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I update my Magento 2.0.1 to 2.1.6 and it updates successfully. The problem is from frontside CSS are not working correctly but in admin side, it is working good.enter image description here

What i do to update magento is

composer require magento/product-community-edition 2.0.2 --no-update
composer update
rm -rf var/di var/generation
php bin/magento cache:clean
php bin/magento cache:flush
php bin/magento setup:upgrade
php bin/magento setup:di:compile
php bin/magento indexer:reindex

After doing this all process when i do

/opt/lampp/bin/php bin/magento setup:static-content:deploy

It shows some css errors like

Compilation from source: /opt/lampp/htdocs/demofuel/vendor/magento/theme-frontend-blank/web/css/styles-l.less

Compilation from source:

frontend/Magento/blank/en_US/css/styles-l.less
variable @color-text-red is undefined in file /opt/lampp/htdocs/demofuel/var/view_preprocessed/css/frontend/Magento/blank/en_US/WeltPixel_Quickview/css/source/_module.less in _module.less on line 65, column 11
63|     .page-title{
64|       font-size: @indent__base * 1.05 !important;
65|       color: @color-text-red !important;
66|     }
67|     .product-info-price{
68|       .old-price{

.

Compilation from source: /opt/lampp/htdocs/demofuel/vendor/magento/theme-frontend-blank/web/css/styles-l.less

Compilation from source: 
frontend/Magento/luma/en_US/css/styles-l.less
variable @color-text-red is undefined in file /opt/lampp/htdocs/demofuel/var/view_preprocessed/css/frontend/Magento/luma/en_US/WeltPixel_Quickview/css/source/_module.less in _module.less on line 65, column 11
63|     .page-title{
64|       font-size: @indent__base * 1.05 !important;
65|       color: @color-text-red !important;
66|     }
67|     .product-info-price{
68|       .old-price{

.........................................................................................................

Compilation from source: /opt/lampp/htdocs/demofuel/vendor/magento/theme-frontend-blank/web/css/styles-m.less

Compilation from source: 
frontend/Magento/luma/en_US/css/styles-m.less
variable @color-text-red is undefined in file /opt/lampp/htdocs/demofuel/var/view_preprocessed/css/frontend/Magento/luma/en_US/WeltPixel_Quickview/css/source/_module.less in _module.less on line 65, column 11
63|     .page-title{
64|       font-size: @indent__base * 1.05 !important;
65|       color: @color-text-red !important;
66|     }
67|     .product-info-price{
68|       .old-price{

.

Compilation from source: /opt/lampp/htdocs/demofuel/vendor/magento/theme-frontend-blank/web/css/styles-l.less

Compilation from source: 
frontend/fuelpump-new/theme/en_US/css/styles-l.less
variable @color-text-red is undefined in file /opt/lampp/htdocs/demofuel/var/view_preprocessed/css/frontend/fuelpump-new/theme/en_US/WeltPixel_Quickview/css/source/_module.less in _module.less on line 65, column 11
63|     .page-title{
64|       font-size: @indent__base * 1.05 !important;
65|       color: @color-text-red !important;
66|     }
67|     .product-info-price{
68|       .old-price{

......................................................

Compilation from source: /opt/lampp/htdocs/demofuel/vendor/magento/theme-frontend-blank/web/css/styles-m.less

Compilation from source: 
frontend/Magento/blank/en_US/css/styles-m.less
variable @color-text-red is undefined in file /opt/lampp/htdocs/demofuel/var/view_preprocessed/css/frontend/Magento/blank/en_US/WeltPixel_Quickview/css/source/_module.less in _module.less on line 65, column 11
63|     .page-title{
64|       font-size: @indent__base * 1.05 !important;
65|       color: @color-text-red !important;
66|     }
67|     .product-info-price{
68|       .old-price{

...............PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 4096 bytes) in /opt/lampp/htdocs/demofuel/vendor/magento/framework/Filesystem/Directory/ReadFactory.php on line 40

Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 4096 bytes) in /opt/lampp/htdocs/demofuel/vendor/magento/framework/Filesystem/Directory/ReadFactory.php on line 40

Check https://getcomposer.org/doc/articles/troubleshooting.md#memory-limit-errors for more info on how to handle out of memory errors....................................................................................................................................................................................................................................

Compilation from source: /opt/lampp/htdocs/demofuel/vendor/magento/theme-frontend-blank/web/css/styles-m.less

Compilation from source: 
frontend/fuelpump-new/theme/en_US/css/styles-m.less
variable @color-text-red is undefined in file /opt/lampp/htdocs/demofuel/var/view_preprocessed/css/frontend/fuelpump-new/theme/en_US/css/source/_navigation.less in _navigation.less on line 26, column 30
24| 
25|     .nav-sections {
26|         .lib-css(background, @color-text-red);
27|     display: inline-block;
28|     float: left;
29|     width: 100%;

........................................................PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 1052672 bytes) in /opt/lampp/htdocs/demofuel/vendor/magento/framework/View/Asset/Bundle.php on line 192

Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 1052672 bytes) in /opt/lampp/htdocs/demofuel/vendor/magento/framework/View/Asset/Bundle.php on line 192

marked as duplicate by Siarhey Uchukhlebau, Manthan Dave, Keyul Shah, Amit Bera, brentwpeterson May 17 '17 at 13:05

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

0

Clear cache and deploy static content if you are not in developer mode

php bin/magento cache:flush
php bin/magento setup:static-content:deploy

Check the permissions in pub folder too

  • I already try this. – Jaimin May 17 '17 at 6:49
  • First of all thank you ruben but when i do static content deploy i show some css errors which i mention above in my question can you help me on that – Jaimin May 17 '17 at 7:21
  • Seems to be a memory_limit error. Check this post or change the php.ini configuration. magento.stackexchange.com/questions/97749/… – rubenR May 17 '17 at 9:17

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