我正在将 Phoenix 从 1.0 更新到 1.2 我按照以下步骤从 1.0 升级到 1.1，然后从 1.1.x 升级到 1.2.0
每当我尝试编译时，都会收到以下错误：
Unchecked dependencies for environment dev:
* phoenix_pubsub_redis (Hex package)
the dependency does not match the requirement "~> 2.1", got "1.0.0"
* phoenix_html (Hex package)
the dependency does not match the requirement "~> 2.6", got "2.2.0"
* phoenix (Hex package)
the dependency does not match the requirement "~> 1.2.0", got "1.0.3"
* phoenix_ecto (Hex package)
the dependency does not match the requirement "~> 3.0-rc", got "1.2.0"
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