# MyBB import script error **URL:** https://meta.discourse.org/t/mybb-import-script-error/155584 **Category:** Migration **Tags:** mybb **Created:** [June 22, 2020, 4:10pm UTC](https://meta.discourse.org/t/mybb-import-script-error/155584 "2020-06-22T16:10:33Z") **Posts on this page:** 1 **Page:** 1
### Author: ![Newuser](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/newuser/32/184725_2.png) [@Newuser](https://meta.discourse.org/u/Newuser) #### Post date: [June 22, 2020, 4:10pm UTC](https://meta.discourse.org/t/mybb-import-script-error/155584/1 "2020-06-22T16:10:33Z")
Hi there, Currently I’m trying to migrate my forum from MyBB to Discourse. So far without success, despite having read several topics about it. This is what I have done so far at my latest attempt: - Downloaded the database from MyBB (mybb.sql), uploaded it to the Discourse server - Created a database named mybb in mysql and then put mybb.sql into it Then, following the steps mentioned [here](https://meta.discourse.org/t/migrating-from-mybb/25563/2): - cd /var/discourse - ./launcher enter app - su - discourse - gem install mysql2 - cd /var/www/discourse/script/import\_scripts - nano mybb.rb and put the details of the mybb details into it - ruby mybb.rb But during this last step, I’m currently stuck at this error: ```plaintext discourse@debian94-app:/var/www/discourse/script/import_scripts$ ruby mybb.rb Traceback (most recent call last): 18: from mybb.rb:4:in `
' 17: from /usr/local/lib/ruby/site_ruby/2.6.0/rubygems/core_ext/kernel_require.rb:92:in `require' 16: from /usr/local/lib/ruby/site_ruby/2.6.0/rubygems/core_ext/kernel_require.rb:92:in `require' 15: from /var/www/discourse/script/import_scripts/base.rb:16:in `' 14: from /var/www/discourse/script/import_scripts/base.rb:16:in `require_relative' 13: from /var/www/discourse/config/environment.rb:4:in `' 12: from /usr/local/lib/ruby/site_ruby/2.6.0/rubygems/core_ext/kernel_require.rb:92:in `require' 11: from /usr/local/lib/ruby/site_ruby/2.6.0/rubygems/core_ext/kernel_require.rb:92:in `require' 10: from /var/www/discourse/config/application.rb:54:in `' 9: from /var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.3.1/lib/active_support/dependencies.rb:324:in `require' 8: from /var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.3.1/lib/active_support/dependencies.rb:291:in `load_dependency' 7: from /var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.3.1/lib/active_support/dependencies.rb:324:in `block in require' 6: from /var/www/discourse/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.6/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:31:in `require' 5: from /var/www/discourse/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.6/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require_with_bootsnap_lfi' 4: from /var/www/discourse/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.6/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register' 3: from /var/www/discourse/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.6/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `block in require_with_bootsnap_lfi' 2: from /var/www/discourse/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.6/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `require' 1: from /var/www/discourse/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.6/lib/bootsnap/compile_cache/iseq.rb:38:in `load_iseq' /var/www/discourse/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.6/lib/bootsnap/compile_cache/iseq.rb:38:in `fetch': Permission denied - bs_fetch:atomic_write_cache_file:open (Errno::EACCES) 19: from mybb.rb:4:in `
' 18: from /usr/local/lib/ruby/site_ruby/2.6.0/rubygems/core_ext/kernel_require.rb:92:in `require' 17: from /usr/local/lib/ruby/site_ruby/2.6.0/rubygems/core_ext/kernel_require.rb:92:in `require' 16: from /var/www/discourse/script/import_scripts/base.rb:16:in `' 15: from /var/www/discourse/script/import_scripts/base.rb:16:in `require_relative' 14: from /var/www/discourse/config/environment.rb:4:in `' 13: from /usr/local/lib/ruby/site_ruby/2.6.0/rubygems/core_ext/kernel_require.rb:92:in `require' 12: from /usr/local/lib/ruby/site_ruby/2.6.0/rubygems/core_ext/kernel_require.rb:92:in `require' 11: from /var/www/discourse/config/application.rb:54:in `' 10: from /var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.3.1/lib/active_support/dependencies.rb:324:in `require' 9: from /var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.3.1/lib/active_support/dependencies.rb:291:in `load_dependency' 8: from /var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.3.1/lib/active_support/dependencies.rb:324:in `block in require' 7: from /var/www/discourse/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.6/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:31:in `require' 6: from /var/www/discourse/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.6/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require_with_bootsnap_lfi' 5: from /var/www/discourse/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.6/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register' 4: from /var/www/discourse/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.6/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `block in require_with_bootsnap_lfi' 3: from /var/www/discourse/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.6/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `require' 2: from /var/www/discourse/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.6/lib/bootsnap/compile_cache/iseq.rb:34:in `load_iseq' 1: from /var/www/discourse/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.6/lib/bootsnap/compile_cache/iseq.rb:44:in `rescue in load_iseq' /var/www/discourse/vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.6/lib/bootsnap/compile_cache.rb:29:in **`permission_error': bootsnap doesn't have permission to write cache entries in 'tmp/cache/bootsnap-compile-cache' (or, less likely, doesn't have permission to read '/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/pry-rails-0.3.9/lib/pry-rails.rb') (Bootsnap::CompileCache::PermissionError)** ``` I have already tried this: - Change the user back to root - `chmod -R 777 tmp/cache/bootsnap-compile-cache` - `chmod -R 777 /var/www/discourse/vendor/bundle/ruby/2.6.0/gems` - Then changing the user back to discourse with su - discourse But that didn’t help. Does anyone know how to solve this?