Cannot find module 'eslint-config-base.js'

[mysticatea]

What version of ESLint are you using?

• v2.11.1

What parser (default, Babel-ESLint, etc.) are you using?

• default.

Please show your full configuration:

• Configuration is the main subject of this issue.
  I use eslint-config-mysticatea sharable config.
  • Case 1 is: {"extends": "mysticatea/es2015"}
  • Case 2 is: {"extends": "mysticatea"}
• Those 2 configs are the same file (es2015.js) because main: "es2015.js"

What did you do? Please include the actual source code causing the issue.

• Lint a file with each case configuration.

What did you expect to happen?

• Both case 1 & 2 work fine. Those 2 config files are the same file.

What actually happened? Please include the actual, raw output from ESLint.

• Case 1 works fine.
• Case 2 does not work.

Cannot find module 'eslint-config-base.js'
Referenced from: mysticatea
Referenced from: C:\Users\t-nagashima.AD\Documents\GitHub\sandbox\.eslintrc.json
Error: Cannot find module 'eslint-config-base.js'
Referenced from: mysticatea
Referenced from: C:\Users\t-nagashima.AD\Documents\GitHub\sandbox\.eslintrc.json
    at Object.ModuleResolver.resolve (C:\Users\t-nagashima.AD\Documents\GitHub\sandbox\node_modules\eslint\lib\util\module-resolver.js:75:19)
    at resolve (C:\Users\t-nagashima.AD\Documents\GitHub\sandbox\node_modules\eslint\lib\config\config-file.js:473:33)
    at load (C:\Users\t-nagashima.AD\Documents\GitHub\sandbox\node_modules\eslint\lib\config\config-file.js:490:24)
    at C:\Users\t-nagashima.AD\Documents\GitHub\sandbox\node_modules\eslint\lib\config\config-file.js:386:36
    at Array.reduceRight (native)
    at applyExtends (C:\Users\t-nagashima.AD\Documents\GitHub\sandbox\node_modules\eslint\lib\config\config-file.js:363:28)
    at load (C:\Users\t-nagashima.AD\Documents\GitHub\sandbox\node_modules\eslint\lib\config\config-file.js:525:22)
    at C:\Users\t-nagashima.AD\Documents\GitHub\sandbox\node_modules\eslint\lib\config\config-file.js:386:36
    at Array.reduceRight (native)
    at applyExtends (C:\Users\t-nagashima.AD\Documents\GitHub\sandbox\node_modules\eslint\lib\config\config-file.js:363:28)

es2015.js has extends: "./base.js", but ESLint searched 'eslint-config-base.js' module.

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This may be related in #6338.