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POMSBuild 4.0 failing on XMLQuery task (from MSBuild Community Tasks package) with error MSB4018
 

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  1. POMSBuild 4.0 failing on XMLQuery task (from MSBuild Community Tasks package) with error MSB4018
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    <p>We use MSBuild to run a project which, among many other things, reads some values from an XML file by means of the XMLQuery task from the Community Tasks package. It worked fine under MSBuild 3.5 but when run under 4.0 it fails with the following message:</p> <p>error MSB4018: The "XmlQuery" task failed unexpectedly. System.Xml.XmlException: Name cannot begin with the '%' character, hexadecimal value 0x25. Line 1, position 2. at System.Xml.XmlTextReaderImpl.Throw(Exception e) at System.Xml.XmlTextReaderImpl.Throw(String res, String[] args) at System.Xml.XmlTextReaderImpl.ParseQName(Boolean isQName, Int32 startOffset, Int32&amp; colonPos) at System.Xml.XmlTextReaderImpl.ParseElement() at System.Xml.XmlTextReaderImpl.ParseDocumentContent() at System.Xml.XmlTextReaderImpl.Read() at System.Xml.XPath.XPathDocument.LoadFromReader(XmlReader reader, XmlSpace space) at System.Xml.XPath.XPathDocument..ctor(TextReader textReader) at MSBuild.Community.Tasks.Xml.XmlQuery.loadXmlContent() at MSBuild.Community.Tasks.Xml.XmlQuery.Execute() at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute() at Microsoft.Build.BackEnd.TaskBuilder.ExecuteInstantiatedTask(ITaskExecutionHost taskExecutionHost, TaskLoggingContext taskLoggingContext, TaskHost taskHost, ItemBucket bucket, TaskExecutionMode howToExecuteTask, Boolean&amp; taskResult)</p> <p>The code used to call XMLQuery from within a build target:</p> <pre><code>&lt;!-- Read XML report --&gt; &lt;ReadLinesFromFile File="coverageXML\symbolmodule.xml"&gt; &lt;Output TaskParameter="Lines" ItemName="XmlReportLines" /&gt; &lt;/ReadLinesFromFile&gt; &lt;!-- Get number of visited sequence points --&gt; &lt;XmlQuery Lines="@(XmlReportLines)" XPath="/trendcoveragedata/stats/@vsp"&gt; &lt;Output TaskParameter="Values" PropertyName="VisitedSequencePoints" /&gt; &lt;/XmlQuery&gt; </code></pre> <p>I just can't understand what's wrong. The XML file is perfectly valid and the XPath specified in the XMLQuery should return a value (and always has). I can't find a single % character <em>anywhere</em>.</p> <p>I'm not sure how and where to start troubleshooting this issue... Any pointers in the right direction are appreciated.</p>
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    1. This table or related slice is empty.
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
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      1. POMSBuild 4.0 failing on XMLQuery task (from MSBuild Community Tasks package) with error MSB4018
      1. This table or related slice is empty.
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      1. POMSBuild 4.0 failing on XMLQuery task (from MSBuild Community Tasks package) with error MSB4018
      1. This table or related slice is empty.
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    1. COI noticed it's possible to actually debug MSBuild projects using Visual Studio 2010, so I'm going to try and see if that gives any more info
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      1. POMSBuild 4.0 failing on XMLQuery task (from MSBuild Community Tasks package) with error MSB4018
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