From 7f4cc0d3fafe465de5f8dc4561087c603bebf2cd Mon Sep 17 00:00:00 2001
From: Manuel Conde Vendrell <manu_conde@hotmail.com>
Date: Thu, 15 Oct 2020 12:49:16 +0200
Subject: [PATCH] Added an important note to work on clean systems

---
 README.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/README.md b/README.md
index dba8a00..41b4ad3 100644
--- a/README.md
+++ b/README.md
@@ -23,6 +23,10 @@ Install library
 
 `npm install ng-thermal-print`
 
+NOTE: if when compiling project you get an error like this:
+`ERROR in node_modules/ng-thermal-print/lib/drivers/UsbDriver.d.ts:16:30 - error TS2304: Cannot find name 'USBDevice'. requestUsb(): Observable;`
+then add reference to w3c-web-usb by installing it with command: `npm install @types/w3c-web-usb --only=dev`
+
 Import into your application
 
     import { BrowserModule } from '@angular/platform-browser';