无法解决maven-clean-plugin或其依赖项之一

Question

我正在尝试在脱机的Ubuntu计算机上安装class Ability include CanCan::Ability def initialize(user) if user.type=='Admin' can :manage, :all else # default access can :manage, Ticket can :manage, Notification can :manage, Message can :manage, Group can :manage, Conversation can :manage, Document can :manage, Skill can :manage, CaseLog work_class = WorkClass.find_by_id(user.work_class_id) if work_class.present? work_class.pages.each do |page| case page.name when "Area" can :manage, Area when "Team" can :manage, Team when "Work Class" can :manage, WorkClass when "Work Group" can :manage, WorkGroup when "Room Import" can :manage, Room when "Ticket Import" can :manage, Ticket when "Ticket Groups" can :manage, TicketGroup when "Department" can :manage, Department when "Sections" can :manage, Section when "Ticketing Rules" can :manage, Business can :manage, CreditRule when "Inspections" can :manage, Room can :manage, Inspection can :manage, InspectionDetail can :manage, RoomItem when "Room Grid" can :manage, Room can :manage, Inspection can :manage, InspectionDetail can :manage, RoomItem when "Guests" can :manage, Guest when "Reservations" can :manage, Reservation when "Employees" can :manage, Employee can :manage, HrLog when "Positions" can :manage, Position when "Supervisor" can :manage, EmployeeSupervisor when "Assignment" can :manage, Assignment when "Scheduling" can :manage, Shift can :manage, SchedulePattern when "Inventory" can :read, Employee when "Productivity" can :read, DailyProductivity when "GRA Manager" can :manage, GraEmployeeRoom can [:update], Employee can [:show], Room can [:create], CreditRule when "GRA Portal" can [:gra_portal,:search,:gra_log_start,:gra_logs],GraEmployeeRoom when "Daily Sheets" can [:daily_sheet, :daily_sheet_record_entry, :daily_sheet_date_filter], DailySheet can :manage, DailySheet when "Gold Sheets" can [:gold_sheet, :gold_live_console_entry, :gold_history_entry, :gold_sheet_date_filter], GoldSheet can :manage, GoldSheet can :manage, Shift when "Summary Sheets" can [:summary_sheet, :summary_sheet_record_entry, :summary_sheet_date_filter, :summary_previous_history_filter], SummarySheet can :manage, SummarySheet can :manage, Setting when "Settings" can :manage, Setting when "Schedule Patterns" can :manage, SchedulePattern when "OO/OS Dashboard" can :manage, OutOfOrder can :manage, Reason when "Room Items" can :manage, RoomItem end end end end end end 。因此，我尝试使用：

从源代码构建它。

neo4j

但是我遇到以下错误：

mvn clean install -o

因此，我从另一台计算机上的https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-clean-plugin/2.5/手动下载了相应的jar文件，然后将其传输到Ubuntu上。但是现在还不清楚我与该文件有什么关系……

Answer 1

Maven需要Internet访问或具有Internet访问权限的Nexus / Artifactory（许多公司都运行与MavenCentral相同的Nexus / Artifactory）。

虽然从理论上讲可以下载相关的jar并将它们一个接一个地安装在本地存储库（install:install-file中），但是您可能会花费数天的时间来安装数十个工件（可能是数百个）。