diff --git a/lib/tasks/import.rake b/lib/tasks/import.rake
index 10ca245b0..83694f14e 100644
--- a/lib/tasks/import.rake
+++ b/lib/tasks/import.rake
@@ -46,14 +46,14 @@ namespace :import do
       if name = `rpm -q --qf '[%{Name}]' -p #{srpm_file}` and $?.success? and name.present?
         if clear # simply add
           project = Project.find_or_create_by_name_and_owner_type_and_owner_id(name, owner.class.to_s, owner.id)
-          repo.projects << project
+          repo.projects << project rescue nil
         else # check if project already added
           if project = repo.projects.find_by_name(name) || repo.projects.by_name(name).first # fallback to speedup
             print "Found project '#{project.name_with_owner}' in '#{platform.name}/#{repo.name}'."
           elsif scoped = Project.where(:owner_id => owner.id, :owner_type => owner.class) and
                 project = scoped.find_by_name(name) || scoped.by_name(name).first
             begin
-              repo.projects << project
+              repo.projects << project rescue nil
             rescue Exception => e
               print "Add project '#{project.name_with_owner}' to '#{platform.name}/#{repo.name}' FAILED: #{e.message}."
             else
@@ -62,7 +62,7 @@ namespace :import do
           else
             description = ::Iconv.conv('UTF-8//IGNORE', 'UTF-8', `rpm -q --qf '[%{Description}]' -p #{srpm_file}`)
             project = Project.create!(:name => name, :description => description) {|p| p.owner = owner}
-            repo.projects << project
+            repo.projects << project rescue nil
             print "Create project #{project.name_with_owner} in #{platform.name}/#{repo.name} OK."
           end
         end