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POsomething wrong in my program by using GData xmlsupport
 

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    <p>I'm new here ,i don't know how to use this...here is my code :</p> <pre><code>NSString *strParse=@"url"; NSURL *urlParse=[NSURL URLWithString:strParse]; NSString *content=[[NSString alloc] initWithContentsOfURL:urlParse]; NSError *error; GDataXMLDocument *document=[[GDataXMLDocument alloc] initWithXMLString:content options:0 error:&amp;error]; </code></pre> <p>----------------------xml-----</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;root&gt; &lt;head&gt; &lt;version&gt;20100514103110&lt;/version&gt; &lt;/head&gt; &lt;channels&gt; &lt;channel&gt; &lt;id&gt;1&lt;/id&gt; &lt;name&gt; &lt;![CDATA[]]&gt; &lt;/name&gt; &lt;uuid&gt; &lt;![CDATA[21001]]&gt; &lt;/uuid&gt; &lt;site_url&gt; &lt;![CDATA[http://]]&gt; &lt;/site_url&gt; &lt;pics&gt; &lt;url&gt; &lt;![CDATA[/21001/cms_images/channel/2010-01/21/channel_51224251664216081527429.png]]&gt; &lt;/url&gt; &lt;url&gt; &lt;![CDATA[/21001/cms_images/channel/2010-01/21/channel_82864703356323359638124.png]]&gt; &lt;/url&gt; &lt;url&gt; &lt;![CDATA[/21001/cms_images/channel/2008-07/04/channel_67535050807177704592393.swf]]&gt; &lt;/url&gt; &lt;url&gt; &lt;![CDATA[]]&gt; &lt;/url&gt; &lt;url&gt; &lt;![CDATA[]]&gt; &lt;/url&gt; &lt;/pics&gt; &lt;linkurls&gt; &lt;url&gt; &lt;![CDATA[]]&gt; &lt;/url&gt; &lt;url&gt; &lt;![CDATA[]]&gt; &lt;/url&gt; &lt;url&gt; &lt;![CDATA[]]&gt; &lt;/url&gt; &lt;/linkurls&gt; &lt;description&gt; &lt;![CDATA[]]&gt; &lt;/description&gt; &lt;provider&gt; &lt;![CDATA[]]&gt; &lt;/provider&gt; &lt;attr&gt;3&lt;/attr&gt; &lt;props&gt; &lt;prop1&gt; &lt;![CDATA[21001/movie_shell.swf]]&gt; &lt;/prop1&gt; &lt;prop2&gt; &lt;![CDATA[]]&gt; &lt;/prop2&gt; &lt;prop3&gt; &lt;![CDATA[]]&gt; &lt;/prop3&gt; &lt;prop4&gt; &lt;![CDATA[]]&gt; &lt;/prop4&gt; &lt;prop5&gt; &lt;![CDATA[]]&gt; &lt;/prop5&gt; &lt;/props&gt; &lt;/channel&gt; &lt;/channels&gt; &lt;/root&gt; </code></pre> <p>----------error below---------------</p> <pre><code> Ld build/Debug-iphonesimulator/newParser.app/newParser normal i386 cd /Users/apple/Desktop/newParser setenv MACOSX_DEPLOYMENT_TARGET 10.5 setenv PATH "/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin" /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/gcc-4.2 -arch i386 -isysroot /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator3.1.sdk -L/Users/apple/Desktop/newParser/build/Debug-iphonesimulator -F/Users/apple/Desktop/newParser/build/Debug-iphonesimulator -filelist /Users/apple/Desktop/newParser/build/newParser.build/Debug-iphonesimulator/newParser.build/Objects-normal/i386/newParser.LinkFileList -mmacosx-version-min=10.5 -lxml2 -framework Foundation -framework UIKit -framework CoreGraphics -o /Users/apple/Desktop/newParser/build/Debug-iphonesimulator/newParser.app/newParser Undefined symbols: "_kGDataXMLXPathDefaultNamespacePrefix", referenced from: _kGDataXMLXPathDefaultNamespacePrefix$non_lazy_ptr in GDataXMLNode.o (maybe you meant: _kGDataXMLXPathDefaultNamespacePrefix$non_lazy_ptr) ld: symbol(s) not found collect2: ld returned 1 exit status </code></pre>
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    1. COPost the XML parsing code that you're using and the XML it is being used against.
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    2. COhelp~~~~~~~~~~~~~~~~~
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    3. COFor a start, the XML you've posted is invalid. Check here - http://validator.w3.org/#validate_by_input
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