VS 2017中无法调试XSLT：编译报错且远程连接被拒绝

Hey there, let's work through these errors together—you've got a mix of syntax, compilation, and network-related problems here. Let's break them down step by step:

1. Fix the XSLT Compilation Error (Red Underline + XslLoadException) #

The red underline on your <xsl:stylesheet> tag is a dead giveaway that there's a syntax or structural issue in that line first. Looking at your snippet:

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:abcd="urn:abcd" exclude-resu...

The truncated exclude-resu... is almost certainly the problem. This should be the exclude-result-prefixes attribute, used to omit unused namespaces from your output XML. Common fixes here:

• Complete the attribute properly, e.g.:

  <!-- Exclude the "abcd" namespace from output -->
  <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:abcd="urn:abcd" exclude-result-prefixes="abcd">
  

  Or if you want to exclude all non-default namespaces:

  exclude-result-prefixes="#all"
  

• Double-check for missing quotes, typos, or unclosed attributes in the <xsl:stylesheet> tag—even a missing closing quote can trigger this red underline and compilation error.
• Use Visual Studio's Error List (go to View > Error List) to get the exact line/column and error message for the compilation issue—it'll tell you exactly what's broken.

2. Resolve WebException & SocketException (Remote Connection Refused) #

These network errors happen because your XSLT is trying to access a remote resource that's either unreachable or blocking your request. Here's how to track it down:

• Scan your XSLT for any references to remote URLs:
  • <xsl:import href="http://example.com/remote-style.xsl"/> or <xsl:include> with a remote path
  • The document() function pulling data from a remote XML file, like document('http://example.com/data.xml')
  • References to remote XML Schemas (XSDs) linked in your XML or XSLT
• Fixes for these:
  • Download the remote resource (XSL, XML, XSD) to your local project and update the reference to a local file path (e.g., href="./local-style.xsl").
  • If you need to keep the remote reference, verify the URL is correct, check if the server is online, and ensure your firewall/antivirus isn't blocking Visual Studio from making outgoing requests.
  • Temporarily comment out the remote reference to confirm it's the source of the network errors—if the errors go away, you know exactly what to fix.

3. Debugging Workflow to Avoid Headaches #

1. Fix syntax/compilation errors first: The XslLoadException will prevent your XSLT from running at all, so resolve the red underline issue before worrying about network errors.
2. Test incrementally: Once the syntax is fixed, run a simple transformation first (e.g., output a basic XML snippet) to confirm the XSLT compiles and runs without network issues.
3. Check Visual Studio's output details: The Output window might have more specific info about which remote server is being blocked—use that to target your troubleshooting.

内容的提问来源于stack exchange，提问作者bigSloppy