我试图通过 GitHub codespace 运行 instructure 的 canvas-lms 并遇到以下问题。我正在使用免费的 4 核心计划。可以在 here 找到代码空间设置的存储库和说明。在尝试在 GitHub 代码空间中运行分叉的 canvas-lms 时，是否有人在使用 bundle exec rails canvas:compile_assets 后遇到过这个问题？这样做后我应该能够运行 bundle exec rails db:initial_setup 以接收身份验证提示。
我运行以下命令：
sudo apt-get update
sudo apt-get -y install postgresql-12 zlib1g-dev libldap2-dev libidn11-dev libxml2-dev libsqlite3-dev libpq-dev libxmlsec1-dev curl build-essential
rvm install "ruby-2.7.0"
rvm use 2.7.0
gem install bundle
gem install bundler:2.3.26
gem install nokogumbo scrypt sanitize ruby-debug-ide
sudo chown -R codespace:codespace /workspaces/canvas-lms/
sudo chown -R codespace:codespace /usr/local/rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0
bundle _2.3.26_ install
yarn install --pure-lockfile
for config in amazon_s3 delayed_jobs domain file_store outgoing_mail security external_migration dynamic_settings database; \
do cp -v config/$config.yml.example config/$config.yml; done
bundle _2.3.26_ update
sudo chown -R codespace:codespace /var/run/postgresql/
export PGHOST=localhost
/usr/lib/postgresql/12/bin/initdb \~/postgresql-data/ -E utf8
/usr/lib/postgresql/12/bin/pg_ctl -D \~/postgresql-data/ -l \~/postgresql-data/server.log start
/usr/lib/postgresql/12/bin/createdb canvas_development
bundle exec rails canvas:compile_assets
**此时抛出如下错误：
Top level ::CompositeIO is deprecated, require 'multipart/post' and use `Multipart::Post::CompositeReadIO` instead!
Top level ::Parts is deprecated, require 'multipart/post' and use `Multipart::Post::Parts` instead!
/usr/local/rvm/gems/ruby-2.7.0/gems/faraday-0.17.4/lib/faraday/upload_io.rb:65: warning: constant ::UploadIO is deprecated
/usr/local/rvm/gems/ruby-2.7.0/gems/faraday-0.17.4/lib/faraday/upload_io.rb:66: warning: constant ::Parts is deprecated
rails aborted!
TypeError: Post is not a class
当我运行 bundle exec rails canvas:compile_assets –trace 时，显示如下：
Top level ::CompositeIO is deprecated, require 'multipart/post' and use `Multipart::Post::CompositeReadIO` instead!
Top level ::Parts is deprecated, require 'multipart/post' and use `Multipart::Post::Parts` instead!
/usr/local/rvm/gems/ruby-2.7.0/gems/faraday-0.17.4/lib/faraday/upload_io.rb:65: warning: constant ::UploadIO is deprecated
/usr/local/rvm/gems/ruby-2.7.0/gems/faraday-0.17.4/lib/faraday/upload_io.rb:66: warning: constant ::Parts is deprecated
rails aborted!
TypeError: Post is not a class
/usr/local/rvm/gems/ruby-2.7.0/gems/multipart-post-2.3.0/lib/multipart/post/parts.rb:25: previous definition of Post was here
/workspaces/canvas-lms/gems/multipart/lib/multipart/post.rb:23:in `<module:Multipart>' /workspaces/canvas-lms/gems/multipart/lib/multipart/post.rb:22:in `\<main\>'
/usr/local/rvm/gems/ruby-2.7.0/gems/bootsnap-1.13.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:32:in `require' /usr/local/rvm/gems/ruby-2.7.0/gems/bootsnap-1.13.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:32:in `require'
/usr/local/rvm/gems/ruby-2.7.0/gems/zeitwerk-2.6.7/lib/zeitwerk/kernel.rb:38:in `require' /workspaces/canvas-lms/gems/multipart/lib/multipart.rb:40:in `\<module:Multipart\>'
/workspaces/canvas-lms/gems/multipart/lib/multipart.rb:35:in `<main>' /usr/local/rvm/gems/ruby-2.7.0/gems/bootsnap-1.13.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:32:in `require'
/usr/local/rvm/gems/ruby-2.7.0/gems/bootsnap-1.13.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:32:in `require' /usr/local/rvm/gems/ruby-2.7.0/gems/zeitwerk-2.6.7/lib/zeitwerk/kernel.rb:38:in `require'
/workspaces/canvas-lms/gems/canvas_kaltura/lib/canvas_kaltura/kaltura_client_v3.rb:26:in `<main>' /usr/local/rvm/gems/ruby-2.7.0/gems/bootsnap-1.13.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:32:in `require'
/usr/local/rvm/gems/ruby-2.7.0/gems/bootsnap-1.13.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:32:in `require' /usr/local/rvm/gems/ruby-2.7.0/gems/zeitwerk-2.6.7/lib/zeitwerk/kernel.rb:38:in `require'
/workspaces/canvas-lms/gems/canvas_kaltura/lib/canvas_kaltura.rb:24:in `<module:CanvasKaltura>' /workspaces/canvas-lms/gems/canvas_kaltura/lib/canvas_kaltura.rb:23:in `\<main\>'
/usr/local/rvm/gems/ruby-2.7.0/gems/bootsnap-1.13.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:32:in `require' /usr/local/rvm/gems/ruby-2.7.0/gems/bootsnap-1.13.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:32:in `require'
/usr/local/rvm/gems/ruby-2.7.0/gems/zeitwerk-2.6.7/lib/zeitwerk/kernel.rb:38:in `require' /usr/local/rvm/gems/ruby-2.7.0/gems/bundler-2.3.26/lib/bundler/runtime.rb:60:in `block (2 levels) in require'
/usr/local/rvm/gems/ruby-2.7.0/gems/bundler-2.3.26/lib/bundler/runtime.rb:55:in `each' /usr/local/rvm/gems/ruby-2.7.0/gems/bundler-2.3.26/lib/bundler/runtime.rb:55:in `block in require'
/usr/local/rvm/gems/ruby-2.7.0/gems/bundler-2.3.26/lib/bundler/runtime.rb:44:in `each' /usr/local/rvm/gems/ruby-2.7.0/gems/bundler-2.3.26/lib/bundler/runtime.rb:44:in `require'
/usr/local/rvm/gems/ruby-2.7.0/gems/bundler-2.3.26/lib/bundler.rb:186:in `require' /workspaces/canvas-lms/config/application.rb:28:in `\<main\>'
/usr/local/rvm/gems/ruby-2.7.0/gems/bootsnap-1.13.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:32:in `require' /usr/local/rvm/gems/ruby-2.7.0/gems/bootsnap-1.13.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:32:in `require'
/workspaces/canvas-lms/Rakefile:6:in `<main>' /usr/local/rvm/gems/ruby-2.7.0/gems/rake-13.0.3/lib/rake/rake_module.rb:29:in `load'
/usr/local/rvm/gems/ruby-2.7.0/gems/rake-13.0.3/lib/rake/rake_module.rb:29:in `load_rakefile' /usr/local/rvm/gems/ruby-2.7.0/gems/rake-13.0.3/lib/rake/application.rb:703:in `raw_load_rakefile'
/usr/local/rvm/gems/ruby-2.7.0/gems/rake-13.0.3/lib/rake/application.rb:104:in `block in load_rakefile' /usr/local/rvm/gems/ruby-2.7.0/gems/rake-13.0.3/lib/rake/application.rb:186:in `standard_exception_handling'
/usr/local/rvm/gems/ruby-2.7.0/gems/rake-13.0.3/lib/rake/application.rb:103:in `load_rakefile' /usr/local/rvm/gems/ruby-2.7.0/gems/railties-7.0.3/lib/rails/commands/rake/rake_command.rb:20:in `block in perform'
/usr/local/rvm/gems/ruby-2.7.0/gems/rake-13.0.3/lib/rake/rake_module.rb:59:in `with_application' /usr/local/rvm/gems/ruby-2.7.0/gems/railties-7.0.3/lib/rails/commands/rake/rake_command.rb:18:in `perform'
/usr/local/rvm/gems/ruby-2.7.0/gems/railties-7.0.3/lib/rails/command.rb:51:in `invoke' /usr/local/rvm/gems/ruby-2.7.0/gems/railties-7.0.3/lib/rails/commands.rb:18:in `\<main\>'
/usr/local/rvm/gems/ruby-2.7.0/gems/bootsnap-1.13.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:32:in `require' /usr/local/rvm/gems/ruby-2.7.0/gems/bootsnap-1.13.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:32:in `require'
/workspaces/canvas-lms/bin/rails:16:in `<top (required)>' /usr/local/rvm/gems/ruby-2.7.0/gems/spring-4.0.0/lib/spring/client/rails.rb:30:in `load'
/usr/local/rvm/gems/ruby-2.7.0/gems/spring-4.0.0/lib/spring/client/rails.rb:30:in `call' /usr/local/rvm/gems/ruby-2.7.0/gems/spring-4.0.0/lib/spring/client/command.rb:7:in `call'
/usr/local/rvm/gems/ruby-2.7.0/gems/spring-4.0.0/lib/spring/client.rb:30:in `run' /usr/local/rvm/gems/ruby-2.7.0/gems/spring-4.0.0/bin/spring:49:in `\<top (required)\>'
/usr/local/rvm/gems/ruby-2.7.0/gems/spring-4.0.0/lib/spring/binstub.rb:11:in `load' /usr/local/rvm/gems/ruby-2.7.0/gems/spring-4.0.0/lib/spring/binstub.rb:11:in `\<top (required)\>'
/workspaces/canvas-lms/bin/spring:21:in `require' /workspaces/canvas-lms/bin/spring:21:in `\<top (required)\>'
bin/rails:5:in `load' bin/rails:5:in `\<main\>'
我找到了解决方法。请不要将此视为好建议 - 这只是我在尝试让开发 Canvas 环境在 Github 代码空间中运行时有用的东西。 未来很可能会出现我尚未遇到的某种错误，但这足以让我在开发项目中使用 Canvas 代码空间。
我看到 Post 不是类 错误。确实如此，但我在网上搜索了类似的错误，并看到有关重复类名的讨论是一个潜在的问题。因此，我改变了一些东西。
我能够再次运行 canvas:compile_assets 命令并且没有出现相同的错误。然而，在大部分编译似乎工作之后，我收到了一个新错误。错误：
--> 完成：'js:webpack_development' 在 100.79s rails 中止！ Parallel::UndumpableException: ActiveRecord::StatementInvalid: PG::UndefinedTable：错误：关系“public.brand_configs”不 第 1 行：从“public”中删除。“brand_configs”在哪里（不存在 （选择... ^ /workspaces/canvas-lms/config/initializers/active_record.rb:1430:in
delete_all'/workspaces/canvas-lms/app/models/brand_config.rb:266:in `clean_unused_from_db！'delete_all' /workspaces/canvas-lms/config/initializers/active_record.rb:1462:in
我再次搜索类似的错误，发现这个讨论：https://github.com/instructure/canvas-lms/issues/2023
讨论给了我一个测试命令：
COMPILE_ASSETS_BRAND_CONFIGS=0 RAILS_ENV=production bundle exec rake 画布：compile_assets
命令显然是“生产”，但它让我顺利通过了 compile_assets。我能够使用凭据初始化数据库，在代码空间中启动 Canvas，并且到目前为止能够将其用于我正在进行的开发。