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Rails 4.2→5.2アップデート

Rails 4.2→5.2アップデート

Rails 4.2を5.2にアップデートした時の流れをまとめました。

horikawa

May 29, 2019
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  1. image_tag໰୊ • ۩ମతʹ͸ɺ • Can't resolve image into URL: undefined

    method `to_model' for #<MyUploader:xxxxxxxxxx>
 Did you mean? to_xml • ͳΔΤϥʔ͕ग़·͢