Class "ProcessWire\PagesExportImport" not found

[dlzi]

Short description of the issue

ProcessPagesExportImport.module fails with Class "ProcessWire\PagesExportImport" not found when opening Pages → Export/Import in the admin. The PagesExportImport.php file is present in /wire/core/Pages/ but the class autoloader does not appear to look inside that subdirectory.

Steps to reproduce

1. Fresh install of ProcessWire
2. Log in as superuser
3. Open Pages → Export/Import in the admin

Expected behavior

The Export/Import page loads.

Actual behavior

A fatal error is thrown:

Class "ProcessWire\PagesExportImport" not found
File: wire/modules/Process/ProcessPagesExportImport/ProcessPagesExportImport.module:58

The offending line is:

$this->exportImport = new PagesExportImport();

Diagnosis

PagesExportImport.php exists in my install at:

wire/core/Pages/PagesExportImport.php

…not at wire/core/PagesExportImport.php. find . -iname 'PagesExportImport.php' confirms it's only in the Pages/ subdirectory.

WireClassLoader resolves other reorganized core classes correctly (the trace shows wire/core/Page/Page.php, wire/core/Template/TemplateFile.php, wire/core/WireHooks/WireHooks.php, wire/core/ProcessController/ProcessController.php all loading fine), so it looks like the Pages/ subdirectory is the one that hasn't been registered with the autoloader yet — or this file shouldn't be in a subfolder at all.

Workaround: moving the file to wire/core/PagesExportImport.php resolves the error.

Environment

• ProcessWire version: 3.0.261
• Branch / commit: dev
• PHP version: 8.5.6
• MySQL / MariaDB version: 11.8.2
• OS: Arch Linux
• Web server: PHP built-in server (php -S) with custom router.php
• 3rd-party modules potentially related: Tracy Debugger 2.11.2

Stack trace (excerpt)

ProcessPagesExportImport.module:58
  → wire/core/Wire.php:405
  → wire/core/WireHooks/WireHooks.php:1077
  → wire/core/Wire.php:476
  → wire/core/ProcessController/ProcessController.php:364
  → wire/core/admin.php:174
  → site/templates/admin.php:19
  → wire/core/Template/TemplateFile.php:328
  → wire/core/Page/Page.php:3106
  → wire/modules/Process/ProcessPageView.module:195
  → index.php:62