Add the following text in preference

{ "word_wrap": true  }

Run following commands to cache credentials

$ git config credential.helper store
$ git push https://github.com/repo.git

Username for ‘https://github.com’:
Password for ‘https://USERNAME@github.com’:

check the session path configured in app/etc/env.php

'session' => [
         'save' => 'files',
         'save_path' => '/var/php/session/',
     ],

and make sure save_path has proper permission and ownership

Run the following queries

CREATE USER 'phpcode'@'localhost' IDENTIFIED BY '#####';
GRANT ALL PRIVILEGES ON * . * TO 'pramod'@'localhost';

Make sure you have the following line added in ngin configuration

upstream fastcgi_backend {  
    server unix:/var/run/php/php7.0-fpm.sock;
}

Or

upstream fastcgi_backend {  
     server 127.0.0.1:9000;
 }

first check for current session life time

php bin/magento config:show admin/security/session_lifetime 

If there is no entry issue the following query

insert into core_config_data (config_id, scope, scope_id, path, value) values (null, 'default', 0, 'admin/security/session_lifetime', 36000);

If entry is there increase the session life time. It can be done in two ways

UPDATE core_config_data SET value = 86400 WHERE path = 'admin/security/session_lifetime';

OR

Issue the following command from magento root directory

php bin/magento config:set admin/security/session_lifetime 86400 
php bin/magento cache:clean

This should solve the problem

Issue the following command

sed -i '1,10539d' FILENAME

Run the following command

php bin/magento sampledata:deploy

test

Magento 2 is strict about the XML configuration.

The code  <remove src="css/print.css" media="print" />  in  magento2-theme-performance/Magento_Theme/layout/default_head_blocks.xml Generates this error.

If you remove the ‘media’ attribute of print.css this issue is resolved.

Following are the fields you need to set 0 or 1 in core_config_data table to minify css/js files.

dev/js/minify_files - Minify Js
dev/css/minify_files - Minify css