question

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PCIC Team asked PCIC Team commented

System.ValueTuple error when sending/receiving fax

My application throws "Could not load file or assembly 'System.ValueTuple, Version=4.0.2.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51' or one of its dependencies" whenever I try to send or retrieve a fax message. I am stumped and need help ASAP.


The interesting part is, the application runs fine on localhost. It fails when it is deployed on a server.

rest api
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1 Answer

Phong Vu avatar image
Phong Vu answered PCIC Team commented

It seems to be a conflict in .Net Framework in your app. You may find a solution from here.

https://stackoverflow.com/questions/42867434/could-not-load-file-or-assembly-system-valuetuple/50636962

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I updated the version to 4.7.1 and new I am able use my App.

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Developer sandbox tools

Using the RingCentral Phone for Desktop, you can dial or receive test calls, send and receive test SMS or Fax messages in your sandbox environment.

Download RingCentral Phone for Desktop:

Tip: switch to the "sandbox mode" before logging in the app:

  • On MacOS: press "fn + command + f2" keys
  • On Windows: press "Ctrl + F2" keys