ubuntu setup fixes (#281)

Hotfix for Ubuntu

Author: andreamah

README.md

@@ -16,6 +16,9 @@ You will be prompted to install the Python dependencies during the first use.
 - _**[Python 3.7+](https://www.python.org/downloads/)**_: Make sure you've added python and pip to your PATH in your environment variables. (1)
 - _**[Python VS Code extension](https://marketplace.visualstudio.com/items?itemName=ms-python.python)**_: This will be installed automatically from the marketplace when you install Device Simulator Express.
 
+### Linux-only Requirements
+To successfully run the virtual environment setup on your first run, please run the following command: `sudo apt install python3.8-venv`
+
 ## Circuit Playground Express (CPX) Simulator
 
 ### Features

src/extension.ts

@@ -30,7 +30,7 @@ import { DeviceSelectionService } from "./service/deviceSelectionService";
 import { FileSelectionService } from "./service/fileSelectionService";
 import { MessagingService } from "./service/messagingService";
 import { PopupService } from "./service/PopupService";
-import { SetupService } from "./service/SetupService";
+import { SetupService } from "./service/setupService";
 import { SimulatorDebugConfigurationProvider } from "./simulatorDebugConfigurationProvider";
 import getPackageInfo from "./telemetry/getPackageInfo";
 import TelemetryAI from "./telemetry/telemetryAI";