on install: "The requested language was not found!"

[der100]

I downloaded v1.7.1 from the front page, unzipped it and uploaded it to the server.
Then, when I went to admin/install.php, I immediately receive the response "The requested language was not found!?".
How do I fix this?

[Trauko]

You need upload all folders and files of PixelPost.

I can't see folders
/admin / install / images /
and
/ admin / install / language /
in your site

Suerte

[der100]

I unzipped the download and there is an /images directory and a /language directory but they're on the same level as the /admin directory, not /admin/install/images or /admin/install/language.
I copied the the folders into the /admin/install directory .... same result.