less issue about magento-2-pronko-consulting-theme HOT 3 OPEN

you could import _responsive.less exists in lib and lib/variable
or just remove the @media_common variable in theme.less

& when (@media-common = true) { => & when (true)

from magento-2-pronko-consulting-theme.

Same Error still exists

from magento-2-pronko-consulting-theme.

On Running this command : F:\xampp\htdocs\mag>php bin/magento s:s:d -f**

Got Error :- Compilation from source: F:/xampp/htdocs/mag/vendor/magento/theme-frontend-blank/web/css/email-inline.less
variable @media-common is undefined in file F:/xampp/htdocs/mag/var/view_preprocessed/pub/static/frontend/Pronko/consulting/en_US/css/source/_theme.less in _theme.less on line 128, column 9

Please Provide How to correct it line by line

Deploy using quick strategy
frontend/Magento/blank/en_US 2269/2269 ============================ 100% 1 min
adminhtml/Magento/backend/en_US 2908/2908 ============================ 100% 31 secs
frontend/Magento/luma/en_US 2285/2285 ============================ 100% 25 secs
frontend/Pronko/consulting/en_US 757/2293 =========>------------------ 33% 9 secs
Compilation from source: F:/xampp/htdocs/mag/lib/web/mage/gallery/gallery.less
variable @media-common is undefined in file F:/xampp/htdocs/mag/var/view_preprocessed/pub/static/frontend/Pronko/consulting/en_US/css/source/_theme.less in _theme.less on line 128, column 9
126| // _____________________________________________
127|
128| & when (@media-common = true) {
frontend/Magento/blank/en_US 2269/2269 ============================ 100% 1 min
adminhtml/Magento/backend/en_US 2908/2908 ============================ 100% 31 secs
frontend/Magento/luma/en_US 2285/2285 ============================ 100% 25 secs
frontend/Pronko/consulting/en_US 2184/2293 ==========================>- 95% 17 secs
Compilation from source: F:/xampp/htdocs/mag/vendor/magento/theme-frontend-blank/web/css/email-inline.less
variable @media-common is undefined in file F:/xampp/htdocs/mag/var/view_preprocessed/pub/static/frontend/Pronko/consulting/en_US/css/source/_theme.less in _theme.less on line 128, column 9
126| // _____________________________________________
127|
frontend/Magento/blank/en_US 2269/2269 ============================ 100% 1 min
adminhtml/Magento/backend/en_US 2908/2908 ============================ 100% 31 secs
frontend/Magento/luma/en_US 2285/2285 ============================ 100% 25 secs
frontend/Pronko/consulting/en_US 2293/2293 ============================ 100% 39 secs
frontend/Evince/shoptheme/en_US 2286/2286 ============================ 100% 42 secs
Compilation from source: F:/xampp/htdocs/mag/vendor/magento/theme-frontend-blank/web/css/print.less
Execution time: 555.11294913292ined in file F:/xampp/htdocs/mag/var/view_preprocessed/pub/static/frontend/Pronko/consult
ing/en_US/css/source/_theme.less in _theme.less on line 128, column 9

from magento-2-pronko-consulting-theme.