XSLT Error Reference

FODC0002

All versions function error

Error message

Error retrieving resource / I/O error reported by XML parser processing file:/…

doc() or document() could not load the requested document: wrong relative URI, missing file, or an environment (like an online tool) with no filesystem access.

What it means

A call to doc(), document() or unparsed-text() failed to retrieve the resource — the URI did not resolve, the file does not exist, or its content is not well-formed XML.

Common causes

Relative URI resolved against the wrong base. document('lookup.xml') resolves relative to the stylesheet location (for doc() in some contexts, the static base URI) — not your shell’s working directory.
The file simply is not there (typo, wrong folder, not deployed with the stylesheet).
Sandboxed environments. Online tools have no access to your local filesystem — doc('file:/C:/data.xml') cannot work in a browser-based tester.
The resource exists but is not well-formed XML — the parse failure surfaces as a retrieval error.

How to fix it

Guard the lookup with doc-available() before calling doc().
Verify the base URI with base-uri(/) and static-base-uri() — print them with xsl:message.
In XSLT Playground, don’t use doc() for secondary inputs: pass extra documents as named parameters in the Input panel instead — see working with parameters and multiple inputs.

Reproduce & fix it in XSLT Playground →

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