PDOException SQLSTATE[HY000] [2002] No such file or directory

Question

I believe that I've successfully deployed my (very basic) site to fortrabbit, but as soon as I connect to SSH to run some commands (such as php artisan migrate or php artisan db:seed) I get an error message:

[PDOException]
SQLSTATE[HY000] [2002] No such file or directory

At some point the migration must have worked, because my tables are there - but this doesn't explain why it isn't working for me now.

Possible duplicate of PHP - MySQL connection not working: 2002 No such file or directory — kenorb
– kenorb, Commented Nov 13, 2015 at 12:20
For me it was setting 'host' => 'mysql', in config/database.php and commenting unix_socket parameter. — temo
– temo, Commented Dec 29, 2021 at 13:44

Benjamin Loison · Accepted Answer · 2023-02-06 21:14:27Z

910

One of simplest reasons for this error is that a MySQL server is not running. So verify that first. In case it's up, proceed to other recommendations:

Laravel 4: Change "host" in the app/config/database.php file from "localhost" to "127.0.0.1"

Laravel 5+: Change "DB_HOST" in the .env file from "localhost" to "127.0.0.1"

I had the exact same problem. None of the above solutions worked for me. I solved the problem by changing the "host" in the /app/config/database.php file from "localhost" to "127.0.0.1".

Not sure why "localhost" doesn't work by default but I found this answer in a similar question solved in a symfony2 post. https://stackoverflow.com/a/9251924

Update: Some people have asked as to why this fix works so I have done a little bit of research into the topic. It seems as though they use different connection types as explained in this post https://stackoverflow.com/a/9715164

The issue that arose here is that "localhost" uses a UNIX socket and can not find the database in the standard directory. However "127.0.0.1" uses TCP (Transmission Control Protocol), which essentially means it runs through the "local internet" on your computer being much more reliable than the UNIX socket in this case.

edited Feb 6, 2023 at 21:14

Benjamin Loison

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answered Apr 8, 2014 at 4:07

stuyam

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23 Comments

John Over a year ago

strange that it was the solution for me too, but i am able to connect from the command line with mysql --host=localhost - that works, but not from PDO.

Justin Over a year ago

I would love to know WHY localhost doesn't work and 127.0.0.1 does??

Samuel Fullman Over a year ago

This worked for me on a MAMP system running a php file on the command line (terminal). It worked as a webpage, but not as a command line file until I changed localhost to '127.0.0.1'

pebbo Over a year ago

@Justin I think that is because localhost tries to use socket, while 127.0.0.1 uses TCP.

x-yuri Over a year ago

A Unix socket file is used if you do not specify a host name or if you specify the special host name localhost. dev.mysql.com/doc/refman/5.7/en/can-not-connect-to-server.html

|

ukautz · Accepted Answer · 2013-12-22 19:08:55Z

171

The error message indicates that a MySQL connection via socket is tried (which is not supported).

In the context of Laravel (artisan), you probably want to use a different / the correct environment. Eg: php artisan migrate --env=production (or whatever environment). See here.

answered Dec 22, 2013 at 19:08

ukautz

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5 Comments

borislemke Over a year ago

This was the solution to my problem, one of the developers at our company doesn't use Homestead and connects to mysql via socket. I removed the socket config within my app/database.php file. Problem solved

Mehulkumar Over a year ago

I just had to enable mysqli.so extension in php.ini

Ángel Carlos del Pozo Muela Over a year ago

I had to add "'unix_socket' => '/Applications/MAMP/tmp/mysql/mysql.sock'" to config/database.php

Kiran Patel Over a year ago

hello community , i am getting this error even though i am not using laravel can you look at the problem here it is stackoverflow.com/questions/60796332/…

Sych Over a year ago

This also happens when you use socket as MySQL endpoint, and the MySQL service simply does not run.

M-- · Accepted Answer · 2019-03-18 21:48:53Z

117

I got the same problem and I'm running Mac OS X 10.10 Yosemite. I have enabled the Apache Server and PHP that already comes with the OS. Then I just configured the mCrypt library to get started. After that when I was working with models and DB I got the error:

[PDOException]
SQLSTATE[HY000] [2002] No such file or directory

The reason I found is just because PHP and MySQL can't get connected themselves. To get this problem fixed, I follow the next steps:

Open a terminal and connect to the mysql with:
```
mysql -u root -p
```
It will ask you for the related password. Then once you get the mysql promt type the next command:
```
mysql> show variables like '%sock%'
```

You will get something like this:

+-----------------------------------------+-----------------+
| Variable_name                           | Value           |
+-----------------------------------------+-----------------+
| performance_schema_max_socket_classes   | 10              |
| performance_schema_max_socket_instances | 322             |
| socket                                  | /tmp/mysql.sock |
+-----------------------------------------+-----------------+

Keep the value of the last row:
```
/tmp/mysql.sock
```
In your laravel project folder, look for the database.php file there is where you configure the DB connection parameters. In the mysql section add the next line at the end:
```
'unix_socket' => '/tmp/mysql.sock'
```

You must have something like this:

'mysql' => array(
        'driver'    => 'mysql',
        'host'      => 'localhost',
        'database'  => 'SchoolBoard',
        'username'  => 'root',
        'password'  => 'venturaa',
        'charset'   => 'utf8',
        'collation' => 'utf8_unicode_ci',
        'prefix'    => '',
        'unix_socket' => '/tmp/mysql.sock',
    ),

Now just save changes, and reload the page and it must work!

edited Mar 18, 2019 at 21:48

M--

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answered Mar 6, 2015 at 18:13

alexventuraio

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16 Comments

animaacija Over a year ago

The most "straight to issue" solution. Thanx, this fixed me on running Laravel with MAMP pro

marknt15 Over a year ago

Thanks for this. This worked for me. Using OSX 10.10.5 MAMP Pro

Bort License Plate Over a year ago

This worked for me as well with MAMP pro and OS X 10.11.x. Ended up being: /Applications/MAMP/tmp/mysql/mysql.sock

Shautieh Over a year ago

+1. Using "127.0.0.1" in the config instead of "localhost" as Yamartino said in his answer works well but it's quicker with a socket and this answer solves the problem. It's a shame mysql treats "localhost" in such a peculiar way when unix_socket is defined though...

alexventuraio Over a year ago

@GregFerrell Yeah that's true but well... I hope it could be useful

|

dcarrith · Accepted Answer · 2014-03-20 03:51:08Z

54

I encountered the [PDOException] SQLSTATE[HY000] [2002] No such file or directory error for a different reason. I had just finished building a brand new LAMP stack on Ubuntu 12.04 with Apache 2.4.7, PHP v5.5.10 and MySQL 5.6.16. I moved my sites back over and fired them up. But, I couldn't load my Laravel 4.2.x based site because of the [PDOException] above. So, I checked php -i | grep pdo and noticed this line:

pdo_mysql.default_socket => /tmp/mysql.sock => /tmp/mysql.sock

But, in my /etc/my.cnf the sock file is actually in /var/run/mysqld/mysqld.sock.

So, I opened up my php.ini and set the value for pdo_mysql.default_socket:

pdo_mysql.default_socket=/var/run/mysqld/mysqld.sock

Then, I restarted apache and checked php -i | grep pdo:

pdo_mysql.default_socket => /var/run/mysqld/mysqld.sock => /var/run/mysqld/mysqld.sock

That fixed it for me.

answered Mar 20, 2014 at 3:51

dcarrith

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2 Comments

Luis Over a year ago

This was the fix that worked for me , the problem was that I installed two versions of mysql and removed one , the 127.0.0.1 change didn't work or adding the sock in the config , thanks ! @dcarrith

dragonflyesque Over a year ago

This helped me find my problem - which was that I was using OSX bundled php, not the MAMP php binary. So make sure you are using the right version of php that points to the correct php.ini, etc. Definite "doh!" moment.

stuyam · Accepted Answer · 2016-06-29 20:53:52Z

51

The answer from @stuyam solved the "No such file or directory" issue for me

Short answer: Change "host" in the /app/config/database.php file from "localhost" to "127.0.0.1"

But then I had a "Connection refused" error. If anyone had the same issue, my solution for this was to update the app/config/local/database.php file so the port is 8889:

'mysql' => array(
        'driver'    => 'mysql',
        'host'      => '127.0.0.1',
        'port'      => '8889',
        'database'  => 'databaseName',
        'username'  => 'root',
        'password'  => 'root',
        'charset'   => 'utf8',
        'collation' => 'utf8_unicode_ci',
        'prefix'    => '',
    ),

edited Jun 29, 2016 at 20:53

stuyam

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answered Jan 31, 2015 at 19:00

Marlow

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1 Comment

mopo922 Over a year ago

In my case, it was 'port' => '33060' but this answer got me there!

Cody Gray · Accepted Answer · 2019-04-24 01:43:26Z

30

In my case i had no problem at all, just forgot to start the mysql service...

sudo service mysqld start

edited Apr 24, 2019 at 1:43

Cody Gray♦

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answered Aug 29, 2014 at 16:51

Carlos ABS

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Comments

Koeno · Accepted Answer · 2015-03-03 15:04:42Z

26

If you are using Laravel Homestead, make sure you're calling the commands on the server.

homestead ssh

Then simply cd to the right directory and fire your command there.

answered Mar 3, 2015 at 15:04

Koeno

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3 Comments

cmac Over a year ago

This worked, I was running command from my computer instead of ssh into VM first and running command there.

Marcel Gruber Over a year ago

I always forget this step. Heh. 1. source ~/.zshrc 2. homestead up --provision 3. homestead ssh

Marcos Curvello Over a year ago

vagrant ssh in my case

Thomas Decaux · Accepted Answer · 2018-03-27 09:04:53Z

25

This is because PDO treats "localhost" host specially:

Note: Unix only: When the host name is set to "localhost", then the connection to the server is made thru a domain socket. If PDO_MYSQL is compiled against libmysqlclient then the location of the socket file is at libmysqlclient's compiled in location. If PDO_MYSQL is compiled against mysqlnd a default socket can be set thru the pdo_mysql.default_socket setting.

(from http://php.net/manual/en/ref.pdo-mysql.connection.php)

Changing localhost to 127.0.0.1 will "force" the use of TCP.

Note: mysqli_connect is working fine with localhost.

answered Mar 27, 2018 at 9:04

Thomas Decaux

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Comments

noone · Accepted Answer · 2018-09-19 06:01:12Z

24

It worked after I change from DB_HOST=localhost to DB_HOST=127.0.0.1 at .env file

answered Sep 19, 2018 at 6:01

noone

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3 Comments

Fusion Over a year ago

This worked, you are right. Do you have any ideas explaining why localhost does not work?

deathemperor Over a year ago

@Fusion if you're running your app inside a container it will understand 'localhost' as the container, 127.0.0.1 tells it to use the host's db

Tom Mwenda Over a year ago

I also had such an issue, couldn't clear cache or run artisan serve

Ravichandran · Accepted Answer · 2016-05-14 05:50:13Z

21

Add mysql.sock path in database.php file like below example

'unix_socket' => '/Applications/MAMP/tmp/mysql/mysql.sock',

Eample

'mysql' => [
        'driver' => 'mysql',
        'unix_socket' => '/Applications/MAMP/tmp/mysql/mysql.sock',
        'host' => env('DB_HOST', 'localhost'),
        'port' => env('DB_PORT', '8889'),

answered May 14, 2016 at 5:50

Ravichandran

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Comments

George John · Accepted Answer · 2016-02-23 09:38:07Z

20

Mamp user enable option Allow network access to MYSQL

answered Feb 23, 2016 at 9:38

George John

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Comments

Community · Accepted Answer · 2020-06-20 09:12:55Z

15

Step 1

Find the path to your unix_socket, to do that just run netstat -ln | grep mysql

You should get something like this

unix  2      [ ACC ]     STREAM     LISTENING     17397    /var/run/mysqld/mysqld.sock

Step 2

Take that and add it in your unix_socket param

'mysql' => array(
            'driver'    => 'mysql',
            'host'      => '67.25.71.187',
            'database'  => 'dbname',
            'username'  => 'username',
            'password'  => '***',
            'charset'   => 'utf8',
            'collation' => 'utf8_unicode_ci',
            'prefix'    => '',
            'unix_socket'    => '/var/run/mysqld/mysqld.sock' <-----
            ),
        ),

Hope it helps !!

edited Jun 20, 2020 at 9:12

CommunityBot

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answered Feb 28, 2017 at 20:16

code-8

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Comments

Community · Accepted Answer · 2017-04-13 12:13:50Z

14

Building on the answer from @dcarrith ...

Instead of editing the config files, I created an alias in the location that PHP is looking that connects to the real mysql.sock. (source)

Just run these two commands (no restart needed):

mkdir /var/mysql
ln -s /tmp/mysql.sock /var/mysql/mysql.sock

edited Apr 13, 2017 at 12:13

CommunityBot

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answered Oct 18, 2014 at 3:22

Justin

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Comments

Alp Altunel · Accepted Answer · 2022-07-25 20:17:23Z

11

Just i do one change in .env file

I have following line of code.

DB_CONNECTION=mysql
DB_HOST=localhost
DB_PORT=3306
DB_DATABASE=database_name
DB_USERNAME=root
DB_PASSWORD=

Change host name localhost to 127.0.0.1

DB_CONNECTION=mysql
DB_HOST=127.0.0.1
DB_PORT=3306
DB_DATABASE=database_name
DB_USERNAME=root
DB_PASSWORD=

That is work in my case because that can't find any hostname like localhost

And after changing hostname write following command

php artisan config:clear
php artisan migrate:install
php artisan migrate

edited Jul 25, 2022 at 20:17

Alp Altunel

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answered Aug 27, 2021 at 11:56

Rinkal Jasani

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Comments

anoraq · Accepted Answer · 2015-07-18 10:50:17Z

8

I'm running on MAMP Pro and had this similar problem when trying to migrate (create db tables). Tried a few of these mentioned suggestions as well but didn't do it for me.

So, simply (after an hour googling), I added two things to the /config/database.php.

'port' => '1234',
'unix_socket' => '/path/to/my/socket/mysqld.sock'

Works fine now!

answered Jul 18, 2015 at 10:50

anoraq

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Comments

Lano · Accepted Answer · 2019-01-07 03:00:39Z

7

I had this problems when I was running my application using docker containers.

The solution was put the name of the MySQL service container I was using in docker_compose.yml on DB_HOST. In my case, it was db :

DB_HOST=db

Hope it helps.

answered Jan 7, 2019 at 3:00

Lano

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2 Comments

Стас Пишевский Over a year ago

Nice! You save my night kek :)

Стас Пишевский Over a year ago

If you run Laravel app in container you need use container credentials. E.g. mysql expose ports 33333:3306 in for DB_PORT use 3306.

user5373314 · Accepted Answer · 2015-09-26 17:10:27Z

4

I ran into this problem when running PHPUnit in Elixir/Gulp, and Homestead as my Vagrant enviroment.

In my case I edited the .env file from DB_HOST=localhost to DB_HOST=192.168.10.10 where 192.168.10.10 is the IP of my Vagrant/Homestead host.

answered Sep 26, 2015 at 17:10

user5373314

Comments

Ahmed Awan · Accepted Answer · 2018-03-04 13:44:11Z

4

Check your port carefully . In my case it was 8889 and i am using 8888. change "DB_HOST" from "localhost" to "127.0.0.1" and vice versa

answered Mar 4, 2018 at 13:44

Ahmed Awan

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1 Comment

David Over a year ago

Great, thank you, my port was 3306 but my real port is 8889

Cody Gray · Accepted Answer · 2019-04-24 01:46:34Z

4

I had similar problems accessing my Drupal website. I fixed it by opening the command line, and restarting my MySQL server or service:

service mysqld restart

This should work. If it doesn't, restart your local webserver:

service httpd restart

That should be enough. Hope it works for other environments, too. Note that these commands generally require superuser privileges.

edited Apr 24, 2019 at 1:46

Cody Gray♦

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answered Jul 1, 2015 at 8:26

RAWGIT

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Comments

Oscar Gallardo · Accepted Answer · 2020-03-08 21:07:30Z

4

I had the same problem using Docker and MySQL service name db in docker_compose.yml file:

I added the following in the .env file:

DB_HOST=db

you should also assure that your host is discoverable from the php app.

It was because PHP didn't figure out which host to use to connect.

answered Mar 8, 2020 at 21:07

Oscar Gallardo

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1 Comment

xorinzor Over a year ago

Same issue here, was still using DB_HOST=localhost and got SQLSTATE[HY000] [2002] No such file or directory when changing it to DB_HOST=127.0.0.1, the error changed to SQLSTATE[HY000] [2002] Connection refused. Only when I changed it into the name of the MySQL docker container did it start working, ie: DB_HOST=mysql in my case. Not sure why that works, when other answers claim it has to do with sockets, my guess is some kind of fallback mechanism with incorrect checks throwing misleading errors.

Hasinur · Accepted Answer · 2021-01-19 13:40:02Z

I got the same problem in ubuntu 18.04 with nginx. By following the below steps my issue has been fixd:

First open terminal and enter into mysql CLI. To check mysql socket location I write the following command.

mysql> show variables like '%sock%'

I got something like the below :

+-----------------------------------------+-----------------------------+
| Variable_name                           | Value                       |
+-----------------------------------------+-----------------------------+
| mysqlx_socket                           | /var/run/mysqld/mysqlx.sock |
| performance_schema_max_socket_classes   | 10                          |
| performance_schema_max_socket_instances | -1                          |
| socket                                  | /var/run/mysqld/mysqld.sock |
+-----------------------------------------+-----------------------------+
4 rows in set (0.00 sec)

In laravel project folder, look for the database.php file in the config folder. In the mysql section I modified unix_socket according to the above table.

'mysql' => array(
        'driver'    => 'mysql',
        'host'      => '127.0.0.1',
        'database'  => 'database_name',
        'username'  => 'username',
        'password'  => 'password',
        'charset'   => 'utf8',
        'collation' => 'utf8_unicode_ci',
        'prefix'    => '',
        'unix_socket' => '/var/run/mysqld/mysqld.sock',
    ),

Now just save changes, and reload the page and it worked.

malhal · Accepted Answer · 2015-03-15 00:00:16Z

As of Laravel 5 the database username and password goes in the .env file that exists in the project directory, e.g.

DB_HOST=127.0.0.1
DB_DATABASE=db1
DB_USERNAME=user1
DB_PASSWORD=pass1

As you can see these environment variables are overriding the 'forge' strings here so changing them has no effect:

    'mysql' => [
        'driver'    => 'mysql',
        'host'      => env('DB_HOST', 'localhost'),
        'database'  => env('DB_DATABASE', 'forge'),
        'username'  => env('DB_USERNAME', 'forge'),
        'password'  => env('DB_PASSWORD', ''),
        'charset'   => 'utf8',
        'collation' => 'utf8_unicode_ci',
        'prefix'    => '',
        'strict'    => false,
    ],

More information is here https://mattstauffer.co/blog/laravel-5.0-environment-detection-and-environment-variables

Anna Logg · Accepted Answer · 2015-09-28 13:28:05Z

2

Attempt to connect to localhost:

SQLSTATE[HY000] [2002] No such file or directory

Attempt to connect to 127.0.0.1:

SQLSTATE[HY000] [2002] Connection refused

OK, just comment / remove the following setting from my.cnf (on OS X 10.5: /opt/local/etc/mysqlxx/my.cnf) to obtain:

[mysqld]
# skip-networking

Of course, stop and start MySQL Server.

answered Sep 28, 2015 at 13:28

Anna Logg

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Comments

Saleh Abdulaziz · Accepted Answer · 2022-02-13 15:16:12Z

2

solved

in my case it was a logic issue in code, the connection values are in a if statement:

if($_SERVER['HTTP_HOST'] == "localhost")

so the solution was to add a pipe and add 127.0.0.1, that solved the problem for me

if($_SERVER['HTTP_HOST'] == "localhost" || $_SERVER['HTTP_HOST'] == "127.0.0.1")

answered Feb 13, 2022 at 15:16

Saleh Abdulaziz

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Comments

ErcanE · Accepted Answer · 2015-06-21 22:22:04Z

1

If you are using Laravel Homestead, here is settings

(include Vagrant-Virtual Machine)

.bash-profile

alias vm="ssh [email protected] -p 2222"

database.php

    'mysql' => [
        'driver'    => 'mysql',
        'host'      => env('DB_HOST', '127.0.0.1'),
        'database'  => env('DB_DATABASE', 'homestead'),
        'username'  => env('DB_USERNAME', 'homestead'),
        'password'  => env('DB_PASSWORD', 'secret'),
        'charset'   => 'utf8',
        'collation' => 'utf8_unicode_ci',
        'prefix'    => '',
        'strict'    => false,
    ],

Terminal

vm

vagrant@homestead:~/Code/projectFolder  php artisan migrate:install

answered Jun 21, 2015 at 22:22

ErcanE

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Comments

Alberto Alegria · Accepted Answer · 2015-12-13 01:20:23Z

1

If anyone are still looking for the answer, just check your .env file. For some reason laravel create a .env.example file, so all this answers didn't work for me. I fixed my issue renamming .env.example to .env

answered Dec 13, 2015 at 1:20

Alberto Alegria

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1 Comment

petercoles Over a year ago

There's no single correct answer to this question as there are a variety of errors that can be made. This is one of them, as is failing to copy the .env file to a remote server. So it's worth checking the .env file on the server where you're trying to run the query to ensure that it both exists and contains the necessary information to make a connection.

james2doyle · Accepted Answer · 2016-12-14 18:32:31Z

1

This happened to me because MySQL wasn't running. MySQL was failing to start because I had a missing /usr/local/etc/my.cnf.d/ directory.

This was being required by my /usr/local/etc/my.cnf config file as a glob include (include /usr/local/etc/my.cnf.d/*.cnf).

Running mkdir /usr/local/etc/my.cnf.d, and then starting MySQL, fixed the issue.

answered Dec 14, 2016 at 18:32

james2doyle

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Comments

Brad · Accepted Answer · 2018-06-06 17:53:00Z

1

In my case, I was running php artisan migrate on my mac terminal, when I needed to ssh into vagrant and run it from there. Hope that helps someone the headache.

answered Jun 6, 2018 at 17:53

Brad

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Comments

Alexander Abreu · Accepted Answer · 2023-03-09 13:21:02Z

1

In my case I had to remove the bootstrap/cache folder and try it again.

My cenario was after a server migration.

UPDATED AND WORKING

Remove folder "cache" from bootstrap (booststrap/cache)
Copy folder "cache" from original folder and paste it in bootstrap
Run these commands: 3.1) php artisan config:cache 3.2) php artisan migrate 3.3) php artisan db:see 3.4) php artisan serve

That's all.

edited Mar 9, 2023 at 13:21

Alexander Abreu

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answered Aug 28, 2019 at 21:22

Raphael Cangucu

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1 Comment

Ahmed Bahtity Over a year ago

that solve my problem. I was try to create db using php artisan db:create . although just before this command I have a DB but I was in need to fresh db. , but I faced. there was no single change that affect the mysql connection

modnarrandom · Accepted Answer · 2024-03-13 20:40:03Z

1

For me I hit this error when testing a remote mysql server using ssl and had forgotten to setup the database connections with the ssl certificate.

answered Mar 13, 2024 at 20:40

modnarrandom

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