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a manual started RTC-Session is importing csv-files from different places with different XMLPorts around the clock. Almost daily this is stopped by the stated error.
How can I debug this or find the reason?
Start your debug session from development env and execute your scenario. It will break at the point of error, you do not have to insert a breakpoint It will automatically break at the time of the error.
Also, check this post: http://www.jigsaw.com.au/blog/2011/august/02/nav2009-%e2%80%93-an-io-exception-occurred-during-the-operation-(1).aspx
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