我正在关注Michael Hartl的Rails教程,并且在某些方面我们将要运行
rails db：migrate：reset
但是,每次我尝试这样做时,我都会遇到有关该文件的权限被拒绝错误
development.sqlite3
我尝试过以下解决方案：
1.关闭所有怀疑使用所述文件的程序并重试任务
2.终止rails控制台,服务器,编辑器和重试任务
3.关闭/重启pc并在重启时执行任务
4.执行rails db：drop
所有这些都无法允许命令运行.唯一可行的解??决方案是手动删除文件并运行rails db：migrate
我在跑步
Rails 5.0.0.1
Ruby 2.2.5p319
Sqlite3 3.14.1
Windows 10 Professional
我的堆栈跟踪是：
** Invoke db:migrate:reset (first_time)
** Invoke db:drop (first_time)
** Invoke db:load_config (first_time)
** Execute db:load_config
** Invoke db:check_protected_environments (first_time)
** Invoke environment (first_time)
** Execute environment
** Invoke db:load_config
** Execute db:check_protected_environments
** Execute db:drop
** Invoke db:drop:_unsafe (first_time)
** Invoke db:load_config
** Execute db:drop:_unsafe
Permission denied @ unlink_internal – %path%/sample_app/db/development.sqlite3
Couldn’t drop database ‘db/development.sqlite3’
rails aborted!
Errno::EACCES: Permission denied @ unlink_internal – %path%/sample_app/db/development.sqlite3
C:/Ruby22-x64/lib/ruby/2.2.0/fileutils.rb:1450:in unlink'
C:/Ruby22-x64/lib/ruby/2.2.0/fileutils.rb:1450:inblock in remove_file’
C:/Ruby22-x64/lib/ruby/2.2.0/fileutils.rb:1458:in platform_support'
C:/Ruby22-x64/lib/ruby/2.2.0/fileutils.rb:1449:inremove_file’
C:/Ruby22-x64/lib/ruby/2.2.0/fileutils.rb:793:in remove_file'
C:/Ruby22-x64/lib/ruby/2.2.0/fileutils.rb:571:inblock in rm’
C:/Ruby22-x64/lib/ruby/2.2.0/fileutils.rb:570:in each'
C:/Ruby22-x64/lib/ruby/2.2.0/fileutils.rb:570:inrm’
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/activerecord-5.0.0.1/lib/active_record/tasks/sqlite_database_tasks.rb:22:in drop'
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/activerecord-5.0.0.1/lib/active_record/tasks/database_tasks.rb:136:indrop’
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/activerecord-5.0.0.1/lib/active_record/tasks/database_tasks.rb:152:in block in drop_current'
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/activerecord-5.0.0.1/lib/active_record/tasks/database_tasks.rb:292:inblock in each_current_configuration’
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/activerecord-5.0.0.1/lib/active_record/tasks/database_tasks.rb:291:in each'
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/activerecord-5.0.0.1/lib/active_record/tasks/database_tasks.rb:291:ineach_current_configuration’
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/activerecord-5.0.0.1/lib/active_record/tasks/database_tasks.rb:151:in drop_current'
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/activerecord-5.0.0.1/lib/active_record/railties/databases.rake:42:inblock (2 levels) in ‘
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rake-11.2.2/lib/rake/task.rb:248:in call'
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rake-11.2.2/lib/rake/task.rb:248:inblock in execute’
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rake-11.2.2/lib/rake/task.rb:243:in each'
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rake-11.2.2/lib/rake/task.rb:243:inexecute’
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rake-11.2.2/lib/rake/task.rb:187:in block in invoke_with_call_chain'
C:/Ruby22-x64/lib/ruby/2.2.0/monitor.rb:211:inmon_synchronize’
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rake-11.2.2/lib/rake/task.rb:180:in invoke_with_call_chain'
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rake-11.2.2/lib/rake/task.rb:173:ininvoke’
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/activerecord-5.0.0.1/lib/active_record/railties/databases.rake:38:in block (2 levels) in <top (required)>'
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rake-11.2.2/lib/rake/task.rb:248:incall’
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rake-11.2.2/lib/rake/task.rb:248:in block in execute'
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rake-11.2.2/lib/rake/task.rb:243:ineach’
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rake-11.2.2/lib/rake/task.rb:243:in execute'
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rake-11.2.2/lib/rake/task.rb:187:inblock in invoke_with_call_chain’
C:/Ruby22-x64/lib/ruby/2.2.0/monitor.rb:211:in mon_synchronize'
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rake-11.2.2/lib/rake/task.rb:180:ininvoke_with_call_chain’
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rake-11.2.2/lib/rake/task.rb:209:in block in invoke_prerequisites'
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rake-11.2.2/lib/rake/task.rb:207:ineach’
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rake-11.2.2/lib/rake/task.rb:207:in invoke_prerequisites'
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rake-11.2.2/lib/rake/task.rb:186:inblock in invoke_with_call_chain’
C:/Ruby22-x64/lib/ruby/2.2.0/monitor.rb:211:in mon_synchronize'
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rake-11.2.2/lib/rake/task.rb:180:ininvoke_with_call_chain’
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rake-11.2.2/lib/rake/task.rb:173:in invoke'
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rake-11.2.2/lib/rake/application.rb:152:ininvoke_task’
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rake-11.2.2/lib/rake/application.rb:108:in block (2 levels) in top_level'
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rake-11.2.2/lib/rake/application.rb:108:ineach’
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rake-11.2.2/lib/rake/application.rb:108:in block in top_level'
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rake-11.2.2/lib/rake/application.rb:117:inrun_with_threads’
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rake-11.2.2/lib/rake/application.rb:102:in top_level'
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-5.0.0.1/lib/rails/commands/rake_proxy.rb:13:inblock in run_rake_task’
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rake-11.2.2/lib/rake/application.rb:178:in standard_exception_handling'
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-5.0.0.1/lib/rails/commands/rake_proxy.rb:10:inrun_rake_task’
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-5.0.0.1/lib/rails/commands/commands_tasks.rb:51:in run_command!'
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-5.0.0.1/lib/rails/commands.rb:18:in‘
bin/rails:4:in require'
bin/rails:4:in‘
Tasks: TOP => db:drop:_unsafe
如何删除此错误并防止将来的项目？
我使用Windows 10 Pro获得相同的错误ruby2.4.1 | Rails 5.1.4.我使用了：
rake db:drop:_unsafe
rake db:create
rake db:migrate
