Cannot read property 'map' of undefined

[stanta]

Bug Report

Upgraded to Embark 5.0.

Summary

Current behavior

When type "embark build", get: Cannot read property 'map' of undefined
Deleting local node_modules, repeating install from scratch. This error repeats.
Solc@0.6.1, .sol files compiled by hands properly.

How to reproduce

embark build

/home/st/.nvm/versions/node/v10.17.0/lib/node_modules/embark/node_modules/core-js-pure/es/instance/map.js:6
var own = it.map;
^
TypeError: Cannot read property 'map' of undefined
at module.exports (/home/st/.nvm/versions/node/v10.17.0/lib/node_modules/embark/node_modules/core-js-pure/es/instance/map.js:6:16)
at Config.loadEmbarkConfigFile (/home/st/.nvm/versions/node/v10.17.0/lib/node_modules/embark/node_modules/embark-core/src/config.ts:658:32)
at Config.loadEmbarkConfigFile [as loadConfigFiles] (/home/st/.nvm/versions/node/v10.17.0/lib/node_modules/embark/node_modules/embark-core/src/config.ts:186:10)
at Engine.loadConfigFiles [as init] (/home/st/.nvm/versions/node/v10.17.0/lib/node_modules/embark/node_modules/embark-engine/src/index.ts:89:17)
at init (/home/st/.nvm/versions/node/v10.17.0/lib/node_modules/embark/src/cmd/cmd_controller.js:274:16)
at nextTask (/home/st/.nvm/versions/node/v10.17.0/lib/node_modules/embark/node_modules/async/dist/async.js:5324:14)
at Object.waterfall (/home/st/.nvm/versions/node/v10.17.0/lib/node_modules/embark/node_modules/async/dist/async.js:5334:5)
at EmbarkController.waterfall [as build] (/home/st/.nvm/versions/node/v10.17.0/lib/node_modules/embark/src/cmd/cmd_controller.js:272:11)
at Command.build (/home/st/.nvm/versions/node/v10.17.0/lib/node_modules/embark/src/cmd/cmd.js:138:16)
at Command.listener (/home/st/.nvm/versions/node/v10.17.0/lib/node_modules/embark/node_modules/commander/index.js:315:8)
at Command.emit (events.js:198:13)
at Command.parseArgs (/home/st/.nvm/versions/node/v10.17.0/lib/node_modules/embark/node_modules/commander/index.js:654:12)
at Command.parse (/home/st/.nvm/versions/node/v10.17.0/lib/node_modules/embark/node_modules/commander/index.js:474:21)
at Cmd.parse [as process] (/home/st/.nvm/versions/node/v10.17.0/lib/node_modules/embark/src/cmd/cmd.js:36:13)
at EmbarkBin.process [as exec] (/home/st/.nvm/versions/node/v10.17.0/lib/node_modules/embark/src/bin/embark.js:86:7)
at exec (/home/st/.nvm/versions/node/v10.17.0/lib/node_modules/embark/src/bin/embark.js:51:10)

$ embark run --nodashboard --logfile log.txt --loglevel trace

error repeats

/home/st/.nvm/versions/node/v10.17.0/lib/node_modules/embark/node_modules/core-js-pure/es/instance/map.js:6
var own = it.map;
^
TypeError: Cannot read property 'map' of undefined
at module.exports (/home/st/.nvm/versions/node/v10.17.0/lib/node_modules/embark/node_modules/core-js-pure/es/instance/map.js:6:16)
at Config.loadEmbarkConfigFile (/home/st/.nvm/versions/node/v10.17.0/lib/node_modules/embark/node_modules/embark-core/src/config.ts:658:32)
at Config.loadEmbarkConfigFile [as loadConfigFiles] (/home/st/.nvm/versions/node/v10.17.0/lib/node_modules/embark/node_modules/embark-core/src/config.ts:186:10)
at Engine.loadConfigFiles [as init] (/home/st/.nvm/versions/node/v10.17.0/lib/node_modules/embark/node_modules/embark-engine/src/index.ts:89:17)
at init (/home/st/.nvm/versions/node/v10.17.0/lib/node_modules/embark/src/cmd/cmd_controller.js:142:16)
at nextTask (/home/st/.nvm/versions/node/v10.17.0/lib/node_modules/embark/node_modules/async/dist/async.js:5324:14)
at Object.waterfall (/home/st/.nvm/versions/node/v10.17.0/lib/node_modules/embark/node_modules/async/dist/async.js:5334:5)
at EmbarkController.waterfall [as run] (/home/st/.nvm/versions/node/v10.17.0/lib/node_modules/embark/src/cmd/cmd_controller.js:140:11)
at Command.run (/home/st/.nvm/versions/node/v10.17.0/lib/node_modules/embark/src/cmd/cmd.js:160:16)
at Command.listener (/home/st/.nvm/versions/node/v10.17.0/lib/node_modules/embark/node_modules/commander/index.js:315:8)
at Command.emit (events.js:198:13)
at Command.parseArgs (/home/st/.nvm/versions/node/v10.17.0/lib/node_modules/embark/node_modules/commander/index.js:654:12)
at Command.parse (/home/st/.nvm/versions/node/v10.17.0/lib/node_modules/embark/node_modules/commander/index.js:474:21)
at Cmd.parse [as process] (/home/st/.nvm/versions/node/v10.17.0/lib/node_modules/embark/src/cmd/cmd.js:36:13)
at EmbarkBin.process [as exec] (/home/st/.nvm/versions/node/v10.17.0/lib/node_modules/embark/sr

Please provide additional information about your system

OS: Mint 19
Embark Version: 5
Node Version: 10.17.0
NPM Version:6.11.3

Sometimes issues are related to Embark's installation. Can you provide information on how Embark was installed?

as in instruction,

 npm -g install embark

--

[jrainville]

Hi @stanta , sorry that you are experiencing this issue.

Do you have a public repo we could look at and try to replicate on?

I see you say that you upgraded to Embark 5, what was the previous version?
We have a migration guide but it isn't published yet, since we have not officially announced v5. You're one of the first courageous to try it 😉