error CS0103: The name 'File' does not exist in the current context #2503

System Information (please complete the following information):

• Model Builder or CLI Version: 16.14.3
• Visual Studio Version (if applicable):

Describe the bug

• On which page of the tutorial did you run into an issue (URL):https://dotnet.microsoft.com/en-us/learn/ml-dotnet/get-started-tutorial/consume

• Clear description of the problem:
  While running SentimentModel.ConsoleApp in the terminal using 'dotnet run' command. It gives the following error.

~/myMLApp/SentimentModel/SentimentModel.training.cs(62,29): error CS0103: The name 'File' does not exist in the current ~/myMLApp/SentimentModel/SentimentModel.csproj]

The build failed. Fix the build errors and run again.

To Reproduce
Steps to reproduce the behavior:

1. Following steps in URL https://dotnet.microsoft.com/en-us/learn/ml-dotnet/get-started-tutorial/consume
2. In step 3 run the console application using dotnet run
3. See the error: ~/myMLApp/SentimentModel/SentimentModel.training.cs(62,29): error CS0103: The name 'File' does not exist in the current ~/myMLApp/SentimentModel/SentimentModel.csproj]

Expected behavior
The console app should run without error

Screenshots
If applicable, add screenshots to help explain your problem.

Additional context
Possible solution: Add 'using System.IO;' in SentimentModel/SentimentModel.training.cs file