As of January, 21st 2020:

I was just purchased and instal the "unlimited addons for WPBakery page builder", on my WordPress site. I have the latest WordPress version, and I have "WPBakery Page Builder" plugin as the package for Soledad theme as a bundling purchased from envato.

I was trying to activate the plugin, but I got this error message:

The plugin could not be activated because it triggered a fatal error.

Fatal error: Uncaught Exception: import path: /home/public/wp-content/plugins/unlimited-addons-for-wpbakery-page-builder/cache/import/ could not be created. Please check your permissions in /home/public/wp-content/plugins/unlimited-addons-for-wpbakery-page-builder/inc_php/framework/functions.class.php:29 Stack trace: #0 /home/public/wp-content/plugins/unlimited-addons-for-wpbakery-page-builder/inc_php/framework/functions.class.php(1300): UniteFunctionsUC::throwError(‘import path: /h…’) #1 /home/public/wp-content/plugins/unlimited-addons-for-wpbakery-page-builder/inc_php/unitecreator_exporter_base.class.php(53): UniteFunctionsUC::mkdirValidate(‘/home/public/wp…’, ‘import’) #2 /home/public/wp-content/plugins/unlimited-addons-for-wpbakery-page-builder/inc_php/unitecreator_exporter.class.php(807): UniteCreatorExporterBase->prepareImportFolders_globalImport() #3 /home/public/wp-content/plugins/unlimited-addons-for-wpbakery-page-builder/inc_php/unitecreator_exporter.class.php(1125): UniteCreatorExporter->prepareImportFolder in /home/public/wp-content/plugins/unlimited-addons-for-wpbakery-page-builder/inc_php/framework/functions.class.php on line 2

What is the possible cause and how to resolve it? Thank you for any possible help

The original file permission was 755 for plugin folder unlimited-addons-for-wpbakery-page-builder

I changed the file permission to 775 recursively to all directory under the folder unlimited-addons-for-wpbakery-page-builder using Filezilla but still have errors

I change to all directory and files using Putty: chmod -R 775 unlimited-addons-for-wpbakery-page-builder

but still got this error massage:

The plugin could not be activated since it triggered fatal error:

Fatal error: Uncaught Exception: import path: /home/public/wp-content/plugins/unlimited-addons-for-wpbakery-page-builder/cache/import/ could not be created. Please check your permissions in /home/public/wp-content/plugins/unlimited-addons-for-wpbakery-page-builder/inc_php/framework/functions.class.php:29
Stack trace:
#0 /home/public/wp-content/plugins/unlimited-addons-for-wpbakery-page-builder/inc_php/framework/functions.class.php(1300): UniteFunctionsUC::throwError('import path: /h...')
#1 /home/public/wp-content/plugins/unlimited-addons-for-wpbakery-page-builder/inc_php/unitecreator_exporter_base.class.php(53): UniteFunctionsUC::mkdirValidate('/home/public/wp...', 'import')
#2 /home/public/wp-content/plugins/unlimited-addons-for-wpbakery-page-builder/inc_php/unitecreator_exporter.class.php(807): UniteCreatorExporterBase->prepareImportFolders_globalImport()
#3 /home/public/wp-content/plugins/unlimited-addons-for-wpbakery-page-builder/inc_php/unitecreator_exporter.class.php(1125): UniteCreatorExporter->prepareImportFolder in /home/public/wp-content/plugins/unlimited-addons-for-wpbakery-page-builder/inc_php/framework/functions.class.php on line 29

What file permission should I apply and to what level, file/dir only or both?

Thanks for the repply but I still have the error:

Plugin could not be activated because it triggered a fatal error.

These were the steps I did:

- I checked the file permission of folder: "plugins" and the file permission is already 775

- Yet I set the permission using Putty: chmod -R 775 wp-content/plugins but still have error

- I move to wp-content dir with command: cd wp-content, then execute: chmod -R 775 plugins but still error

- I open Filezilla and apply permission 775 on folder "plugins" recursive to all forders and files, and after 3 hours proceed hundreds of files and directories, when a tried again to activate the plugin, I still got error

- I deactivate all the plugins from dashboard, then try to activate the plugin, I still got error

- I activate all the plugins, then try to activate plugin unlimited addons, and I was still got the error.

Again here are the errors I got:

Plugin could not be activated because it triggered a fatal error.

Fatal error: Uncaught Exception: import path: /home/public/wp-content/plugins/unlimited-addons-for-wpbakery-page-builder/cache/import/ could not be created. Please check your permissions in /home/public/wp-content/plugins/unlimited-addons-for-wpbakery-page-builder/inc_php/framework/functions.class.php:29 Stack trace: #0 /home/public/wp-content/plugins/unlimited-addons-for-wpbakery-page-builder/inc_php/framework/functions.class.php(1300): UniteFunctionsUC::throwError('import path: /h...') #1 /home/public/wp-content/plugins/unlimited-addons-for-wpbakery-page-builder/inc_php/unitecreator_exporter_base.class.php(53): UniteFunctionsUC::mkdirValidate('/home/public/wp...', 'import') #2 /home/public/wp-content/plugins/unlimited-addons-for-wpbakery-page-builder/inc_php/unitecreator_exporter.class.php(807): UniteCreatorExporterBase->prepareImportFolders_globalImport() #3 /home/public/wp-content/plugins/unlimited-addons-for-wpbakery-page-builder/inc_php/unitecreator_exporter.class.php(1125): UniteCreatorExporter->prepareImportFolder in /home/public/wp-content/plugins/unlimited-addons-for-wpbakery-page-builder/inc_php/framework/functions.class.php on line 29

Thank you verymuch, it works with 777 (it was 775 that did not work)

I chmod 777 the folder "cache" and now it is activated

home/public/wp-content/plugins/unlimited-addons-for-wpbakery-page-builder/cache/

Thanks a lot