Using HTTP Request Activity While Downloading Package File Above Certain Size, System.Exception Obtained

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How to resolve the System.Exception obtained while downloading package file above certain size, using HTTP Request activity ?

Error Message:

" Reading-JArray-from-JsonReader-Path-line-0-position-0 "


Root Cause:

The "maxReceivedMessageSize" value of WCF that is not able to accommodate the response.


Resolution:

For versions less than 2020.4:

Follow the below steps to solve the System.Exception:

  1. Go to "C:\Program Files (x86)\UiPath\Studio" location
  2. Search for "UiPath.Service.Host.exe.config" file. Take a back up of the file
  3. Open the file and search for "maxReceivedMessageSize". Change the value to "2147483647".

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  1. Restart the UiPath Robot service and then run the workflow again.


For versions equal to or greater than 2020.4:

Increase the value of the maxMessageSizeInMegabytes parameter in the uipath.config file to a greater value such as 50 MB.