objective-c - "Failed to unarchive element named UITableViewController"

Question

我一直在按照“构建你的第二个 iOS 应用程序”教程一步一步进行操作，在教程 promise 所有错误都会消失之后我遇到了这个错误，但错误直到其他错误都已更正，我尝试编译它。

错误:

The document "MainStoryboard_iPhone.storyboard" could not be opened. Failed to unarchive element named "UITableViewController".

这是 tutorial 的链接.

这是我的 XML 格式的 Storyboard

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="1.1" toolsVersion="2182" systemVersion="11D50" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" initialViewController="3">
<dependencies>
    <deployment defaultVersion="1296" identifier="iOS"/>
    <development defaultVersion="4200" identifier="xcode"/>
    <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="1179"/>
</dependencies>
<scenes>
    <!--Navigation Controller-->
    <scene sceneID="11">
        <objects>
            <placeholder placeholderIdentifier="IBFirstResponder" id="10" sceneMemberID="firstResponder"/>
            <navigationController id="3" sceneMemberID="viewController">
                <navigationBar key="navigationBar" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="scaleToFill" id="4">
                    <autoresizingMask key="autoresizingMask"/>
                </navigationBar>
                <connections>
                    <segue destination="12" kind="relationship" relationship="rootViewController" id="19"/>
                </connections>
            </navigationController>
        </objects>
        <point key="canvasLocation" x="-1" y="64"/>
    </scene>
    <!--Hello World Master View Controller - Master-->
    <scene sceneID="18">
        <objects>
            <placeholder placeholderIdentifier="IBFirstResponder" id="17" sceneMemberID="firstResponder"/>
            <tableViewController storyboardIdentifier="" title="Master" id="12" customClass="HelloWorldMasterViewController" sceneMemberID="viewController">
                <tableView key="view" opaque="NO" clipsSubviews="YES" clearsContextBeforeDrawing="NO" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" rowHeight="44" sectionHeaderHeight="22" sectionFooterHeight="22" id="13">
                    <rect key="frame" x="0.0" y="64" width="320" height="416"/>
                    <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                    <color key="backgroundColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
                    <prototypes>
                        <tableViewCell contentMode="scaleToFill" selectionStyle="blue" accessoryType="disclosureIndicator" hidesAccessoryWhenEditing="NO" indentationLevel="1" indentationWidth="0.0" reuseIdentifier="BirdSightingCell" textLabel="phq-AM-6qj" detailTextLabel="d2j-B0-0IP" style="IBUITableViewCellStyleSubtitle" id="lJ0-d7-vTF">
                            <rect key="frame" x="0.0" y="22" width="320" height="44"/>
                            <autoresizingMask key="autoresizingMask"/>
                            <view key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center">
                                <rect key="frame" x="0.0" y="0.0" width="300" height="43"/>
                                <autoresizingMask key="autoresizingMask"/>
                                <subviews>
                                    <label opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="left" text="Bird Sightings" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" id="phq-AM-6qj">
                                        <rect key="frame" x="10" y="2" width="123" height="22"/>
                                        <autoresizingMask key="autoresizingMask"/>
                                        <fontDescription key="fontDescription" type="boldSystem" pointSize="18"/>
                                        <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
                                        <color key="highlightedColor" red="1" green="1" blue="1" alpha="1" colorSpace="calibratedRGB"/>
                                    </label>
                                    <label opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="left" text="Subtitle" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" id="d2j-B0-0IP">
                                        <rect key="frame" x="10" y="24" width="47" height="18"/>
                                        <autoresizingMask key="autoresizingMask"/>
                                        <fontDescription key="fontDescription" type="system" pointSize="14"/>
                                        <color key="textColor" red="0.50196078431372548" green="0.50196078431372548" blue="0.50196078431372548" alpha="1" colorSpace="calibratedRGB"/>
                                        <color key="highlightedColor" red="1" green="1" blue="1" alpha="1" colorSpace="calibratedRGB"/>
                                    </label>
                                </subviews>
                                <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="calibratedWhite"/>
                            </view>
                            <color key="backgroundColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
                            <connections>
                                <segue destination="21" kind="push" identifier="ShowSightingDetails" id="w1o-hR-DXB"/>
                            </connections>
                        </tableViewCell>
                    </prototypes>
                    <sections/>
                    <connections>
                        <outlet property="dataSource" destination="12" id="16"/>
                        <outlet property="delegate" destination="12" id="15"/>
                    </connections>
                </tableView>
                <navigationItem key="navigationItem" title="Bird Sightings" id="36"/>
            </tableViewController>
        </objects>
        <point key="canvasLocation" x="459" y="64"/>
    </scene>
    <!--Hello World Detail View Controller - Detail-->
    <scene sceneID="24">
        <objects>
            <placeholder placeholderIdentifier="IBFirstResponder" id="23" sceneMemberID="firstResponder"/>
            <viewController storyboardIdentifier="" title="Detail" id="21" customClass="HelloWorldDetailViewController" sceneMemberID="viewController">
                <view key="view" contentMode="scaleToFill" id="22">
                    <rect key="frame" x="0.0" y="64" width="320" height="416"/>
                    <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
                    <subviews>
                        <tableView clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="static" style="plain" rowHeight="44" sectionHeaderHeight="22" sectionFooterHeight="22" id="bJd-7W-8nV">
                            <rect key="frame" x="0.0" y="0.0" width="320" height="445"/>
                            <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                            <color key="backgroundColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
                            <sections>
                                <tableViewSection headerTitle="" id="Ihs-Gj-deH">
                                    <cells>
                                        <tableViewCell contentMode="scaleToFill" selectionStyle="blue" hidesAccessoryWhenEditing="NO" indentationLevel="1" indentationWidth="0.0" id="6ax-NG-pEn">
                                            <rect key="frame" x="0.0" y="0.0" width="320" height="44"/>
                                            <autoresizingMask key="autoresizingMask"/>
                                            <view key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center">
                                                <rect key="frame" x="0.0" y="0.0" width="320" height="43"/>
                                                <autoresizingMask key="autoresizingMask"/>
                                                <subviews>
                                                    <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" text="Bird Name:" textAlignment="right" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" minimumFontSize="10" id="eba-dh-Ofl">
                                                        <rect key="frame" x="20" y="11" width="125" height="21"/>
                                                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
                                                        <fontDescription key="fontDescription" type="boldSystem" pointSize="17"/>
                                                        <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
                                                        <color key="highlightedColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
                                                    </label>
                                                    <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" text="Label" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" minimumFontSize="10" id="PBz-NZ-g9m">
                                                        <rect key="frame" x="153" y="11" width="147" height="21"/>
                                                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
                                                        <fontDescription key="fontDescription" type="system" pointSize="17"/>
                                                        <color key="textColor" white="0.66666666666666663" alpha="1" colorSpace="calibratedWhite"/>
                                                        <color key="highlightedColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
                                                    </label>
                                                </subviews>
                                                <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="calibratedWhite"/>
                                            </view>
                                        </tableViewCell>
                                    </cells>
                                </tableViewSection>
                                <tableViewSection headerTitle="" id="YGG-h0-ybX">
                                    <cells>
                                        <tableViewCell contentMode="scaleToFill" selectionStyle="blue" hidesAccessoryWhenEditing="NO" indentationLevel="1" indentationWidth="0.0" id="oYs-Dm-zlN">
                                            <rect key="frame" x="0.0" y="44" width="320" height="44"/>
                                            <autoresizingMask key="autoresizingMask"/>
                                            <view key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center">
                                                <rect key="frame" x="0.0" y="0.0" width="320" height="43"/>
                                                <autoresizingMask key="autoresizingMask"/>
                                                <subviews>
                                                    <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" text="Location:" textAlignment="right" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" minimumFontSize="10" id="mbD-Wl-CEY">
                                                        <rect key="frame" x="20" y="11" width="125" height="21"/>
                                                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
                                                        <fontDescription key="fontDescription" type="boldSystem" pointSize="17"/>
                                                        <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
                                                        <color key="highlightedColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
                                                    </label>
                                                    <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" text="Label" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" minimumFontSize="10" id="A69-jC-WXb">
                                                        <rect key="frame" x="153" y="11" width="147" height="21"/>
                                                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
                                                        <fontDescription key="fontDescription" type="system" pointSize="17"/>
                                                        <color key="textColor" white="0.66666666666666663" alpha="1" colorSpace="calibratedWhite"/>
                                                        <color key="highlightedColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
                                                    </label>
                                                </subviews>
                                                <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="calibratedWhite"/>
                                            </view>
                                        </tableViewCell>
                                    </cells>
                                </tableViewSection>
                                <tableViewSection headerTitle="" id="zi6-o7-XN3">
                                    <cells>
                                        <tableViewCell contentMode="scaleToFill" selectionStyle="blue" hidesAccessoryWhenEditing="NO" indentationLevel="1" indentationWidth="0.0" id="gsv-CZ-0go">
                                            <rect key="frame" x="0.0" y="88" width="320" height="44"/>
                                            <autoresizingMask key="autoresizingMask"/>
                                            <view key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center">
                                                <rect key="frame" x="0.0" y="0.0" width="320" height="43"/>
                                                <autoresizingMask key="autoresizingMask"/>
                                                <subviews>
                                                    <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" text="Date:" textAlignment="right" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" minimumFontSize="10" id="K2s-9i-tfj">
                                                        <rect key="frame" x="20" y="11" width="125" height="21"/>
                                                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
                                                        <fontDescription key="fontDescription" type="boldSystem" pointSize="17"/>
                                                        <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
                                                        <color key="highlightedColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
                                                    </label>
                                                    <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" text="Label" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" minimumFontSize="10" id="PTf-Ge-Hjf">
                                                        <rect key="frame" x="153" y="11" width="147" height="21"/>
                                                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
                                                        <fontDescription key="fontDescription" type="system" pointSize="17"/>
                                                        <color key="textColor" white="0.66666666666666663" alpha="1" colorSpace="calibratedWhite"/>
                                                        <color key="highlightedColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
                                                    </label>
                                                </subviews>
                                                <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="calibratedWhite"/>
                                            </view>
                                        </tableViewCell>
                                    </cells>
                                </tableViewSection>
                            </sections>
                        </tableView>
                    </subviews>
                    <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
                </view>
                <navigationItem key="navigationItem" title="Sightings" id="26"/>
                <connections>
                    <outlet property="lblBirdName" destination="PBz-NZ-g9m" id="KgV-rg-2MY"/>
                    <outlet property="lblDate" destination="PTf-Ge-Hjf" id="Scy-nS-Sot"/>
                    <outlet property="lblLocation" destination="A69-jC-WXb" id="hwm-Zv-8QE"/>
                </connections>
            </viewController>
        </objects>
        <point key="canvasLocation" x="902" y="64"/>
    </scene>
</scenes>
<classes>
    <class className="HelloWorldDetailViewController" superclassName="UITableViewController">
        <source key="sourceIdentifier" type="project" relativePath="./Classes/HelloWorldDetailViewController.h"/>
        <relationships>
            <relationship kind="outlet" name="lblBirdName" candidateClass="UILabel"/>
            <relationship kind="outlet" name="lblDate" candidateClass="UILabel"/>
            <relationship kind="outlet" name="lblLocation" candidateClass="UILabel"/>
        </relationships>
    </class>
    <class className="HelloWorldMasterViewController" superclassName="UITableViewController">
        <source key="sourceIdentifier" type="project" relativePath="./Classes/HelloWorldMasterViewController.h"/>
    </class>
</classes>
<simulatedMetricsContainer key="defaultSimulatedMetrics">
    <simulatedStatusBarMetrics key="statusBar"/>
    <simulatedOrientationMetrics key="orientation"/>
    <simulatedScreenMetrics key="destination"/>
</simulatedMetricsContainer>
</document>

我对 objective-c 和 Xcode 完全陌生，所以我不确定自己做错了什么，甚至不知道从哪里开始出现这样的错误。如果有人知道如何修复此错误，或者有更好的(在线)资源用于同时学习 Objective C 和 iOS 开发，我将不胜感激。

Here是我的项目，如果有人想帮我看看的话。

Answer 1

我能够找出我在教程中做错了什么。我没有拖动 TableViewController 并删除 DetailViewController，而是将一个表拖到详细 View 顶部的 Controller 上。我不确定我是怎么错过的，我昨天一定是真的很累。

此外，任何卡在苹果 iPhone 开发教程上的人，我强烈推荐 iTunes 上的“斯坦福 iPhone 开发”系列。我现在正在经历它，这太棒了。它解释了苹果教程从未做过的事情(比如何时在属性中使用强与弱，在属性中使用原子与非原子)。我知道我开始理解 Objective C，因为当我遇到困难时，我实际上知道要用谷歌搜索什么。