# TexLive 2017 installation “perl522.dll is missing” error

``````the program cant start because perl522.dll is missing from your computer.
try reinstalling the program to fix this problem
``````

then i install perl. but The problem was not solved. I go to this links:

ftp://ftp.dante.de/tex-archive/systems/texlive/tlnet/tlpkg/tlperl/bin/

and

this file's Do not exist:

``````libgcc_s_sjlj-1.dll  -  perl5.22.1.exe - perl522.dll
``````

But in:

``````(libgcc_s_sjlj-1.dll  ,  perl5.22.1.exe , perl522.dll) are exist.
``````

when i copt these file to mu texlive folder and then begin install, i get this error:

``````install-tl" -gui perltk
"is_seven" is not exported by the TeXLive::TLWinGoo module
Can't continue after import errors at Z:\texlive\install-tl line 64.
Press any key to continue . . .
``````

that 3 files was exist in texlive pretest. but, was deleted in "texlive 2017" first release (today). (but exist in install-tl.zip file)

what is solution? thanks

• I'm not sure if you should install now. Not everything is already on all mirrors, I e.g. don't get updates for my pretest installation. So perhaps you didn't get everything. The needed perl is normally part of texlive: In my pretest installation perl522.dll is in tlpkg/tlperl/bin. – Ulrike Fischer Jun 4 '17 at 13:54
• If you have rsync-ed a TeX Live repository you should explicitly use that rsync-ed repository for the installation. I do not know the Windows version of the installer. But in the Linux version this can be done using option `-repository <path to local repository>`. – Schweinebacke Jun 4 '17 at 14:18
• @Ulrike Fischer thanks. "In my pretest installation perl522.dll is in tlpkg/tlperl/bin" yes. also for me. but in texlive 2017 was deleted. but exist in install-tl.zip. i test this mistake in several windows and clean windows's. and happened. – Hadi Safi aghdam Jun 4 '17 at 14:49
• @Schweinebacke thanks. but, I do. In windows, installer chooses itself local repository automatically. – Hadi Safi aghdam Jun 4 '17 at 14:51
• Why are you installing a new texlive if you already have the pretest? Anyway I think you should wait a day and then try again. – Ulrike Fischer Jun 4 '17 at 14:57

After today's update, the problem was solved. texlive maintainer was added newer version of 3 file to `\texlive\tlpkg` folder.
``````(libgcc_s_sjlj-1.dll  ,  perl5.24.1.exe , perl524.dll)