# EPUBCheck RSC-007: Referenced resource … could not be…

Source: https://epublab.com/epubcheck/rsc-007/ (updated 2026-11-03)

EPUBCheck RSC-007 is an error message: “Referenced resource "…" could not be found in the EPUB.” A link or reference points to a file that is not in the EPUB.

- Official message (EPUBCheck 5.4.0): Referenced resource "%1$s" could not be found in the EPUB.
- Default severity: Error

## Typical causes

- A misspelled path or wrong case (paths are case-sensitive).
- A file that was deleted or renamed, or a link left over from the source document, such as a converted PDF's internal link.

## How to fix it

- Correct the path, or add the missing file to the EPUB and the manifest.
- Remove the link if the target no longer exists.

Message text and severity: EPUBCheck (W3C, BSD-3-Clause). Explanation: EPUBLab.