yarn run prepack fails for newly generated plugin

[amtrack]

Summary

yarn run prepack throws error TS2440: Import declaration conflicts with local declaration of 'ConfigContents'

Steps To Reproduce:

$ sfdx plugins:generate foo # accept all defaults
$ cd foo
$ yarn run prepack

Expected result

yarn run prepack should succeed

Actual result

yarn run v1.19.1
$ rm -rf lib && tsc -b && oclif-dev manifest && oclif-dev readme
node_modules/@salesforce/core/lib/config/configStore.d.ts:4:10 - error TS2440: Import declaration conflicts with local declaration of 'ConfigContents'.

4 import { ConfigContents } from './configStore';
           ~~~~~~~~~~~~~~


Found 1 error.

error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

Additional information

It seems that this started to fail since typescript was being resolved to v3.7.2 on generating the plugin.

SFDX CLI Version: sfdx-cli/7.33.2 darwin-x64 node-v12.12.0

$ sfdx plugins --core
@oclif/plugin-commands 1.2.3 (core)
@oclif/plugin-help 2.2.1 (core)
@oclif/plugin-not-found 1.2.3 (core)
@oclif/plugin-plugins 1.7.8 (core)
@oclif/plugin-update 1.3.9 (core)
@oclif/plugin-warn-if-update-available 1.7.0 (core)
@oclif/plugin-which 1.0.3 (core)
@salesforce/sfdx-trust 3.0.7 (core)
analytics 1.2.2 (core)
generator 1.1.2 (core)
salesforcedx 47.6.2 (core)
├─ salesforce-alm 47.9.0 (core)
└─ salesforcedx-templates 47.6.2 (core)
sfdx-cli 7.33.2 (core)

OS and version: MacOS Catalina (10.15.1)

[tnoonan-salesforce]

I just published a new version of core with this fix.

https://www.npmjs.com/package/@salesforce/core

2.1.5

You'll need to delete the yarn.lock and run yarn again.

[amtrack]

@tnoonan-salesforce Thanks! 👍

[dieffrei]

@amtrack does it work for you?
I updated dependency in my package.json file and deleted yarn.lock and still getting the same error.
$ rm -rf lib && tsc -b && oclif-dev manifest && oclif-dev readme
node_modules/@salesforce/command/node_modules/@salesforce/core/lib/config/configStore.d.ts:4:10 - error TS2440: Import declaration conflicts with local declaration of 'ConfigContents'.

[amtrack]

@dieffrei Yes, deleting the yarn.lock and running yarn again to regenerate the file actually worked for me.
If this problem still persists as you described, I would try to inspect the yarn.lock file and search for different versions of @salesforce/core to determine packages that might depend on older version.
Also make sure that there is no package-lock.json file by accident.
Is the the git repo publicly available which you're having problems with, so I could have a look?

[dieffrei]

Thank you @amtrack It helped!