/languages/faq-pro-de_DE.xml: failed to open stream: No such file or directory

I solved it myself. I am still wondering, if anyone else has the same issue.

Error is thrown at location

wp-content/plugins/w3-total-cache/inc/functions/other.php:19

I changed the second file check condition (!file_exists($file)) from

$file2 = W3TC_LANGUAGES_DIR . '/faq-pro-' . get_locale() . '.xml';
    if (!file_exists($file)) {
        $file2 = W3TC_LANGUAGES_DIR . '/faq-pro-en_US.xml';
    }

to (!file_exists($file2))

$file2 = W3TC_LANGUAGES_DIR . '/faq-pro-' . get_locale() . '.xml';
    if (!file_exists($file2)) {
        $file2 = W3TC_LANGUAGES_DIR . '/faq-pro-en_US.xml';
    }

Yep, I did.
It means there’s no translation of the W3 Total Cache FAQ for your language.
Just make a connection through FTP and go to folder
public_html/wp-content/plugins/w3-total-cache/languages/
Then copy the file
faq-pro-en_US.xml
to
faq-pro-de_DE.xml
To the same folder and the error is gone.

Cheers!
Jack.

Hi Jack.

This is one way to deal with it.
But this way you are removing the symptom, not the cause.

For me, this looks like a typical copy and paste error.
Nothing critical though.

Have a good one!

Marco

As I just found out, some fellas (and fellines) have created kinda fork which exactly fixed this bug a week ago:

https://github.com/szepeviktor/fix-w3tc/pull/23/files

And the plug in:
https://github.com/szepeviktor/fix-w3tc

Looks promising, I might give it a shot soon.

Hello webrockers, thanks for sharing the forked version, will surely check that out.