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After updating my Mac to El Capitan my Latex was unable to build any new documents. I tried this method however I was unable to fix the issue. So I deleted Latex off my Mac using AppCleaner and downloaded mactex-20150613 from tug.org/mactex/

Now I fail to even install Latex on my computer using the downloaded package installer. Error Message: "The installation failed. The installer encountered an error that caused the installation to fail. Contact the software manufacturer for assistance."

Error message

ALso texlive seems to be there in /usr/local. In texlive: 2014, texmf-local (2 folders)

rebatoma
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user927584
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    Welcome! What exactly did you delete? Since LaTeX is not an application in Mac OS X's sense, you cannot have deleted LaTeX.app as there is no such thing. AppCleaner is... It is not wise to use these kinds of utilities unless you understand what needs to be done without using them and you are sure that they are going to do exactly that. Did you check the integrity of the download? Maybe it got corrupted? Right now, we don't really know what you did or what happened, I don't think. (But I don't have a recent Mac to be sure.) – cfr Oct 03 '15 at 02:44
  • I don't know what you did with AppCleaner, but let me ask you one question; does /usr/local exist on your machine? If not, you have possibly deleted that directory and even root user is prevented from making new directories under /usr due to the El Capitan's new feature called System Integrity Protection. This might help you disable SIP. – Merzong Oct 03 '15 at 05:10
  • I'm not sure how to check if /usr/local exists. Also tried sudo nvram boot-args="rootless=0 kext-dev-mode=1" based on this method but the computer restored itself back to previous state of disabling it. – user927584 Oct 03 '15 at 05:36
  • I don't think the downloaded file is corrupted but will try again soon. It is probable that AppCleaner didn't delete all the files as package isntaller is about 2.5G and the software deleted about 1G of file I think. – user927584 Oct 03 '15 at 05:43
  • Run ls /usr in terminal. Then, you can see a list of what is in /usr. – Merzong Oct 03 '15 at 13:37
  • I have ran and it does exists. Also, texlive seems to be there in /usr/local. In texlive: 2014 texmf-local – user927584 Oct 03 '15 at 23:01
  • If it exists, TeX Live 2015 should be installed in /usr/local/texlive/2015 and I don't know why you fail installing. Please edit the question and give us more specific information (e.g. error message/number, screenshots and so on). – Merzong Oct 04 '15 at 03:59
  • I have edited the question and now it has more details. – user927584 Oct 04 '15 at 09:22
  • Does the installer create a log which might tell us how it failed exactly? The fact that you do have /usr/local is good. (SIP should have prevented this being deleted, in fact.) Having 1G of deleted something-we-know-not-what is a bit difficult to comment on. Did AppCleaner create a log? Log files are likely to be under /Library or /Users//Library- maybe in a directory calledLogs` or something similar. – cfr Oct 04 '15 at 16:29
  • I trust you have read https://tug.org/mactex/mactex-download.html and https://www.tug.org/mactex/elcapitan.html? – moewe Oct 05 '15 at 13:36
  • It's most likely a corrupt download. Read the section under "Installation Errors" at https://tug.org/mactex/mactex-download.html and check the md5 sum. – Adam Maxwell Nov 03 '15 at 02:43

3 Answers3

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I experienced same/similar problem and initially (erroneously) put it down to the OS X El Capitan change to root.

Comments above on corrupted downloads reminded me that the MacTeX site strongly recommended download with Safari. A warning I ignored at my peril, because downloads on OS X via Chrome produced files with wrong checksums! Proof below...

$ md5 mactex-20150613.pkg 
MD5 (mactex-20150613.pkg) = 6aa62533c5aa0bc3d25b166cd67741fb

Whereas the stated package checksum for the MacTeX package [14 June 2015] should be 

= bf579a512d31253d828591fdb3644dca

Finally, a version downloaded via Safari yielded the following...

$ md5 mactex-20150613.pkg 
MD5 (mactex-20150613.pkg) = bf579a512d31253d828591fdb3644dca

Lesson learned "do do do run the MD5 file checksum"

Aldoaldo
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I had the same problem. I solved it by uninstalling MacTeX manually following the instructions on: https://tug.org/mactex/uninstalling.html

Azure
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    ...and then re-installing it? – Werner Oct 05 '15 at 16:35
  • Yes, correct. After I followed the instructions above, I could re-install with no problems. – Azure Oct 05 '15 at 17:09
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    My suggestion would be to make your post self-contained. So, rather than pointing to an external site for a solution technique, include the relevant details within your answer as an [edit], while still providing the original source link. You might find this is duplicating the target information, but it avoids users who land here to jump somewhere else for the information they need. – Werner Oct 05 '15 at 17:17
  • Did you just delete TeX or any other files such as GUI Applications, TeX Distribution Data Structure and Ghostscript? I deleted the TeX and it still doesn't work – user927584 Oct 09 '15 at 10:31
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I had the same problem (only other packages). I checked the md5 and the hash corresponded with the hash noticed on the sites where I downloaded the packages.

So after I got the error screen I tried rerunning it, no result. But when I rebooted my computer everything seemed to be fine. I installed Java and Python and they both worked.

So my best guess is that the installer just can't reboot your computer anymore. But when you do it manually everything seems to be fine.

Julian
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