When I was following the instruction in this tutorial: https://trailhead.salesforce.com/content/learn/projects/quickstart-vscode-salesforce/use-vscode-for-salesforce, the Authenticate to Your Playground step failed. And in the output console I saw
Starting SFDX: Authorize an Org
15:23:41.710 sfdx force:auth:web:login --setalias VSCodePlayground --instanceurl https://login.salesforce.com --setdefaultusername
› Warning: force:auth:web:login is not a sfdx command.
Did you mean auth:web:login? [y/n]:
› Error: Run sfdx help force for a list of available commands.
15:23:47.396 sfdx force:auth:web:login --setalias VSCodePlayground --instanceurl https://login.salesforce.com --setdefaultusername
ended with exit code 127
I believe it's caused by the new version sfdx cli deprecates the force versions of these commands
SFDX: Authorize an Org in VSCodeThe org is authorized successfully
authorization failed with the error Run sfdx help force for a list of available commands.

VS Code Version: Version: 1.51.1
SFDX CLI Version: sfdx-cli/7.83.0-eba9c6a927 darwin-x64 node-v12.18.3
OS and version: v50.13.0
I resolved the same issue with the plugin
Run this in CMD "sfdx plugin:install @salesforce/[email protected]"
Got solution here https://github.com/forcedotcom/cli/issues/757#issuecomment-741885504
Running sfdx update on my mac terminal fixed this issue for me. Thank you @4388331 for the pointer!
Thank you @4388331. I was also facing the error while running the command 'Authorize dev hub' . After running command "sfdx plugin:install @salesforce/[email protected]" on CMD, it worked fine for me.
I resolved the same issue with the plugin
Run this in CMD "sfdx plugin:install @salesforce/[email protected]"Got solution here forcedotcom/cli#757 (comment)
This fixed the issue for me as well! Thanks for sharing!
Thanks @4388331 - worked for me as well!
as noted above, latest CLI resolved this.
Thanks @4388331.
You solved my problem.
I resolved the same issue with the plugin
Run this in CMD "sfdx plugin:install @salesforce/[email protected]"Got solution here forcedotcom/cli#757 (comment)
Thank you @4388331 ... It works for me :D
I resolved the same issue with the plugin
Run this in CMD "sfdx plugin:install @salesforce/[email protected]"Got solution here forcedotcom/cli#757 (comment)
Thanks for the solution. It worked for me.
I had also got the same issue.
First ran "sfdx update" in cmd.
Then ran "sfdx plugin:install @salesforce/[email protected]"
Got the following warning: " Warning: plugin:install is not a sfdx command".
Gave 'y' for the question "Did you mean plugins:install? [y/n]".
And then it worked.
Most helpful comment
I resolved the same issue with the plugin
Run this in CMD "sfdx plugin:install @salesforce/[email protected]"
Got solution here https://github.com/forcedotcom/cli/issues/757#issuecomment-741885504