I've installed and deployed magento-hackathon/magento-composer-installer in my Magento 1.9 and I am trying to add and use mpdf/mpdf (composer packagist) in a controller.

This package contains a classmapped file

"autoload": {
    "classmap": [

Which is called in another component.

$this->parsers[$fn] = new fpdi_pdf_parser($fn);

And then Magento gives me the error

Warning: include(Fpdi/Pdf/Parser.php): failed to open stream: No such file or directory in /../mymagento/lib/Varien/Autoload.php on line 94

The Mage.php seems to be patched properly, and I also tried to do composer dumpautoload.

Some facts and findings:

  • If I create a /newfile.php (on the root folder, with not triggering Magento), include autoload.php, and call the method, it works.
  • If I disable developer mode it works (and the warning is logged).
  • If I change the Varien/Autoload.php and add an if(stream_resolve_include_path($classFile)) (as suggested here) before returning the include, it works (but I would override a core file).
  • It seems that when composer autoload resolves fpdi_pdf_parser it makes a require_once to 'pdf_parser.php' and at this stage Mage autoload is triggered instead of Composer's autoload.

Am I missing something? Any help is appreciated.

  • In which folder that FPDI install?
    – kunj
    Aug 22, 2018 at 8:44
  • its under vendor/setasign/fpdi/fpdi_pdf_parser.php and the file that calls it, is vendor/mpdf/mpdf/src/Mpdf.php Aug 22, 2018 at 10:55
  • you want to use that as web, not for cron, right?
    – kunj
    Aug 24, 2018 at 11:11
  • Yes, for web and maybe cron Aug 25, 2018 at 7:13

1 Answer 1


Are you certain that the vendor directory is being autoloaded? That's what that error sounds like - I had a similar issue and used this module (instead of modifying the Mage.php file, which could cause conflicts in future patches):


  • I tried to make changes in the Autoloader as well, but it was still breaking. Your changes works fine. The only change I would suggest in your autoload is at line 195... Magento uses include_once, instead of include. ;) Thanks for helping. Aug 30, 2018 at 7:26
  • In fact I was precipitated, hehe. The problem continues even with your autoloader. I can't instantiate a new \Mpdf\Mpdf, which raises the same error (Warning: include(Fpdi/Pdf/Parser.php): failed to open stream: No such file or directory in /Users/martins/www/magenteiro/app/code/local/Varien/Autoload.php on line 181). I tried to create a model that extends this, but unloads Magento autoload (spl_autoload_unregister([Varien_Autoload::instance(), 'autoload']);). The problem is that anything that requires something from magento, after my Model is instantiated doesnt work. Aug 30, 2018 at 8:05

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