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嗨，我无法弄清楚实际问题是什么。我正在使用 rails 2.3.18 和 ruby​​ 1.8.7 错误的堆栈跟踪如下

  …tivesupport-2.3.18/lib/active_support/json/encoding.rb:  68:in `unpack'
…tivesupport-2.3.18/lib/active_support/json/encoding.rb:  68:in `escape'
…tivesupport-2.3.18/lib/active_support/json/encoding.rb:  63:in `gsub'
…tivesupport-2.3.18/lib/active_support/json/encoding.rb:  63:in `escape'
…port-2.3.18/lib/active_support/json/encoders/string.rb:   3:in `to_json'
…tivesupport-2.3.18/lib/active_support/json/encoding.rb:  79:in `encode'
…tivesupport-2.3.18/lib/active_support/json/encoding.rb:  18:in `__send__'
…tivesupport-2.3.18/lib/active_support/json/encoding.rb:  18:in `encode'
…-2.3.18/lib/active_support/json/encoders/enumerable.rb:  11:in `to_json'
…-2.3.18/lib/active_support/json/encoders/enumerable.rb:  11:in `map'
…-2.3.18/lib/active_support/json/encoders/enumerable.rb:  11:in `to_json'
…tivesupport-2.3.18/lib/active_support/json/encoding.rb:  79:in `encode'
…tivesupport-2.3.18/lib/active_support/json/encoding.rb:  18:in `__send__'
…tivesupport-2.3.18/lib/active_support/json/encoding.rb:  18:in `encode'
…port-2.3.18/lib/active_support/json/encoders/object.rb:   4:in `to_json'
…tivesupport-2.3.18/lib/active_support/json/encoding.rb:  79:in `encode'
…tivesupport-2.3.18/lib/active_support/json/encoding.rb:  18:in `__send__'
…tivesupport-2.3.18/lib/active_support/json/encoding.rb:  18:in `encode'
…-2.3.18/lib/active_support/json/encoders/enumerable.rb:  11:in `to_json'
…-2.3.18/lib/active_support/json/encoders/enumerable.rb:  11:in `map'
…-2.3.18/lib/active_support/json/encoders/enumerable.rb:  11:in `to_json'
…tivesupport-2.3.18/lib/active_support/json/encoding.rb:  79:in `encode'
…tivesupport-2.3.18/lib/active_support/json/encoding.rb:  18:in `__send__'
…tivesupport-2.3.18/lib/active_support/json/encoding.rb:  18:in `encode'
…upport-2.3.18/lib/active_support/json/encoders/hash.rb:  38:in `to_json'
…s/activesupport-2.3.18/lib/active_support/rescuable.rb:  95:in `map'
…upport-2.3.18/lib/active_support/json/encoders/hash.rb:  37:in `each'
…upport-2.3.18/lib/active_support/json/encoders/hash.rb:  37:in `map'
…upport-2.3.18/lib/active_support/json/encoders/hash.rb:  37:in `to_json'
…tivesupport-2.3.18/lib/active_support/json/encoding.rb:  79:in `encode'
…tivesupport-2.3.18/lib/active_support/json/encoding.rb:  18:in `__send__'
…tivesupport-2.3.18/lib/active_support/json/encoding.rb:  18:in `encode'
…port-2.3.18/lib/active_support/json/encoders/object.rb:   4:in `to_json'
…tivesupport-2.3.18/lib/active_support/json/encoding.rb:  79:in `encode'
…tivesupport-2.3.18/lib/active_support/json/encoding.rb:  18:in `__send__'
…tivesupport-2.3.18/lib/active_support/json/encoding.rb:  18:in `encode'
…upport-2.3.18/lib/active_support/json/encoders/hash.rb:  38:in `to_json'
…s/activesupport-2.3.18/lib/active_support/rescuable.rb:  95:in `map'
…upport-2.3.18/lib/active_support/json/encoders/hash.rb:  37:in `each'
…upport-2.3.18/lib/active_support/json/encoders/hash.rb:  37:in `map'
…upport-2.3.18/lib/active_support/json/encoders/hash.rb:  37:in `to_json'

我不知道如何重现此错误。

Ruby Rails、jQuery、Uploadify - 奇怪的 UTF-8 错误告诉我如何解决这个问题任何人都可以解释什么是问题以及如何重现这个问题？

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