的Gemfile

Question

我知道这类问题已经被问到了。

我使用s3 gem在s3存储桶中上传文件。但是在s3 gem安装之后，当我启动rails服务器时，它会显示以下错误：

    /var/lib/gems/1.9.1/gems/aws-s3-0.6.3/lib/aws/s3/extensions.rb:223:in `class_eval': /var/lib/gems/1.9.1/gems/aws-s3-0.6.3/lib/aws/s3/extensions.rb:223: `@@{' is not allowed as a class variable name (SyntaxError)
/var/lib/gems/1.9.1/gems/aws-s3-0.6.3/lib/aws/s3/extensions.rb:223: syntax error, unexpected $end
        unless defined? @@{:instance_writer=>true}
                          ^
    from /var/lib/gems/1.9.1/gems/aws-s3-0.6.3/lib/aws/s3/extensions.rb:223:in `block in cattr_reader'
    from /var/lib/gems/1.9.1/gems/aws-s3-0.6.3/lib/aws/s3/extensions.rb:222:in `each'
    from /var/lib/gems/1.9.1/gems/aws-s3-0.6.3/lib/aws/s3/extensions.rb:222:in `cattr_reader'
    from /var/lib/gems/1.9.1/gems/aws-s3-0.6.3/lib/aws/s3/extensions.rb:258:in `cattr_accessor'
    from /var/lib/gems/1.9.1/gems/activesupport-4.1.5/lib/active_support/cache.rb:155:in `<class:Store>'
    from /var/lib/gems/1.9.1/gems/activesupport-4.1.5/lib/active_support/cache.rb:154:in `<module:Cache>'
    from /var/lib/gems/1.9.1/gems/activesupport-4.1.5/lib/active_support/cache.rb:14:in `<module:ActiveSupport>'
    from /var/lib/gems/1.9.1/gems/activesupport-4.1.5/lib/active_support/cache.rb:12:in `<top (required)>'
    from /var/lib/gems/1.9.1/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:247:in `require'
    from /var/lib/gems/1.9.1/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:247:in `block in require'
    from /var/lib/gems/1.9.1/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:232:in `load_dependency'
    from /var/lib/gems/1.9.1/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:247:in `require'
    from /var/lib/gems/1.9.1/gems/jbuilder-2.2.5/lib/jbuilder/jbuilder_template.rb:3:in `<top (required)>'
    from /var/lib/gems/1.9.1/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:247:in `require'
    from /var/lib/gems/1.9.1/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:247:in `block in require'
    from /var/lib/gems/1.9.1/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:232:in `load_dependency'
    from /var/lib/gems/1.9.1/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:247:in `require'
    from /var/lib/gems/1.9.1/gems/jbuilder-2.2.5/lib/jbuilder/railtie.rb:2:in `<top (required)>'
    from /var/lib/gems/1.9.1/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:247:in `require'
    from /var/lib/gems/1.9.1/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:247:in `block in require'
    from /var/lib/gems/1.9.1/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:232:in `load_dependency'
    from /var/lib/gems/1.9.1/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:247:in `require'
    from /var/lib/gems/1.9.1/gems/jbuilder-2.2.5/lib/jbuilder.rb:317:in `<top (required)>'
    from /var/lib/gems/1.9.1/gems/bundler-1.6.2/lib/bundler/runtime.rb:76:in `require'
    from /var/lib/gems/1.9.1/gems/bundler-1.6.2/lib/bundler/runtime.rb:76:in `block (2 levels) in require'
    from /var/lib/gems/1.9.1/gems/bundler-1.6.2/lib/bundler/runtime.rb:72:in `each'
    from /var/lib/gems/1.9.1/gems/bundler-1.6.2/lib/bundler/runtime.rb:72:in `block in require'
    from /var/lib/gems/1.9.1/gems/bundler-1.6.2/lib/bundler/runtime.rb:61:in `each'
    from /var/lib/gems/1.9.1/gems/bundler-1.6.2/lib/bundler/runtime.rb:61:in `require'
    from /var/lib/gems/1.9.1/gems/bundler-1.6.2/lib/bundler.rb:132:in `require'
    from /home/rick/rick/Projects/practice/sharebox/config/application.rb:7:in `<top (required)>'
    from /var/lib/gems/1.9.1/gems/railties-4.1.5/lib/rails/commands/commands_tasks.rb:79:in `require'
    from /var/lib/gems/1.9.1/gems/railties-4.1.5/lib/rails/commands/commands_tasks.rb:79:in `block in server'
    from /var/lib/gems/1.9.1/gems/railties-4.1.5/lib/rails/commands/commands_tasks.rb:76:in `tap'
    from /var/lib/gems/1.9.1/gems/railties-4.1.5/lib/rails/commands/commands_tasks.rb:76:in `server'
    from /var/lib/gems/1.9.1/gems/railties-4.1.5/lib/rails/commands/commands_tasks.rb:40:in `run_command!'
    from /var/lib/gems/1.9.1/gems/railties-4.1.5/lib/rails/commands.rb:17:in `<top (required)>'
    from bin/rails:4:in `require'
    from bin/rails:4:in `<main>'

有谁知道，如何解决这个错误？我应该尝试另一种宝石吗？

Answer 1

是的，我刚刚遇到这个问题并解决了。这是因为AWS将他们的gem更新为2.0。如果您将gem更新为2.0，则根据他们发布的article，需要进行不同的配置。

如果您想使用之前的版本，只需更改Gemfile，如下所示：

的Gemfile

gem＆＃39; aws-sdk＆＃39;，＆＃39;＆lt; 2.0＆＃39;

Answer 2

今天早上我们遇到了同样的问题。我们已经安装了这个aws-sdk gem但它昨天更新到了版本2。似乎版本2不再修复此问题所以我建议使用最新版本1：1.61.0

使用s3 gem + rails 4.1.5时，不允许使用`@@ {'作为类变量名（SyntaxError）

2 个答案:

的Gemfile