[Plugin: Google Analytics for WordPress] conflict with other plugin

hi dear i am loving your work you are doing extraordinary here thanks for that the reason i am here is that i just install an other plugin called click missile by stuart wider and got that error
Fatal error: Call to undefined function wp_get_current_user() in /home/busines/public_html/wp-content/plugins/google-analytics-for-wordpress/googleanalytics.php on line 1498
both plugin seems to work fine individually , is there any fix for that?

http://wordpress.org/extend/plugins/google-analytics-for-wordpress/