Upgrade Issue : 2.0.0 to 2.1.7

Question

I am try to upgrade magento 2.0.0 to 2.1.7

Tutorial : magento.stackexchange.com

After upgrade Back-end changed to 2.1.7, but front end looking like,

Note :

Refused to apply style from MIME type ('text/html') is not a supported stylesheet MIME type, and strict MIME checking is enabled Uncaught TypeError: Unable to process binding "css: function(){return { empty:cart().summary_count == 0} }" Message: cart is not a function at css (eval at createBindingsStringEvaluator (knockout.js:2624),

Note :

[DOM] Found 2 elements with non-unique id #email: (More info: https://goo.gl/9p2vKq) <input name=​"login[username]​" value autocomplete=​"off" id=​"email" type=​"email" class=​"input-text" title=​"Email" data-validate=​"{required:​true, 'validate-email':​true}​" aria-required=​"true">​ <input name=​"login[username]​" value autocomplete=​"off" id=​"email" type=​"email" class=​"input-text" title=​"Email" data-validate=​"{required:​true, 'validate-email':​true}​" aria-required=​"true">​
(index):1 [DOM] Found 2 elements with non-unique id #newsletter: (More info: https://goo.gl/9p2vKq) <input name=​"email" type=​"email" id=​"newsletter" placeholder=​"Enter your email address" data-validate=​"{required:​true, 'validate-email':​true}​">​ <input name=​"email" type=​"email" id=​"newsletter" placeholder=​"Enter your email address" data-validate=​"{required:​true, 'validate-email':​true}​">​
(index):1 [DOM] Found 2 elements with non-unique id #pass: (More info: https://goo.gl/9p2vKq) <input name=​"login[password]​" type=​"password" autocomplete=​"off" class=​"input-text" id=​"pass" title=​"Password" data-validate=​"{required:​true, 'validate-password':​true}​" aria-required=​"true">​ <input name=​"login[password]​" type=​"password" autocomplete=​"off" class=​"input-text" id=​"pass" title=​"Password" data-validate=​"{required:​true, 'validate-password':​true}​" aria-required=​"true">​
(index):1 [DOM] Found 2 elements with non-unique id #popup-login-form: (More info: https://goo.gl/9p2vKq) <form class=​"form form-login" action=​"http:​/​/​localhost/​beta/​customer/​account/​loginPost/​" method=​"post" id=​"popup-login-form" novalidate=​"novalidate">​…​</form>​ <form class=​"form form-login" action=​"http:​/​/​localhost/​beta/​customer/​account/​loginPost/​" method=​"post" id=​"popup-login-form" novalidate=​"novalidate">​…​</form>​
(index):1 [DOM] Found 2 elements with non-unique id #send2: (More info: https://goo.gl/9p2vKq) <button type=​"submit" class=​"action login primary" name=​"send" id=​"send2">​…​</button>​ <button type=​"submit" class=​"action login primary" name=​"send" id=​"send2">​…​</button>​
jquery-migrate.js:41 JQMIGRATE: jQuery.fn.andSelf() replaced by jQuery.fn.addBack()
migrateWarn @ jquery-migrate.js:41
jquery-migrate.js:43 console.trace
migrateWarn @ jquery-migrate.js:43
/beta/customer/section/load/?sections=cart&update_section_id=false&_=1526040812897:1 Failed to load resource: the server responded with a status of 404 (Not Found)
customer-data.js:86 Uncaught Error: [object Object]
    at Object.<anonymous> (customer-data.js:86)
    at fire (jquery.js:3099)
    at Object.fireWith [as rejectWith] (jquery.js:3211)
    at done (jquery.js:9312)
    at XMLHttpRequest.callback (jquery.js:9720)
2knockout.js:3012 Uncaught TypeError: Unable to process binding "css: function(){return { empty:cart().summary_count == 0} }"
Message: cart is not a function
    at css (eval at createBindingsStringEvaluator (knockout.js:2624), <anonymous>:3:71)
    at update (knockout.js:3803)
    at ko.dependentObservable.disposeWhenNodeIsRemoved (knockout.js:3004)
    at evaluateImmediate (knockout.js:1737)
    at Object.ko.computed.ko.dependentObservable (knockout.js:1946)
    at knockout.js:3002
    at Object.arrayForEach (knockout.js:151)
    at applyBindingsToNodeInternal (knockout.js:2974)
    at applyBindingsToNodeAndDescendantsInternal (knockout.js:2854)
    at applyBindingsToDescendantsInternal (knockout.js:2836)

Answer 1

Just run below command and check

php bin/magento setup:upgrade
php bin/magento setup:static-content:deploy
php bin/magento cache:clean

Answer 2

open the terminal and navigate to magento web root

Set folder permissions

find . -type f -exec chmod 644 {} \;
find . -type d -exec chmod 755 {} \;
find ./var -type d -exec chmod 777 {} \;
find ./pub/media -type d -exec chmod 777 {} \;
find ./pub/static -type d -exec chmod 777 {} \;
chmod 777 ./app/etc
chmod 644 ./app/etc/*.xml

Remove folder

sudo rm -rf pub/static
sudo rm -rf var/cache
sudo rm -rf var/composer_home
sudo rm -rf var/generation
sudo rm -rf var/page_cache
sudo rm -rf var/view_preprocessed

Run magento commands

php bin/magento setup:upgrade
php bin/magento setup:static-content:deploy
php bin/magento cache:flush
chmod -R 777 var
chmod -R 777 pub

Answer 3

run below query in your magento 2 database it will insert a row in core_config_data table:

INSERT INTO core_config_data (scope, scope_id, path, value) VALUES ('default', 0, 'dev/static/sign', '0');

If already added then change it to 0 then.