I have the same problem.
Joomla 3.8.0
PHP 5.3.29

Norbert Vegh

This sounds like a server side permission issue, the install routine runs but doesn't allow the files to be overwritten. Can you check the files have been updated when installed?

Yes, I am able to install extensions via the Joomla! interface. (I do the version updates via the patch rather than the upgrade due to the number of sites that I host.) I have tried playing with all sorts of permissions and the only one that helps is to set the tmp directory to 777 or set it to 774 with the user set to the ftp user and the group set the the web server's group, but that only allows me to install stuff fresh, the updates and altering the configuration.php file remain broken and having the tmp directory set to such loose permissions is less than ideal.

Install akeeba admin tools and run a permissions fix

--
Tony Partridge

On 25 September 2017 at 17:49:45, nealrduncan (notifications@github.com)
wrote:

Yes, I am able to install extensions via the Joomla! interface. (I do the
version updates via the patch rather than the upgrade due to the number of
sites that I host.) I have tried playing with all sorts of permissions and
the only one that helps is to set the tmp directory to 777 or set it to 774
with the user set to the ftp user and the group set the the web server's
group, but that only allows me to install stuff fresh, the updates and
altering the configuration.php file remain broken and having the tmp
directory set to such loose permissions is less than ideal.

This comment was created with the J!Tracker Application
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issues.joomla.org/tracker/joomla-cms/18098.

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I installed akeeba admin tools and ran a permissions fix. No joy. I got the same error. "Update path does not exist." Global Configuration was not able to write to configuration.php either.

I have the same problem, too
Joomla 3.8.0
PHP Version 7.0.16

@tonypartridge See #18024
@nealrduncan @VeghNorbert samuel1201 Whether FTP layer was configured and enabled before update? Please run Forum Post Assistant and post apache2php handler and folder permissions - delete with FTP client.

So if it is saying it can write to the configuration file but doesn't actually work... it sounds to me like the file may have an ownership issue?

@tonypartridge Also see this forum topic

cc @Bakual

@tonypartridge My theory is simple #18024 caused in same environments an ownership issue.

Try if #18075 fixes it.
The FtpClient class is completely broken in 3.8.0. I don't know if the FTP layer also uses that class, but changes are high indeed.

@Bakual Can you prepare a custom update server? 3.8.0 with #18075

No, I can't do that. Maybe @mbabker can. But then, if you need the FTP layer and it is broken, you will not be able to update anyway since it's broken. So I'm not sure what an custom updateserver would help to test?
You will have to manually replace the file using an FTP program.

@Bakual As you can see before update to 3.8.0 in this cases there was no permission issues.

It sounds a lot like the whole FTP layer is broken due to the broken FtpClient class. But if that is the case, you will not be able to use the Joomla Update component to update Joomla, since that one imho uses the FTP layer as well.
So installations that use the FTP layer end up in a dead end. They will need to manually replace some files first using an FTP program.

Anather passibility is revet to backup in empty subfolder and then test #18075.

Can you prepare a custom update server?

Anyone can build an update server, the only thing I "block" is being able to publish it on our domain.

@Bakual Can you prepare it then?

@mbabker Can wee block direct updates to 3.8.0 as you describe few days ago in other issue? On forum there are at least few cases.

Nobody has answered questions I had, or really provided a clear answer of what specifically the problems are, so that we can best react to it. Until then, I don't want to just arbitrarily put a block in place without understanding what specifically we are blocking, and that understanding will help to be able to address the underlying problem in some way (if it's an issue with trying to run the code from two simultaneous versions, we can document it somewhere and explain why the extra step is needed; if there is a fix we can make in the code we can work on that, etc.).

@mbabker Please see #18020 (comment) plus subscribe this topic https://forum.joomla.org/viewtopic.php?t=955125&view=unread#p3494412

@wojsmol You could do that yourself then I guess. Honestly I would have to figure it out first myself as well.

The solution in 18075 worked for us, but we did have to make the tmp directory owned by the ftp user and the web server group.

@nealrduncan Please comment that on the #18075 or even better mark it as a successful test in https://issues.joomla.org/tracker/joomla-cms/18075. That would help a lot.

@Bakual Can you prepare a php part then can take the updateserver part :)

I tried to change the FtpClient.php and BufferStreamHandler.php by #18075
It's not worked..... so said.
Should i try to revert to the 3.7.5?

@nealrduncan How do you fixed it? changed the FtpClient.php and BufferStreamHandler.php?

@samuel1201 Yes, the solution in 18075 worked for us. We use ftp and have the joomla directories owned by the ftp user, but we did have to make the tmp directory owned by the ftp user and the web server group.

@nealrduncan Thanks for your reply! 👍

@samuel1201 If PR #18075 fixes the issue in your case please mark your test results in https://issues.joomla.org/tracker/joomla-cms/18075

@wojsmol No... #18075 is not worked in my case. :(

@samuel1201 Please post WebServer to PHP Interface value System > System Information > Tabulator "System Information" and screenshot of the permission tab..

and permission tab?

all Writable

@samuel1201 See this worming above
@nealrduncan Do you you had a warning above like in #18098 (comment) ?

I have no idea to fix this problem.
so I'm considering reverting to the old version （3.7.5)

@Bakual Any idea for #18098 (comment) ?
@samuel1201 you have ssh accces?

Any idea for #18098 (comment) ?

No. I also havent' looked deeper into this issue. I just know that the FtpClient class currently is broken and if that class is used, it will be broken as well. But I don't even know if that class is used here (when FTP layer is enabled). If you don't have the FTP layer enabled, then that shouldn't play a role at all.

@wojsmol Yes. My Nas has SSH setting

Download Full package of 3.8.0, extrackt to to separate folder and fiff this to folders. Look for mising files in site side and existing in there reference folder.
@Bakual This cen be dabe in php but noy updated when really necessary - https://checksums.kubik-rubik.de/#overview-joomla - cen we can contact Victor? - show separately missing file.

Sure, contacting @Kubik-Rubik is easy 😄

@Bakual I try this method few day ago in other issue - no response :(

Few days ago he was busy with JoomlaDay Germany for sure 😄

@Bakual ok, thx for info. I don't follow JoomlaDay's calendar around the world so closely 😄

@wojsmol yes, we had that warning until we changed the BufferStreamHandler.php & FtpClient.php per 18075. Then we got "Unable to find install package". We had to change the tmp directory to be owned by the web server to get it to work.

@samuel1201 See #18098 (comment)

@nealrduncan @samuel1201 Because both of you use php-fpm then try please search in the documentation how to run it as user. This is usual 1 line in appropriate config file. The please revert any ownership and permission changes on tmp and retest PR.

@wojsmol I build my joomla web site on my personal NAS and i am a visual & web designer so i can not to fix the problem with program grammar like PHP or SSL : ( . I install the 3.8.1 release in the morning and the problem still exists (So sad....T_T) . Finally thanks for your great great help!!

Set to "closed" on behalf of @franz-wohlkoenig by The JTracker Application at issues.joomla.org/joomla-cms/18098

closed as Thread is for Forums - Migrating and Upgrading to Joomla! 3.x.

#18075 was worked for me, now i can update extensions with FTP layer on :)

@jflash please mark your Test at #18075 as successfully:

• Please open Issue Tracker
• Login with your github-Account
• Click on blue "Test this"-Button above Authors-Picture
• mark your Test as successfully
• hit "submit test result"

Hello, I did a clean install of 3.8.1 on Windows 10 and Ubuntu 17.04, both on php 5.6. Ubuntu is having the blank Extensions page. Maybe tha last update of php it's generating the problem.

Thanks.

@VictorRodriguezcl Please ask help on the forums - Migrating and Upgrading to Joomla! 3.x. This repository concerns in first Place Joomla coding. For this Reason closing this Issue, thanks.

I have the same issue in a hosting environment. This is not a Joomla issue but a limitation imposed by the host which I cannot track down. I backed up my site and restored it locally. The error message disappears when run on my test server.

Try this:
youradress.com/administrator/index.php?option=com_installer&task=database.fix