views format cannot be changed to jquery carousel

Have you installed modules jquery_carousel and libraries?

If you are getting any error, could you please attach the same here.

I installed the same Drupal version and same module versions. But I'm able to change to any format.

Could you please explain "the format can't be changed"? What is the exact issue that you face which will help me in solving this.

Sorry, unable to reproduce.

I have the same issue! Drupal 7.38, everything installed, no error message anywhere. It just doesn't switch to the format "jQuery Carousel".

Then I did a test in creating a new view and selecting jquery_carousel as the format there. That displays a server 500 error and the error.log shows the following stack trace. However, when changing in an existing view, it just fails silently without any error message anywhere.

[Tue Jul 07 14:35:32.568192 2015] [:error] [pid 10454] [client 127.0.0.1:60305] PHP Fatal error:  Call to a member function uses_fields() on null in /var/www/w/azz/sites/all/modules/views/plugins/views_wizard/views_ui_base_views_wizard.class.php on line 319, referer: http://azz.w.localhost/admin/structure/views/add
[Tue Jul 07 14:35:32.568230 2015] [:error] [pid 10454] [client 127.0.0.1:60305] PHP Stack trace:, referer: http://azz.w.localhost/admin/structure/views/add
[Tue Jul 07 14:35:32.568249 2015] [:error] [pid 10454] [client 127.0.0.1:60305] PHP   1. {main}() /var/www/w/azz/index.php:0, referer: http://azz.w.localhost/admin/structure/views/add
[Tue Jul 07 14:35:32.568260 2015] [:error] [pid 10454] [client 127.0.0.1:60305] PHP   2. menu_execute_active_handler($path = *uninitialized*, $deliver = *uninitialized*) /var/www/w/azz/index.php:21, referer: http://azz.w.localhost/admin/structure/views/add
[Tue Jul 07 14:35:32.568349 2015] [:error] [pid 10454] [client 127.0.0.1:60305] PHP   3. call_user_func_array:{/var/www/w/azz/includes/menu.inc:519}(*uninitialized*, *uninitialized*) /var/www/w/azz/includes/menu.inc:519, referer: http://azz.w.localhost/admin/structure/views/add
[Tue Jul 07 14:35:32.568361 2015] [:error] [pid 10454] [client 127.0.0.1:60305] PHP   4. ajax_form_callback() /var/www/w/azz/includes/menu.inc:519, referer: http://azz.w.localhost/admin/structure/views/add
[Tue Jul 07 14:35:32.568409 2015] [:error] [pid 10454] [client 127.0.0.1:60305] PHP   5. drupal_process_form($form_id = *uninitialized*, $form = *uninitialized*, $form_state = *uninitialized*) /var/www/w/azz/includes/ajax.inc:382, referer: http://azz.w.localhost/admin/structure/views/add
[Tue Jul 07 14:35:32.568423 2015] [:error] [pid 10454] [client 127.0.0.1:60305] PHP   6. drupal_rebuild_form($form_id = *uninitialized*, $form_state = *uninitialized*, $old_form = *uninitialized*) /var/www/w/azz/includes/form.inc:973, referer: http://azz.w.localhost/admin/structure/views/add
[Tue Jul 07 14:35:32.568473 2015] [:error] [pid 10454] [client 127.0.0.1:60305] PHP   7. drupal_retrieve_form($form_id = *uninitialized*, $form_state = *uninitialized*) /var/www/w/azz/includes/form.inc:464, referer: http://azz.w.localhost/admin/structure/views/add
[Tue Jul 07 14:35:32.568484 2015] [:error] [pid 10454] [client 127.0.0.1:60305] PHP   8. call_user_func_array:{/var/www/w/azz/includes/form.inc:841}(*uninitialized*, *uninitialized*) /var/www/w/azz/includes/form.inc:841, referer: http://azz.w.localhost/admin/structure/views/add
[Tue Jul 07 14:35:32.568535 2015] [:error] [pid 10454] [client 127.0.0.1:60305] PHP   9. views_ui_add_form($form = *uninitialized*, $form_state = *uninitialized*) /var/www/w/azz/includes/form.inc:841, referer: http://azz.w.localhost/admin/structure/views/add
[Tue Jul 07 14:35:32.568548 2015] [:error] [pid 10454] [client 127.0.0.1:60305] PHP  10. ViewsUiBaseViewsWizard->build_form($form = *uninitialized*, $form_state = *uninitialized*) /var/www/w/azz/sites/all/modules/views/includes/admin.inc:375, referer: http://azz.w.localhost/admin/structure/views/add
[Tue Jul 07 14:35:32.568597 2015] [:error] [pid 10454] [client 127.0.0.1:60305] PHP  11. ViewsUiNodeViewsWizard->build_form_style($form = *uninitialized*, $form_state = *uninitialized*, $type = *uninitialized*) /var/www/w/azz/sites/all/modules/views/plugins/views_wizard/views_ui_base_views_wizard.class.php:142, referer: http://azz.w.localhost/admin/structure/views/add
[Tue Jul 07 14:35:32.568610 2015] [:error] [pid 10454] [client 127.0.0.1:60305] PHP  12. ViewsUiBaseViewsWizard->build_form_style($form = *uninitialized*, $form_state = *uninitialized*, $type = *uninitialized*) /var/www/w/azz/sites/all/modules/views/plugins/views_wizard/views_ui_node_views_wizard.class.php:24, referer: http://azz.w.localhost/admin/structure/views/add

Found the reason for the error. The plugin is in a file called views/plugins/jqueryCarouselPluginStyleCarousel.inc but the module's info file is loading views/plugins/JqueryCarouselPluginStyleCarousel.inc with an upercase "J" at the beginning of the file name. This is failing on most OSes but not on all.

h/t jurgenhaas

fixed! why not committed?