Attention

IronPLC can only run very simple programs. The steps described are accurate but many language features are not yet supported.

P0006

Code

P0006

Message

XML file is malformed

This error occurs when the compiler encounters a PLCopen XML file that is not valid XML. The file cannot be parsed because it violates XML syntax rules.

Example

This error typically occurs due to:

  1. Unclosed tags

  2. Mismatched tag names

  3. Invalid characters in the document

  4. Missing XML declaration

  5. Malformed attribute syntax

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://www.plcopen.org/xml/tc6_0201">
  <fileHeader companyName="Test" productName="Test"
  <!-- Missing closing > and rest of document -->

The XML parser will report this as malformed because the opening tag is incomplete.

To fix this error, ensure your XML file is well-formed:

  1. All tags must be properly closed

  2. Tag names must match exactly (case-sensitive)

  3. Attribute values must be quoted

  4. Special characters must be escaped (e.g., &lt; for <)

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://www.plcopen.org/xml/tc6_0201">
  <fileHeader companyName="Test" productName="Test" productVersion="1.0" creationDateTime="2024-01-01T00:00:00"/>
  <!-- Rest of valid XML document -->
</project>