[ Class name must be a valid object or a string ] while installing a local plugin in craft cms

[AmandeepSingh2048]

Description

Error: Class name must be a valid object or a string in C:\xampp\htdocs\craft\vendor\craftcms\cms\src\services\Plugins.php:494
Stack trace:
#0 C:\xampp\htdocs\craft\vendor\craftcms\cms\src\controllers\PluginsController.php(49): craft\services\Plugins->installPlugin('temp-p', NULL)
#1 [internal function]: craft\controllers\PluginsController->actionInstallPlugin()
#2 C:\xampp\htdocs\craft\vendor\yiisoft\yii2\base\InlineAction.php(57): call_user_func_array(Array, Array)
#3 C:\xampp\htdocs\craft\vendor\yiisoft\yii2\base\Controller.php(181): yii\base\InlineAction->runWithParams(Array)
#4 C:\xampp\htdocs\craft\vendor\craftcms\cms\src\web\Controller.php(190): yii\base\Controller->runAction('install-plugin', Array)
#5 C:\xampp\htdocs\craft\vendor\yiisoft\yii2\base\Module.php(534): craft\web\Controller->runAction('install-plugin', Array)
#6 C:\xampp\htdocs\craft\vendor\craftcms\cms\src\web\Application.php(274): yii\base\Module->runAction('plugins/install...', Array)
#7 C:\xampp\htdocs\craft\vendor\craftcms\cms\src\web\Application.php(577): craft\web\Application->runAction('plugins/install...', Array)
#8 C:\xampp\htdocs\craft\vendor\craftcms\cms\src\web\Application.php(253): craft\web\Application->_processActionRequest(Object(craft\web\Request))
#9 C:\xampp\htdocs\craft\vendor\yiisoft\yii2\base\Application.php(392): craft\web\Application->handleRequest(Object(craft\web\Request))
#10 C:\xampp\htdocs\craft\index.php(22): yii\base\Application->run()
#11 {main}

I created a plugin with pluginfactory.io
My plugin is visible in craft cms plugin plage but when i am trying to install the plugin i am getting this error
Any help would be appreciated

Additional info

PHP version	7.4.13
WINNT 10.0
MySQL 5.5.5
GD 7.4.13
Craft Solo 3.6.7
2.0.40
v2.14.3
7.2.0

[brandonkelly]

Looks like the only way that could happen is if your plugin class doesn’t extend craft\base\Plugin. Make sure that’s the case.

If you need additional help, please send your plugin source files over to [email protected].

[AmandeepSingh2048]

I tried this and few other solutions but nothing seems to work. I have sent the source code to [email protected]
Thankyou

[AntoineMaillard06]

I have the same issue here, @AmandeepSingh2048 were you able to fix it ?

[malikhamari]

Facing same issue, if find any lead, please put it in this thread, thanks

[brianjhanson]

This is usually some kind of misconfiguration issue. If you're running into it, make sure you've followed all the steps for loading your local plugin in the documentation and are extending the base plugin class as Brandon.