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How to connect a GSM shield with an Arduino uno board? Answered

I connected the GSM shield and typed down a code of receiving an SMS, and it keeps showing an error about the serial port type..
I am not a professional person, I am working on my graduation project and can't go further due to this error..any one can help, please?


You really need to show us your code.

Programs copied from the Internet rarely work without some effort.