Xcode数据模型编辑器没有出现 [英] Xcode Data Model Editor not appearing

问题描述

我正在使用Xcode 4.2而我正在尝试使用Core Data。单击.xcdatamodeld文件后，我看到一个奇怪的视图而不是数据模型编辑器视图。

I'm using Xcode 4.2 and I'm trying to use Core Data. Upon clicking the .xcdatamodeld file I see a strange view instead of the Data Model Editor View.

我重新安装了Xcode 4.2，甚至从头开始创建了一个启动Core Data的启动项目，但问题仍然存在。当我使用新文件 - >数据模型创建数据模型时。它未被识别为DataModel。 Ctrl +单击 - >'打开为'仅显示预览选项。我将我的基本项目与在不同机器上创建的项目进行了比较（一切正常）。目录差异显示：

I have reinstalled Xcode 4.2 and have even created a starter project from scratch with Core Data Enabled but the issue persists. When I create a Data Model using new file --> Data Model. It is not being recognized as a DataModel. Ctrl+Click --> 'Open As' only displays a "Preview" option. I compared my basic project with that created on a different machine (where everything works fine). A directory diff reveals :

1. Foos.xcdatamodeld文件位于项目构建阶段的复制包资源部分下而不是在编译源部分。我将此文件移至编译源部分，但数据模型编辑器仍未显示。

1. The Foos.xcdatamodeld file was placed under the "Copy Bundle Resources" section of the project's Build Phase instead of being under the "Compile Sources" section. I moved this file to the "Compile Sources" section but the data model editor still doesn't display.

Foos / Foos.xcdatamodeld / .xccurrentversion文件在工作项目中看起来像

The Foos/Foos.xcdatamodeld/.xccurrentversion file in the working project looked like

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
   <key>_XCCurrentVersionName</key>
   <string>Foos.xcdatamodel</string>
</dict>
</plist>

在非功能性货币中它是

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
</dict>
</plist>

1. 我注意到的另一个不同之处是工作版在project.pbxproj文件中有以下内容

/* Begin XCVersionGroup section */
      831B12C114A7F73600524A33 /* Foos.xcdatamodeld */ = {
         isa = XCVersionGroup;
         children = (
            831B12C214A7F73600524A33 /* Foos.xcdatamodel */,
         );
         currentVersion = 831B12C214A7F73600524A33 /* Foos.xcdatamodel */;
         path = Foos.xcdatamodeld;
         sourceTree = "";
         versionGroupType = wrapper.xcdatamodel;
      };
/* End XCVersionGroup section */

而破损的部分没有此条目。

while the broken one did not have this entry.

我在两台机器上进行了/Developer/Platforms/iPhoneOS.platform/Developer/Library/Xcode/Templates的目录比较，模板完全相同。

I did a directory compare of /Developer/Platforms/iPhoneOS.platform/Developer/Library/Xcode/Templates on my two machines and the templates are identical.

所以我想知道Xcode的哪个部分导致了我的主要开发机器上面的差异。关于要尝试的事情或可能导致此问题的任何建议？

So I'm wondering what part of Xcode is causing the above differences on my primary dev machine. Any suggestions on things to try or what might be causing this issue?

推荐答案

我遇到了类似的问题。问题是项目目录结构以及它在XCode中的配置方式。

I ran into a similar issue. The problem was the projects directory structure and how it was configured in XCode.

这里有更多细节： XCode Cant'编辑CoreData模型

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