Visual Studio model Builder : Unable to select predict column label

System Information :
- Model Builder
- Visual Studio Version

https://dotnet.microsoft.com/en-us/learn/ml-dotnet/get-started-tutorial/data
problem: after browsing the yelp_labelled.txt file my dat gets processed and automatically added into columns. However, when i want to select a prediction column the drop-down list does not show any options

Steps to reproduce the behavior:
1. Go to data and upload yelp_labelled.txt
2. Click on 'column to predict (label)'
4. See error

I expected to see col1 in the options and choose it as my prediction column