Notice: Undefined offset: 2 in vendor\magento\framework\Encryption\Encryptor.php

Question

After login with correct credential, I cannot login into admin panel. Here is the error message I am getting:

1 exception(s):
Exception #0 (Exception): Notice: Undefined offset: 2 in D:\Xampp\htdocs\demo\webses\projname\vendor\magento\framework\Encryption\Encryptor.php on line 588

score 15 · Accepted Answer · edited Oct 03 '19 at 13:16

15

I had the same issue. Resolved it by creating a new admin user using terminal and using that new user to login backend.

php bin/magento admin:user:create --admin-user=john --admin-password=doe123445 \
  --admin-email=hi@mydomian.com --admin-firstname=John --admin-lastname=Doe

edited Oct 03 '19 at 13:16

Paul Roub

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answered Oct 03 '19 at 13:03

Tatenda Chuma

176
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score 8 · Answer 2 · answered Oct 28 '19 at 16:48

8

I installed the sodium extension for PHP and after restarting PHP and nginx this error no longer appeared. My version of PHP is PHP 7.1.30 and the command I ran was:

sudo apt-get install php7.1-sodium -y

answered Oct 28 '19 at 16:48

Rone Clay Brasil

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2
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This error occurs when you have an admin user from an environment that contained libsodium and your current environment does not. To resolve, enable the sodium extension. – Navarr Feb 10 '20 at 12:35
did it for me. thank you. In my case it might be the "problem" that I installed magento with php7.3 but the www runtime runs in php7.1 – cljk Sep 28 '20 at 09:45

score 4 · Answer 3 · answered Sep 06 '19 at 08:20

Usually, it happens when you get a database from another environment with the different PHP version, and admin user has been created there. E.g. you have PHP 7.1 and the admin user has been created with PHP 7.2. Just create the user in your environment or switch to the same PHP version.

score 2 · Answer 4 · edited Jan 23 '20 at 21:43

2

I had same issue and creating new user did not help me. However, updating the password and clearing cache worked for me. I used below SQL to update my password:

UPDATE admin_user SET password = CONCAT(SHA2('xxxxxxxxNewPassword', 256), ':xxxxxxxx:1') WHERE username = 'username';

edited Jan 23 '20 at 21:43

Dharman

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answered Jan 23 '20 at 21:39

Sarjan Gautam

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score 2 · Answer 5 · answered Sep 21 '20 at 12:50

2

update admin password in admin_user table "6f92815f581710d238a9837aa079e722dd5bec27e6717cfa6c691f04b4993797:ZrBkBsjOa8M5izHd4qjhXsSG1uGZgPZY:1". this password is "admin123"

answered Sep 21 '20 at 12:50

Vipin Garg

466
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15

score 0 · Answer 6 · answered Jan 21 '20 at 10:38

after upgrade magento 2.x.x to to any higher version you should first Make sure you run the upgrade command php bin/magento setup:upgrade php bin/magento setup:setup:static-content:deploy -f php bin/magento setup:di:compile

if stile error exists check your php version it should be 7.2.x hope it will solve your issue!

Notice: Undefined offset: 2 in vendor\magento\framework\Encryption\Encryptor.php

6 Answers6