Possible missing image

[alfsb]

While building all languages, doc-fr shows this error at PhD step:

[14:30:29 - E_USER_WARNING        ] /home/andre/phpdoc-test/phd/phpdotnet/phd/MediaManager.php:101
	Image does not exist : en/reference/imagick/figures/functionImage_sinusoïdal.png
[14:30:29 - E_USER_WARNING        ] /home/andre/phpdoc-test/phd/phpdotnet/phd/MediaManager.php:101
	Image does not exist : en/reference/imagick/figures/functionImage_sinusoïdal.png
[14:30:29 - E_USER_WARNING        ] /home/andre/phpdoc-test/phd/phpdotnet/phd/MediaManager.php:101
	Image does not exist : en/reference/imagick/figures/functionImage_sinusoïdal.png

The problem in an accent on image file path: