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'Update Error' message on lauch

Posted: October 17th, 2016, 8:36 am
by FreddyFrog
I am a computing teacher who has installed Atmosphir on the school computers.
I have installed : gtk-sharp-2.12.38.msi and LauncherSetup.msi
The update has been downloaded to 250 Mb.
When I launch Atmosphir from the desktop shortcut I have a 'Update Error' message:
Newtonsoft.Json.JsonReaderExceptionAn error ocurred, please report this at http://onemoreblock.com/:
Newtonsoft.Json.JsonReaderException: Unexpected character encountered while parsing value: <. Path '', line 0, position 0.
at Newtonsoft.Json.JsonTextReader.ParseValue()
at Newtonsoft.Json.JsonTextReader.Read()
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.ReadForType(JsonReader reader, JsonContract contract, Boolean hasConverter)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)
at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)
at Newtonsoft.Json.JsonConvert.DeserializeObject(String value, Type type, JsonSerializerSettings settings)
at Newtonsoft.Json.JsonConvert.DeserializeObject[T](String value, JsonSerializerSettings settings)
at Newtonsoft.Json.JsonConvert.DeserializeObject[T](String value)
at UpdateLib.UpdaterClient.<Post>d__10`2.MoveNext() in C:\Users\Pedro\Documents\AtmoLauncher\UpdateLib\UpdaterClient.cs:line 89
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
at UpdateLib.UpdaterClient.<Post>d__11`1.MoveNext() in C:\Users\Pedro\Documents\AtmoLauncher\UpdateLib\UpdaterClient.cs:line 94
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
at UpdateLib.UpdaterClient.<FindLatestVersion>d__5.MoveNext() in C:\Users\Pedro\Documents\AtmoLauncher\UpdateLib\UpdaterClient.cs:line 24
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
at Interface.Launcher.<UpdateProject>d__11.MoveNext()

I have to unplug the Ethernet cable before launching the app and then plug the cable back before clicking play button.
I would like to avoid the procedure.
Thanks for your help.