Error while walking package exports #852
Description
Given the following exports in package.json
"exports": {
".": {
"import": {
"webpack": "./dist/index.import.js",
"default": "./dist/index.import.mjs"
},
"require": "./dist/index.js",
"script": "./dist/index.umd.js",
"default": "./dist/index.import.mjs"
}
},
fails with:
TypeError: Cannot read property '.' of undefined
at walk (C:\VSProjects\github\mobx-keystone\node_modules\microbundle\dist\cli.js:810:22)
at walk (C:\VSProjects\github\mobx-keystone\node_modules\microbundle\dist\cli.js:810:10)
at walk (C:\VSProjects\github\mobx-keystone\node_modules\microbundle\dist\cli.js:810:10)
at walk (C:\VSProjects\github\mobx-keystone\node_modules\microbundle\dist\cli.js:810:10)
at getMain (C:\VSProjects\github\mobx-keystone\node_modules\microbundle\dist\cli.js:837:53)
at createConfig (C:\VSProjects\github\mobx-keystone\node_modules\microbundle\dist\cli.js:927:45)
at microbundle (C:\VSProjects\github\mobx-keystone\node_modules\microbundle\dist\cli.js:659:18)
Apparently it is first walking inside the ".", then inside "import" and then it fails because "import" is an object without ".", "import" or "module"
It used to work in 0.13.1 but started failing in 0.13.2 and 0.13.3