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    an error has happened during application run. see exception log for details.

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    [Fixed] An error has happened during application run. See exception log for details. Magento 2 – Mageplaza

    The topic today is one of the popular errors you will meet. As if the error message shows An error has happened during application run. See exception log for details Magento 2

    An error has happened during application run. See exception log for details. Magento 2

    The topic today is one of the popular errors you will meet. As if the error message shows An error has happened during application run. See exception log for details Magento 2

    The topic today is one of the popular errors you will meet. As if the error message shows [“An error has happened during application run. See exception log for details. could not write error message to log. please use developer mode to see the message.” in Magento 2 when you have uploaded Magento CE latest version and want to install it on your server, so what should you do? Here is the right solution for you.

    How to resolve: “An error has happened during application run. See exception log for details”

    Please open the .htaccess from the root and comment out the first line:

    SetEnv MAGE_MODE developer

    If you still get any troubles, find this topic: Exception printing is disabled by default for security reasons Magento 2 ask for help by leaving a comment.

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    duangporn_hemvijitraphan New Contributor

    ‎01-25-2018 08:33 PM

    magento 2 Error "An error has happened during application run. See exception log for details"

    I have updated to Magento 2 and it seems to be a mistake. The website is as follows.

    " An error has happened during application run. See exception log for details."

    http://203.170.129.6/~ichanged/

    help me please, Thank you.

    Solved! Go to Solution.

    community-edition magento2

    0 Kudos Reply All forum topics 1 ACCEPTED SOLUTION

    Damian Culotta Moderator

    ‎02-05-2018 07:34 PM

    Re: magento 2 Error "An error has happened during application run. See exception log for detail

    Hi @duangporn_hemvijitraphan,

    It seems you had open_basedir configured.

    Is it possible for you to disable it?

    View solution in original post

    5 Kudos Reply 20 REPLIES

    Damian Culotta Moderator

    ‎01-25-2018 08:39 PM

    Re: magento 2 Error "An error has happened during application run. See exception log for detail

    Hi @duangporn_hemvijitraphan,

    Into the Magento directory you'll find /var/log/exception.log. This is the file you should check to try to understand which kind of error you have.

    5 Kudos Reply

    duangporn_hemvijitraphan New Contributor

    ‎02-05-2018 01:59 AM

    Re: magento 2 Error "An error has happened during application run. See exception log for detail

    main.CRITICAL: Exception: Warning: realpath(): open_basedir restriction in effect. File(/var/www/html) is not within the allowed path(s): (/home/ichanged/:/tmp/:/var/tmp/:/usr/local/php56/lib/:/usr/local/php54/lib/:/usr/local/php55/lib/:/usr/local/php56/lib/:/usr/local/lib/php/) in /home/ichanged/domains/i-changed.com/public_html/pub/errors/processor.php on line 304 in /home/ichanged/domains/i-changed.com/public_html/vendor/magento/framework/App/ErrorHandler.php:61

    Stack trace:

    #0 [internal function]: Magento\Framework\App\ErrorHandler->handler(2, 'realpath(): ope...', '/home/ichanged/...', 304, Array)

    #1 /home/ichanged/domains/i-changed.com/public_html/pub/errors/processor.php(304): realpath('/var/www/html')

    #2 /home/ichanged/domains/i-changed.com/public_html/pub/errors/processor.php(151): Magento\Framework\Error\Processor->_getIndexDir()

    #3 /home/ichanged/domains/i-changed.com/public_html/pub/errors/processorFactory.php(26): Magento\Framework\Error\Processor->__construct(Object(Magento\Framework\App\Response\Http\Interceptor))

    #4 /home/ichanged/domains/i-changed.com/public_html/pub/errors/report.php(10): Magento\Framework\Error\ProcessorFactory->createProcessor()

    #5 /home/ichanged/domains/i-changed.com/public_html/vendor/magento/framework/App/Http.php(324): require('/home/ichanged/...')

    #6 /home/ichanged/domains/i-changed.com/public_html/vendor/magento/framework/App/Http.php(160): Magento\Framework\App\Http->handleGenericReport(Object(Magento\Framework\App\Bootstrap), Object(Exception))

    #7 /home/ichanged/domains/i-changed.com/public_html/vendor/magento/framework/App/Bootstrap.php(263): Magento\Framework\App\Http->catchException(Object(Magento\Framework\App\Bootstrap), Object(Exception))

    #8 /home/ichanged/domains/i-changed.com/public_html/index.php(39): Magento\Framework\App\Bootstrap->run(Object(Magento\Framework\App\Http))

    #9 {main} [] []

    help me please, Thank you.

    1 Kudo Reply

    Damian Culotta Moderator

    ‎02-05-2018 07:34 PM

    Re: magento 2 Error "An error has happened during application run. See exception log for detail

    Hi @duangporn_hemvijitraphan,

    It seems you had open_basedir configured.

    Is it possible for you to disable it?

    5 Kudos Reply

    TOOFASTMOTORS New Contributor

    ‎09-20-2018 12:01 PM

    Re: magento 2 Error "An error has happened during application run. See exception log for detail

    Hi same issue for me,

    Here's the exception.log:

    main.CRITICAL: Warning: Use of undefined constant MCRYPT_BLOWFISH - assumed 'MCRYPT_BLOWFISH' (this will throw an Error in a future version of PHP) in public_html/vendor/magento/framework/Encryption/Encryptor.php on line 397 {"exception":"[object] (Exception(code: 0): Warning: Use of undefined constant MCRYPT_BLOWFISH - assumed 'MCRYPT_BLOWFISH' (this will throw an Error in a future version of PHP) in /public_html/vendor/magento/framework/Encryption/Encryptor.php on line 397 at /public_html/vendor/magento/framework/App/ErrorHandler.php:61)"}

    Any idea how to revert back to 2.2.5 or fix this update issue with 2.2.6?

    Thank you!! 0 Kudos Reply

    Damian Culotta Moderator

    ‎09-22-2018 02:56 PM

    Re: magento 2 Error "An error has happened during application run. See exception log for detail

    Hi @TOOFASTMOTORS,

    Which version of PHP are you using?

    0 Kudos Reply

    TOOFASTMOTORS New Contributor

    ‎09-24-2018 08:48 AM

    Re: magento 2 Error "An error has happened during application run. See exception log for detail

    स्रोत : community.magento.com

    [Solved] An error has happened during application run. See exception log for details Magento 2

    [Solved] An error has happened during application run. See exception log for details Magento 2

    Jul 20 2020 Simon How To Guide 0 Comment

    Don’t panic if you encounter the above error. There exists a solution for every error that Magento throws and this error is no exception.

    The error “An error has happened during application run. See exception log for details. Could not write error message to log. Please use developer mode to see the message” usually occurs when you try to run Magento after uploading/installing Magento 2 latest version on your server.

    How to Fix “An error has happened during application run. See exception log for details”

    Either of the following solutions will solve the error in Magento 2.

    1. Set Developer Mode

    Developer mode is perfect for debugging and development. As stated in the error, Set Magento 2 developer mode to see the message. To set developer mode,

    Log into Magento 2 root via SSH/CLI

    Enter the following command:

    php bin/magento deploy:mode:set developer

    You should also check your Magento 2 error folder in Magento root var folder (var/report/*, var/log/debug.log, var/exception.log and system.log)

    2. Switch to Developer mode via .htaccess

    In case you can’t access your Magento 2 root directory via SSH/CLI, you can forcibly switch to developer mode via .htaccess. Here is what you need to do.

    Log in and navigate to the root of your store.

    Open .htaccess file for editing.

    Uncomment the following line (usually line #5):

    SetEnv MAGE_MODE developer

    3. Flush Cache

    To flush Magento 2 cache, go to Magento 2 root directory and run the following command to clear the cache. Try reloading the page when you are done.

    php bin/magento cache:flush

    If you need any help to fix this error, feel free to contact our support team.

    Enjoyed this post? Spread it to your friends!

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    Mohammed 6 day ago
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    Guys, does anyone know the answer?

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