Magento [2.3.0] Can't upload logo img

[anatolerozan]

Hello everyone,

I updated my magento in 2.3 (All is good),
but when I want to put an image online (example: logo of my site)

I get this error:

"A technical problem with the server created an error. Try again to continue what you were doing. If the problem persists, try again later."

I am in Admin account during my test.

The most bizzard is that I can put pictures on my products without any problem.

Also in my var / logs I have no error & apache2 too

Thanks for your help !

[Geeta Modi]

Hi @anatolerozan

Please try below shared solution

first run these commands 

 

bin/magento indexer:reindex 
bin/magento setup:di:compile  
bin/magento cache:clean  
bin/magento cache:flush

and then replace these settings

vendor/magento/module-theme/view/adminhtml/ui_component/design_config_form.xml

Old 154, field name="header_logo_src"
form Element="fileUploader" to new: 154 field name="header_logo_src" formElement="imageUploader"

Problem solved? Click Kudos & Accept as Solution!

[kerrin_simpson]

I have the same problem with a new install of community edition 2.3. It also happens when I try to upload a flavicon. The other message it gives me is this: "Search strings are either normal strings or regular expressions (PCRE). They are matched in the same order as entered Examples: Firefox: /^mozilla/I"

I edited the details on …...design_config_form.xml as suggested but it didn't do anything. 

How do you run a command on Magento? I am completely new to all this. Is it through cPanel?

[ayman_hilal]

Thank you a lot. It worked perfectly

[ercolepalmeri]

It works fine for me, great!

But I have the same problem for Favicon and Watermark images

Can You help me ?

---

[godphone]

It's works,thank you.

But the Transactional Emails Logo image have no way to adjust.

It's not working,too.

[gismagento2]

Edit

vendor/magento/module-email/view/adminhtml/ui_component/design_config_form.xml

Line 16:

<field name="email_logo" formElement="fileUploader">

to

<field name="email_logo" formElement="imageUploader">

[ubed arab]

This solution is working fine without making core file changes.

but instead making core file changes copy files on your custom theme or child theme 

vendor/magento/module-theme/view/adminhtml/ui_component/design_config_form.xml

design_config_form.xml

to 

yourthemeModulefile/view/adminhtml/ui_component/design_config_form.xml

and same changes made for email logo

<field name="email_logo" formElement="fileUploader">

to

<field name="email_logo" formElement="imageUploader">

File Uploader is replaced with Image Uploader.

[muzzamil_ali]

Hello

i want to solve this when i upload the brand images its break the link after i save it and flush brand images cache nothing happens..  

[KiosMaya]

i have some problem ..