ハマったこと

環境構築中に次のエラーに遭遇。

[!] There was an error parsing `Gemfile`: `windows` is not a
valid platform. The available options are: [:ruby, :ruby_18,
:ruby_19, :ruby_20, :ruby_21, :ruby_22, :ruby_23, :ruby_24,
:ruby_25, :ruby_26, :mri, :mri_18, :mri_19, :mri_20, :mri_21,
:mri_22, :mri_23, :mri_24, :mri_25, :mri_26, :rbx, :truffleruby,
:jruby, :jruby_18, :jruby_19, :mswin, :mswin_18, :mswin_19,
:mswin_20, :mswin_21, :mswin_22, :mswin_23, :mswin_24, :mswin_25,
:mswin_26, :mswin64, :mswin64_19, :mswin64_20, :mswin64_21,
:mswin64_22, :mswin64_23, :mswin64_24, :mswin64_25, :mswin64_26,
:mingw, :mingw_18, :mingw_19, :mingw_20, :mingw_21, :mingw_22,
:mingw_23, :mingw_24, :mingw_25, :mingw_26, :x64_mingw,
:x64_mingw_20, :x64_mingw_21, :x64_mingw_22, :x64_mingw_23,
:x64_mingw_24, :x64_mingw_25, :x64_mingw_26]. Bundler cannot
continue. # from /myapp/Gemfile:21 # ----------------------------
-------------- # # Windows does not include zoneinfo files, so
bundle the tzinfo-data gem > gem "tzinfo-data", platforms: %i[
windows jruby ] # # -------------------------------------------
run bundle lock --add-platform=x86_64-linux [!] There was an
error parsing `Gemfile`: `windows` is not a valid platform. The
available options are: [:ruby, :ruby_18, :ruby_19, :ruby_20,
:ruby_21, :ruby_22, :ruby_23, :ruby_24, :ruby_25, :ruby_26, :mri,
:mri_18, :mri_19, :mri_20, :mri_21, :mri_22, :mri_23, :mri_24,
:mri_25, :mri_26, :rbx, :truffleruby, :jruby, :jruby_18,
:jruby_19, :mswin, :mswin_18, :mswin_19, :mswin_20, :mswin_21,
:mswin_22, :mswin_23, :mswin_24, :mswin_25, :mswin_26, :mswin64,
:mswin64_19, :mswin64_20, :mswin64_21, :mswin64_22, :mswin64_23,
:mswin64_24, :mswin64_25, :mswin64_26, :mingw, :mingw_18,
:mingw_19, :mingw_20, :mingw_21, :mingw_22, :mingw_23, :mingw_24,
:mingw_25, :mingw_26, :x64_mingw, :x64_mingw_20, :x64_mingw_21,
:x64_mingw_22, :x64_mingw_23, :x64_mingw_24, :x64_mingw_25,
:x64_mingw_26]. Bundler cannot continue. # from /myapp/Gemfile:21
# ------------------------------------------- # # Windows does
not include zoneinfo files, so bundle the tzinfo-data gem > gem
"tzinfo-data", platforms: %i[ windows jruby ] # # ---------------
--------------------------- run bundle binstubs bundler [!] There
was an error parsing `Gemfile`: `windows` is not a valid
platform. The available options are: [:ruby, :ruby_18, :ruby_19,
:ruby_20, :ruby_21, :ruby_22, :ruby_23, :ruby_24, :ruby_25,
:ruby_26, :mri, :mri_18, :mri_19, :mri_20, :mri_21, :mri_22,
:mri_23, :mri_24, :mri_25, :mri_26, :rbx, :truffleruby, :jruby,
:jruby_18, :jruby_19, :mswin, :mswin_18, :mswin_19, :mswin_20,
:mswin_21, :mswin_22, :mswin_23, :mswin_24, :mswin_25, :mswin_26,
:mswin64, :mswin64_19, :mswin64_20, :mswin64_21, :mswin64_22,
:mswin64_23, :mswin64_24, :mswin64_25, :mswin64_26, :mingw,
:mingw_18, :mingw_19, :mingw_20, :mingw_21, :mingw_22, :mingw_23,
:mingw_24, :mingw_25, :mingw_26, :x64_mingw, :x64_mingw_20,
:x64_mingw_21, :x64_mingw_22, :x64_mingw_23, :x64_mingw_24,
:x64_mingw_25, :x64_mingw_26]. Bundler cannot continue. # from
/myapp/Gemfile:21 # ------------------------------------------- #
# Windows does not include zoneinfo files, so bundle the tzinfo
data gem > gem "tzinfo-data", platforms: %i[ windows jruby ] # # 
------------------------------------------

エラーの内容

Windowsに特有のgemがある場合に関連するエラーっぽく、
Gemfileのこの辺で発生しているとのこと。

gem "tzinfo-data", platforms: %i[ windows jruby ]

gem "debug", platforms: %i[ mri windows ], require: "debug/prelude"

解決に向け、したこと

このページを参考に、コンテナ内でgem updateとgem "tzinfo-data", platforms: %i[mswin mswin64 mingw x64_mingw jruby ]を行なったものの、エラーは続く。

その後debug辺りでも同じようなエラーが発生していることが気になり、VSCodeにインストールしていたRuby-LSPをアンインストールし、setting.jsonの設定箇所を削除。

直接的な原因がわからないものの、解決。