[React]`This can lead to unexpected behavior when compiling on a filesystem with other case-semantic`という警告が出た時

エラー回避用の備忘録

W
This can lead to unexpected behavior when compiling on a filesystem with other case-semantic.
Use equal casing. Compare these module identifiers:

* /Users/nmatsumoto4/Documents/rails/workspace/sampleApp/node_modules/babel-loader/lib/index.js??ref--1!/Users/nmatsumoto4/Documents/rails/workspace/sampleApp/node_modules/b
abel-loader/lib/index.js??ref--4!/Users/nmatsumoto4/Documents/rails/workspace/sampleApp/app/javascript/assets/components/util/MstSelect.js
    Used by 1 module(s), i. e.
    /Users/nmatsumoto4/Documents/rails/workspace/sampleApp/node_modules/babel-loader/lib/index.js??ref--1!/Users/nmatsumoto4/Documents/rails/workspace/sampleApp/node_modules
/babel-loader/lib/index.js??ref--4!/Users/nmatsumoto4/Documents/rails/workspace/sampleApp/app/javascript/assets/components/pages/RollCalls/beforeDrive/selectDriverStep.j
s
* /Users/nmatsumoto4/Documents/rails/workspace/sampleApp/node_modules/babel-loader/lib/index.js??ref--1!/Users/nmatsumoto4/Documents/rails/workspace/sampleApp/node_modules/b
abel-loader/lib/index.js??ref--4!/Users/nmatsumoto4/Documents/rails/workspace/sampleApp/app/javascript/assets/components/util/mstSelect.js
    Used by 2 module(s), i. e.
    /Users/nmatsumoto4/Documents/rails/workspace/sampleApp/node_modules/babel-loader/lib/index.js??ref--1!/Users/nmatsumoto4/Documents/rails/workspace/sampleApp/node_modules
/babel-loader/lib/index.js??ref--4!/Users/nmatsumoto4/Documents/rails/workspace/sampleApp/app/javascript/assets/components/pages/DispachTrucks/addEdit/filterTrucksStep.j
s

これはimportする時に、同じコンポーネントを違う形式でimportするとなる。
この場合は、
selectDriverStep.jsではMstSelect

selectDriverStep.js

import MstSelect from '~/components/util/MstSelect.js'

js:filterTrucksStep.jsではmstSelect

filterTrucksStep.js

import MstSelect from '~/components/util/mstSelect.js'

と読んでおり、同じファイルを異なる識別子で呼んでいる。という警告である。
どちらかに識別子を揃えれば治る。
ちゃんと警告内容見ればわかる内容でした。
(ぐぐるだけじゃダメですね。)