no commands defined in the “setup” namespace

Question

[InvalidArgumentException] There are no commands defined in the "cache" namespace.

I am using putty to run some commands. if I run php bin/magento setup:cache Is there any thing I missed during installation

Answer 1

Please run below commands

rm -Rf var/cache/* generated/*

then

php -f bin/magento cache:flush

php bin/magento indexer:reindex

Answer 2

Solution 1:

The general main cause of this kind of error is missing etc/module.xml file in your module. Or, missing setup_version code inmodule.xml file.

Here is a sample module.xml file of a module named YourNamespace_YourModule.

app/code/YourNamespace/YourModule/etc/module.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--    
-->
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Moddule/etc/module.xsd">
<module name="Namespace_Yourmodule" setup_version="1.5.0">

</module>

If you are not sure which module is creating this problem, you can try removing each module and check to find the problematic module.

Solution 2:

If solution 1 doesn’t help then you can try this second solution.

Give full control (read/write/execute) to var and pub directory solved this issue for me.

sudo chmod -R 777 var pub

You may also try running the following command:

sudo php -f bin/magento module:enable --clear-static-content YourNamespace_YourModule

Answer 3

First, make sure that the module.xml file is defined properly in the etc directory of your module.

Then, run these commands in the root directory

rm -rf var/di/* var/generation/* var/cache/* var/page_cache/* pub/static/*
php bim/magento cache:clean
php bim/magento cache:flush

edit:

php bin/magento cache:clean

php bin/magento cache:flush

Answer 4

Seems some modules without file etc/module.xml

and this create error in command line

Answer 5

This also happens to me sometimes in sandbox env due to a wrong server configuration and not a code issue as mentionned in the others responses.

• Sending a magento command in CLI
• Getting the no command defined error as a result for an unknown reason.

When this happens if it's not a code issue, I run composer install to properly reinstall magento and after that the command CLI works again as expected.

Answer 6

No solution worked for me, removed var/* generated/* but one solution worked, that is i reinstall magento using cmd. and it fixed all the issues. hope this help for fresh installion