jojaba

Is it possible that it comes from my hosts file?
I paste here the content of the file I changed (the 4 lines, 1 commment and 3 local IP adresses:

# Copyright (c) 1993-2009 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a '#' symbol.
#
# For example:
#
#      102.54.94.97     rhino.acme.com          # source server
#       38.25.63.10     x.acme.com              # x client host
# For Google calendar on localhost
       192.168.0.13     test.com
       192.168.1.23     test.com
       192.168.1.10     test.com 

# localhost name resolution is handled within DNS itself.
       127.0.0.1       localhost
       ::1             localhost

Hello,

Did you manage to get the plugin work on localhost?
I tried to use my box IP in the dev console settings field, but this still didn’t work.
Just to be sure I’m not going the wrong way: I can create multiple api key for a calendar and use them simultaneously, is that correct?

Yes I did it. No better result.
Maybe I should ask on google calendar forums (I don’t know if they exist…)

Oh I see. that’s a good idea.
I tried with this code:

public function enqueue_public_styles() {
	    if (is_single() && get_post_type() == 'gce_feed')
		    wp_enqueue_style( $this->plugin_slug . '-public', plugins_url( 'css/gce-style.css', __FILE__ ), array(), $this->version );

	}

Works for calendar on single page but not for widget…
Maybe the solution is here (uses shortcodes): http://beerpla.net/2010/01/13/wordpress-plugin-development-how-to-include-css-and-javascript-conditionally-and-only-when-needed-by-the-posts/

Found what changed.
In file class-google-calendar-events.php on line 147:
wp_register_style( $this->plugin_slug . '-public', plugins_url( 'css/gce-style.css', __FILE__ ), array(), $this->version );
The wp function has been changed. Revert to the previous function (in previous versions) wp_enqueue_style() to have the plugin again good to go for this issue.
In other terms, replace:
wp_register_style( $this->plugin_slug . '-public', plugins_url( 'css/gce-style.css', __FILE__ ), array(), $this->version );
By:
wp_enqueue_style( $this->plugin_slug . '-public', plugins_url( 'css/gce-style.css', __FILE__ ), array(), $this->version );
I will report this issue to the developpers.