If you get this error then follow these steps
1. Create a vendor in QuickBooks named "No Tax Vendor". You can give any other name if you want
2. Create an Item in QuickBooks
TYPE=Sales Tax Item
TAX PERCENT = 0%
VENDOR=No Tax Vendor
Note: If you do NOT see the item type Sales Tax Item in your QuickBooks then you have not enabled sales tax in QuickBooks. Follow the steps below to activate sales tax in QuickBooks.
In QuickBooks, click Edit menu > Preferences > Sales Tax
Here you will see the question.
Do you charge Sales Tax. Set to Yes.
Close the preferences screen.
Now go to item list and add new item of type sales Tax item as described above
Now post orders to QuickBooks