error when instaling wp 3.4 multisite

hello all
im new to this , sorry .
i tryid to install the multi site installation according to wordpress/wp-admin/network.php:

getting this error :

wp_1_posts: Table 'wordpress_master.wp_1_posts' doesn't exist
wp_1_comments: Table 'wordpress_master.wp_1_comments' doesn't exist
wp_1_links: Table 'wordpress_master.wp_1_links' doesn't exist
wp_1_options: Table 'wordpress_master.wp_1_options' doesn't exist
wp_1_postmeta: Table 'wordpress_master.wp_1_postmeta' doesn't exist
wp_1_terms: Table 'wordpress_master.wp_1_terms' doesn't exist
wp_1_term_taxonomy: Table 'wordpress_master.wp_1_term_taxonomy' doesn't exist
wp_1_term_relationships: Table 'wordpress_master.wp_1_term_relationships' doesn't exist
wp_1_commentmeta: Table 'wordpress_master.wp_1_commentmeta' doesn't exist

tried the repair function , and no good , what is wrong ?
thanks