Solved: How to fix required parameter ‘theme_dir’ was not passed?

Why does this happen?

This error is normally returned when you remove your Magento theme directly from app/design or vendor/ directory. Removing theme files directly from the directory is not a Magento standard way anymore. Magento 2 has a CLI command to remove themes safely i.e.

Command usage:

magento theme:uninstall [--backup-code] [-c|--clear-static-content] {theme path} ... {theme path}
  • {theme path} is the relative path to the theme, starting with the area name. For example, the path to the Blank theme supplied with Magento 2 is frontend/Magento/blank.
  • --backup-code backs up the Magento 2 codebase as discussed in the paragraphs that follow.
  • --clear-static-content cleans generated static view files, which is necessary to cause static view files to display properly.


STEP 1 : File Operations

  • Delete the content from app/design/frontend/<Vendor>.
  • Delete all the content of folder var/view_preprocessed & pub/static/frontend.

STEP 2 : DB Operations

Go to your theme table and delete the entry for your created theme.

After that…

Go to your core_config_data table and search for theme and you will get path records like design/theme/theme_id replace your default theme id in it. You can run the following command in PHPMyadmin or your database CLI.

SELECT * FROM `core_config_data` WHERE `path` LIKE '%design/theme/theme_id%'

STEP 3 : Flush cache

Flush your cache php bin/magento cache:flush

Solved: Top Navigation is missing in Magento 2 when Varnish is activated

Steps to reproduce

  • Put store in maitenance mode
  • Install Magento 2.1 either from CLI or zip upload
  • run setup:upgrade and setup:di:compile commands
  • Navigate to front end

Expected result

Store page displays normally with catalog navigation for both HTTP and HTTPS requests

Actual result

Store page displays the navigation menu with HTTP request only. It doesn’t work for HTTPS

without https




Configure store URL and Varnish on HTTPS so all incoming requests are served securely. Make sure that you update your nginx configuration from fastcgi_param HTTPS $fastcgi_https; to fastcgi_param HTTPS “on”.

Learn How To Disable Low Disk Space Checks In Windows

How To Disable Low Disk Space Checks In Windows

The steps below apply to Windows 10, Windows 8, Windows 7, Windows Vista, and Windows XP.

  • Open Registry Editor.
    • The steps for opening Registry Editor are a little different in some versions of Windows, so follow that link above if you need specific help.
    • However, no matter which version of Windows you’re using, this command, when used from the Run dialog box (Windows Key + R) or Command Prompt, will open it right up
    • regedit
  • Locate the HKEY_CURRENT_USER folder under Computer and click the expand sign (either (+) or (>) depending on your Windows version) to expand the folder.
  • Continue to expand folders until you reach the HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion registry key.
  • Select the Policies key under CurrentVersion.
  • From the Registry Editor menu, choose Edit, followed by New, followed finally by Key.
  • Rename the new created New Key #1 to Explorer and Save(or Hit Enter).
  • With the new key, Explorer, still selected, choose Edit, followed by New, followed finally by DWORD (32-bit) Value.
  • After the DWORD is created beneath Explorer, it will initially be named New Value #1.
  • Change the name of the DWORD to NoLowDiskSpaceChecks by typing it exactly as shown, and then hitting the Enter key.
  • Right-click on the new NoLowDiskSpaceChecks DWORD you just created and choose Modify.
  • In the Value data: field, replace the zero with the number 1.
  • Click OK and close Registry Editor.
  • Windows will no longer warn you about low disk space on any of your hard drives.