I tried to install the Captcha login add-on using this, but get the following error:
InvalidArgumentException: Attempted to convert NULL to string/binary [content_id] in
src/XF/Mvc/Entity/Entity.php at line
740
Rich (BB code):
XF\Mvc\Entity\Entity->_castValueToType() in src/XF/Mvc/Entity/Entity.php at line 694
XF\Mvc\Entity\Entity->setAsSaved() in src/XF/Mvc/Entity/Entity.php at line 1285
XF\Mvc\Entity\Entity->fastUpdate() in src/addons/ThemeHouse/InstallAndUpgrade/InstallAndUpgrade/Traits/AddonHandlerTrait.php at line 41
XenConcept\InstallAndUpgrade\InstallAndUpgrade\XenConcept->installAddOnProducts() in src/addons/ThemeHouse/InstallAndUpgrade/Admin/Controller/InstallUpgrade.php at line 42
ThemeHouse\InstallAndUpgrade\Admin\Controller\InstallUpgrade->ThemeHouse\InstallAndUpgrade\Admin\Controller\{closure}() in src/addons/ThemeHouse/InstallAndUpgrade/ControllerPlugin/Profile.php at line 88
ThemeHouse\InstallAndUpgrade\ControllerPlugin\Profile->handleReply() in src/addons/ThemeHouse/InstallAndUpgrade/Admin/Controller/InstallUpgrade.php at line 43
ThemeHouse\InstallAndUpgrade\Admin\Controller\InstallUpgrade->actionInstallProducts() in src/XF/Mvc/Dispatcher.php at line 321
XF\Mvc\Dispatcher->dispatchClass() in src/XF/Mvc/Dispatcher.php at line 248
XF\Mvc\Dispatcher->dispatchFromMatch() in src/XF/Mvc/Dispatcher.php at line 100
XF\Mvc\Dispatcher->dispatchLoop() in src/XF/Mvc/Dispatcher.php at line 50
XF\Mvc\Dispatcher->run() in src/XF/App.php at line 2177
XF\App->run() in src/XF.php at line 390
XF::runApp() in admin.php at line 13
Interestingly when I try to install it from the zip, I also get a warning about the file not being valid?
I seem to recall I had a similar issue with your "Member staff in conversations" add-on too..