Flutter devtools error 255 on Mac. Anyone else getting it?

[Nolan Mayersky]

Anyone run into this error on mac? I keep getting it in vscode. No idea why. flutter doctor says everything is fine. 

"Dart DevTools exited with code 255. Would you like to try reactivating DevTools?"

Here's version info for Flutter and Dart. Any help would be greatly appreciated!

I've tried running flutter clean, upgrading devtools, & updating vscode. No cigar.

╭─    ~/flutter/projects/skica    master  

╰─ dart --version 

Dart SDK version: 2.10.0 (stable) (Mon Sep 28 09:21:23 2020 +0200) on "macos_x64" 

 ╭─    ~/flutter/projects/skica    master  

 ╰─ flutter --version 

 Flutter 1.22.0 • channel stable • https://github.com/flutter/flutter.git Framework • revision d408d302e2 (5 days ago) • 2020-09-29 11:49:17 -0700 Engine • revision 5babba6c4d Tools • Dart 2.10.0