    <segue reference="gwc-Z9-zHd"/>
</inferredMetricsTieBreakers>

Even after that, the compiler still gives me the following error: The document "Main.storyboard"could not be opened. The operation couldn't be completed. (com.apple.InterfaceBuilder error -1.)

What can be the cause of the error, if I've already removed those lines?

Answer 1

This line is duplicated:

<image name="LoginBackground" width="320" height="568"/>

Xcode 5 can repair this (and tells you that this could have happened because of SCM merging), but maybe you use an older version of Xcode which probably can't fix this.