I'm trying to build a WP8 app and I keep getting the following error:
Any ideas?
Error 12 The "GenerateWinPRTManifest" task failed unexpectedly.
System.Xml.XmlException: '.', hexadecimal value 0x00, is an invalid character. Line 1, position 1.
at System.Xml.XmlTextReaderImpl.Throw(Exception e)
at System.Xml.XmlTextReaderImpl.Throw(String res, String[] args)
at System.Xml.XmlTextReaderImpl.ThrowInvalidChar(Char[] data, Int32 length, Int32 invCharPos)
at System.Xml.XmlTextReaderImpl.ParseRootLevelWhitespace()
at System.Xml.XmlTextReaderImpl.ParseDocumentContent()
at System.Xml.XmlTextReaderImpl.Read()
at System.Xml.Linq.XDocument.Load(XmlReader reader, LoadOptions options)
at System.Xml.Linq.XDocument.Load(String uri, LoadOptions options)
at Microsoft.Silverlight.Build.Tasks.GenerateWinPRTManifest.IsManifestUptoDate()
at Microsoft.Silverlight.Build.Tasks.GenerateWinPRTManifest.SaveDocumentIfUpdated()
at Microsoft.Silverlight.Build.Tasks.GenerateWinPRTManifest.ExecuteImplementation()
at Microsoft.Silverlight.Build.Tasks.GenerateWinPRTManifest.Execute()
at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute()
at Microsoft.Build.BackEnd.TaskBuilder.<ExecuteInstantiatedTask>d__20.MoveNext()
Not sure what was wrong but deleting the contents of the Bin and obj folder and rebuilding resolved the issue.
Related
In my logs, I found a weird error regarding my ServiceStack service. I don't have further information than the following stacktrace and I didn't manage to reproduce the error yet. That's the stacktrace:
JsvTypeSerializer.EatMapKey (ServiceStack.Text.StringSegment value, System.Int32& i)
DeserializeDictionary`1[TSerializer].ParseStringDictionary (ServiceStack.Text.StringSegment value)
(wrapper delegate-invoke) :invoke_object_StringSegment (ServiceStack.Text.StringSegment)
JsvReader`1[T].ParseStringSegment (ServiceStack.Text.StringSegment value)
JsvReader`1[T].Parse (System.String value)
TypeSerializer.DeserializeFromString[T] (System.String value)
StringExtensions.FromJsv[T] (System.String jsv)
WebServiceException.ParseResponseDto ()
WebServiceException.get_ErrorMessage ()
WebServiceException.get_Message ()
I'm not sure where I should start, the service actually only has json enabled and not jsv, and the part where I handle the request is inside a try-catch block, so I'm not sure why the error is actually happening.
This Exception is due to not being able to parse a structured Error ResponseStatus thrown in a WebServiceException possibly due to returning an unknown Error Response. I've made it so this parsing heuristic doesn't throw an Exception when it fails in this commit.
This change is available from v5.0.3 that's now available on MyGet.
I want to extract text from a PDF containing Image for which I am using UIPath.
I have tried Abby, microsoft and google OCR engine but getting same error in all of them.
Below is the error stacktrace:-
ExtractMail has thrown an exception
Source: Abbyy OCR
Message: Error performing OCR: AbbyyErrorLoadEngine
Exception Type: Exception
System.Exception: Error performing OCR: AbbyyErrorLoadEngine
Server stack trace:
at UiPath.Vision.VisionClient.ScrapeUsingHostService(OCRInput input, OCROptions options, CancellationToken cancelToken)
at UiPath.Vision.VisionClient.ScrapeImage(OCRInput input, OCROptions options, CancellationToken cancelToken, Boolean useHostProcess)
at UiPath.Vision.VisionClient.Scrape(OCRInput input, OCROptions options, CancellationToken cancelToken, Boolean useHostProcess)
at UiPath.Vision.UiImage.ScrapeOCR(OCROptions options, CancellationToken cancellationToken)
at UiPath.Core.Activities.OCREngineActivity.<>c__DisplayClass36_0.<BeginExecute>b__0()
at System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr md, Object[] args, Object server, Object[]& outArgs)
at System.Runtime.Remoting.Messaging.StackBuilderSink.AsyncProcessMessage(IMessage msg, IMessageSink replySink)
Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.EndInvokeHelper(Message reqMsg, Boolean bProxyCase)
at System.Runtime.Remoting.Proxies.RemotingProxy.Invoke(Object NotUsed, MessageData& msgData)
at System.Func`1.EndInvoke(IAsyncResult result)
at UiPath.Core.Activities.OCREngineActivity.EndExecute(AsyncCodeActivityContext context, IAsyncResult result)
at System.Activities.AsyncCodeActivity`1.System.Activities.IAsyncCodeActivity.FinishExecution(AsyncCodeActivityContext context, IAsyncResult result)
at System.Activities.AsyncCodeActivity.CompleteAsyncCodeActivityData.CompleteAsyncCodeActivityWorkItem.Execute(ActivityExecutor executor, BookmarkManager bookmarkManager)
It might be that you have a problem executing UiPath.Vision.Host32.exe (in 18.2+ it's located in C:\Users\<username>\.nuget\packages\uipath.vision\<version number>\build\UiPath.Vision.Host32.exe). It could be blocked by AV software or group policies. Try checking with Process Explorer to see if you'll get any hints about what is going on.
I'm using C# and via a webapi I need to send a request to a server and process the response. The data that comes back from the server has the form like:
{"A_Field":a,"B_Field":"B_FieldValue","C_Field":5}
{"TYPE":"Values","Column1":["1234","456789","12345"],"Column2":["abc","defg","high"]}
{"TYPE":"Values","Column1":["45353","23422","6755"],"Column2":["sfs","fhfghg","vzczzc"]}
{"TYPE":"Values","Column1":["4564","5664","12345"],"Column2":["abfsdc","vxvx","cxvbvx"]}
{"TYPE":"Values","Column1":["5664","979","7978"],"Column2":["ryrt","qweq","nbmm"]}
....
{"A_Field":b,"COMPLETE:"YES"}
I need to process the parts that start with {"TYPE":"Values"....}
There are an exceptionally large amount of these messages that are returned from the server. So to be able to process each line/message as it is received would be ideal. The last line that has "COMPLETE:"YES"} signals the end of the message. I tried the below code:
try{
using (var handler = new HttpClientHandler())
{
handler.Credentials = new System.Net.NetworkCredential("user", "password");
using (var client = new HttpClient(handler))
{
client.BaseAddress = new Uri("http://<server>:port/api/rest/");
await client.GetAsync(blah_query)
.ContinueWith(taskwithresponse =>
HttpResponseMessage response = taskwithresponse.Result;
}
}
}
catch(Exception e)
{
Console.WriteLine("Error {0}",e.Message);
}
The output gives:
Error: System.AggregateException: One or more errors occurred. ---> System.OutOfMemoryException: Exception of type 'System.OutOfMemoryException' was thrown.
at System.IO.MemoryStream.set_Capacity(Int32 value)
at System.IO.MemoryStream.EnsureCapacity(Int32 value)
at System.IO.MemoryStream.Write(Byte[] buffer, Int32 offset, Int32 count)
at System.Net.Http.HttpContent.LimitMemoryStream.Write(Byte[] buffer, Int32 offset, Int32 count)
at System.Net.Http.StreamToStreamCopy.TryStartWriteSync(Int32 bytesRead)
at System.Net.Http.StreamToStreamCopy.BufferReadCallback(IAsyncResult ar)
--- End of inner exception stack trace ---
at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
at System.Threading.Tasks.Task 1.GetResultCore(Boolean waitCompletionNotification)
at System.Threading.Tasks.Task 1.get_Result() at WebCall.Program.
at System.Threading.Tasks.ContinuationTaskFromResultTask`1.InnerInvoke()
at System.Threading.Tasks.Task.Execute()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) atSystem.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.GetResult()
at WebCall.Program.<RunAsync>d__3.MoveNext() in
---> (Inner Exception #0) System.OutOfMemoryException: Exception of type 'System.OutOfMemoryException' was thrown.
...
at System.Net.Http.HttpContent.LimitMemoryStream.Write(Byte[] buffer, Int32 offset, Int32 count)
at System.Net.Http.StreamToStreamCopy.TryStartWriteSync(Int32 bytesRead)
at System.Net.Http.StreamToStreamCopy.BufferReadCallback(IAsyncResult ar)<---
This fails when the response is very large. I'm guessing that processing has to be done in the loop? But I believe what is happening here is that it's waiting for the entire message to return. Or is this the completely wrong way to go about it.
I'm not familiar with web programming. But can someone help advise on how I can process the returned data in an optimal way? Is it possible to do it a line/message at a time? A code sample/tutorial would be a great help. Most of what i've seen uses a small amount of data.
Does anyone know how I progress this?
I have an iOS app built with Xamarin iOS that crashes when loading the class that has DllImport attributes for PInvoke calls. The exception is:
Unhandled managed exception: An exception was thrown by the type initializer for Pazanga.Native.ZzPINVOKE (System.TypeInitializationException)
The app worked fine, but started crashing when the native library grew in size. After cropping some parts of the library it worked again, but after linking a new library it started crashing again. The crash happens before any calls are actually made to the native library.
Here is the device log after the crash: http://pastebin.com/vW3CMXHq
The inner exceptions are:
Aug 23 10:33:40 Outboxs-iPod pazanga[4216] <Warning>: System.TypeInitializationException: An exception was thrown by the type initializer for Pazanga.Native.ZzPINVOKE ---> System.TypeInitializationException: An exception was thrown by the type initializer for SWIGStringHelper ---> System.ExecutionEngineException: Attempting to JIT compile method '(wrapper native-to-managed) Pazanga.Native.ZzPINVOKE/SWIGStringHelper:CreateString (intptr)' while running with --aot-only. See http://docs.xamarin.com/ios/about/limitations for more information.
at (wrapper managed-to-native) object:__icall_wrapper_mono_delegate_to_ftnptr (object)
at (wrapper managed-to-native) Pazanga.Native.ZzPINVOKE/SWIGStringHelper:SWIGRegisterStringCallback_Zz (Pazanga.Native.ZzPINVOKE/SWIGStringHelper/SWIGStringDelegate)
at Pazanga.Native.ZzPINVOKE+SWIGStringHelper..cctor () [0x00017] in /Users/max/Code/pazanga/mobile/ios/bindings/ZzPINVOKE.cs:229
--- End of inner exception stack trace ---
at Pazanga.Native.ZzPINVOKE..cctor () [0x0000a] in /Users/max/Code/pazanga/mobile/ios/bindings/ZzPINVOKE.cs:233
--- End of inner exception stack trace ---
at Pazanga.Native.Zz.locate (System.Byte[] image, image_format format, Int32 width, Int32 height, Int32 x, Int32 y) [0x00009] in /Users/max/Code/pazanga/mobile/ios/bindings/Zz.cs:16
at Pazanga.CaptureDecode.ProcessFrame (System.Byte[] data, Int32 dataWidth, Int32 dataHeight, Boolean isPicture) [0x000cf] in /Users/max/Code/pazanga/mobile/common/CaptureDecode.cs:95
at Pazanga.iOS.CaptureViewController.HandleNewFrame (System.Byte[] data, Int32 width, Int32 height) [0x0003b] in /Users/max/Code/pazanga/mobile/ios/App/CaptureViewController.cs:128
at Pazanga.iOS.CaptureManager.OnNewFrame (System.Byte[] array, Int32 width, Int32 height) [0x00015] in /Users/max/Code/pazanga/mobile/ios/App/CaptureManager.cs:126
at Pazanga.iOS.CaptureManager+OutputDelegate.DidOutputSampleBuffer (MonoTouch.AVFoundation.AVCaptureOutput captureOutput, MonoTouch.CoreMedia.CMSampleBuffer sampleBuffer, MonoTouch.AVFoundation.AVCaptureConnection connection) [0x000c6] in /Users/max/Code/pazanga/mobile/ios/App/CaptureManager.cs:110
Aug 23 10:33:40 Outboxs-iPod pazanga[4216] <Warning>: System.TypeInitializationException: An exception was thrown by the type initializer for SWIGStringHelper ---> System.ExecutionEngineException: Attempting to JIT compile method '(wrapper native-to-managed) Pazanga.Native.ZzPINVOKE/SWIGStringHelper:CreateString (intptr)' while running with --aot-only. See http://docs.xamarin.com/ios/about/limitations for more information.
at (wrapper managed-to-native) object:__icall_wrapper_mono_delegate_to_ftnptr (object)
at (wrapper managed-to-native) Pazanga.Native.ZzPINVOKE/SWIGStringHelper:SWIGRegisterStringCallback_Zz (Pazanga.Native.ZzPINVOKE/SWIGStringHelper/SWIGStringDelegate)
at Pazanga.Native.ZzPINVOKE+SWIGStringHelper..cctor () [0x00017] in /Users/max/Code/pazanga/mobile/ios/bindings/ZzPINVOKE.cs:229
--- End of inner exception stack trace ---
at Pazanga.Native.ZzPINVOKE..cctor () [0x0000a] in /Users/max/Code/pazanga/mobile/ios/bindings/ZzPINVOKE.cs:233
Aug 23 10:33:40 Outboxs-iPod pazanga[4216] <Warning>: System.ExecutionEngineException: Attempting to JIT compile method '(wrapper native-to-managed) Pazanga.Native.ZzPINVOKE/SWIGStringHelper:CreateString (intptr)' while running with --aot-only. See http://docs.xamarin.com/ios/about/limitations for more information.
at (wrapper managed-to-native) object:__icall_wrapper_mono_delegate_to_ftnptr (object)
at (wrapper managed-to-native) Pazanga.Native.ZzPINVOKE/SWIGStringHelper:SWIGRegisterStringCallback_Zz (Pazanga.Native.ZzPINVOKE/SWIGStringHelper/SWIGStringDelegate)
at Pazanga.Native.ZzPINVOKE+SWIGStringHelper..cctor () [0x00017] in /Users/max/Code/pazanga/mobile/ios/bindings/ZzPINVOKE.cs:229
And here is the SWIGStringHelper class (generated by SWIG) that appears in the exception:
protected class SWIGStringHelper {
public delegate string SWIGStringDelegate(string message);
static SWIGStringDelegate stringDelegate = new SWIGStringDelegate(CreateString);
[DllImport("__Internal", EntryPoint="SWIGRegisterStringCallback_Zz")]
public static extern void SWIGRegisterStringCallback_Zz(SWIGStringDelegate stringDelegate);
[MonoTouch.MonoPInvokeCallback(typeof(SWIGStringDelegate))]
static string CreateString(string cString) {
return cString;
}
static SWIGStringHelper() {
SWIGRegisterStringCallback_Zz(stringDelegate);
}
}
Any ideas on how to solve this?
To close the loop... It turned out to be a duplicate of bug 14194 (reverse callback using a string).
A TypeInitializationException was thrown because the exception occurred inside a static constructor.
I'm building this WP7 app that uses a video game API to get the statistics of someone's character (just to help learn silverlight). It grabs the players details from the web service and stores them on isolated storage on the phone to relieve strain from the server.
Originally I had a class which had both the cache writing and reading function, but now i've had to seperate it out into two seperate classes. The cache writing class doesn't matter at the moment, just the cache reading class.
On line 7, it throws an exception saying "Operation not permitted on IsolatedStorageFileStream.", but only during the second time it instantiates the class. I've done some checking with debug and it says the file definately exists, but it stops after the second using clause.
Can anyone help me with this please? I feel like I'm missing something really obvious.
public class CacheReader
{
public PlayerData GetPlayerData(string gamertagIn)
{
using (IsolatedStorageFile CachedReachData = IsolatedStorageFile.GetUserStoreForApplication())
{
using (IsolatedStorageFileStream stream = CachedReachData.OpenFile(gamertagIn + ".xml", FileMode.Open))
{
Debug.WriteLine("Data Retrieved from cache");
XmlSerializer serializer = new XmlSerializer(typeof(PlayerData));
PlayerData loadedPlayer = (PlayerData)serializer.Deserialize(stream);
return loadedPlayer;
}
}
}
}
[EDIT 1]
This is the stack trace i get:
at System.IO.IsolatedStorage.IsolatedStorageFileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, IsolatedStorageFile isf)
at System.IO.IsolatedStorage.IsolatedStorageFileStream..ctor(String path, FileMode mode, FileAccess access, IsolatedStorageFile isf)
at System.IO.IsolatedStorage.IsolatedStorageFile.OpenFile(String path, FileMode mode, FileAccess access)
at ReachPhoneApp.CacheReader.GetPlayerFromCache(String gamertagIn)
at ReachPhoneApp.Page2.GetPlayerData()
at ReachPhoneApp.Page2.cacheWriter_UpdateComplete()
at ReachPhoneApp.CacheWriter.WritePlayerDataToCache(String fileNameIn, Object objectIn)
at ReachPhoneApp.CacheWriter.client_GetGameHistoryCompleted(Object sender, GetGameHistoryCompletedEventArgs e)
at ReachPhoneApp.ReachAPI.ReachApiSoapClient.OnGetGameHistoryCompleted(Object state)
at System.Reflection.RuntimeMethodInfo.InternalInvoke(RuntimeMethodInfo rtmi, Object obj, BindingFlags invokeAttr, Binder binder, Object parameters, CultureInfo culture, Boolean isBinderDefault, Assembly caller, Boolean verifyAccess, StackCrawlMark& stackMark)
at System.Reflection.RuntimeMethodInfo.InternalInvoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, StackCrawlMark& stackMark)
at System.Reflection.MethodBase.Invoke(Object obj, Object[] parameters)
at System.Delegate.DynamicInvokeOne(Object[] args)
at System.MulticastDelegate.DynamicInvokeImpl(Object[] args)
at System.Delegate.DynamicInvoke(Object[] args)
at System.Windows.Threading.DispatcherOperation.Invoke()
at System.Windows.Threading.Dispatcher.Dispatch(DispatcherPriority priority)
at System.Windows.Threading.Dispatcher.OnInvoke(Object context)
at System.Windows.Hosting.CallbackCookie.Invoke(Object[] args)
at System.Windows.Hosting.DelegateWrapper.InternalInvoke(Object[] args)
at System.Windows.RuntimeHost.ManagedHost.InvokeDelegate(IntPtr pHandle, Int32 nParamCount, ScriptParam[] pParams, ScriptParam& pResult)
Check that you don't somehow have two threads accessing IsolatedStorage at the same time (ie. in VS Debug.View.Threads and verify that at the time of the exception you don't have multiple paths through the same IsoStore code).
This happened in my WP7 code once every few days and was tricky to find, as it seemed to occur only when not connectected to the debugger.
You need to call:
stream.Close();
before
return loadedPlayer;
I think the problem is that you didn't specify that multiple threads could read/write at the same time by specifying a System.IO.FileShare.ReadWrite or whatever access you need as the last parameter of OpenFile.
See the discussion here on the Microsoft Forums.
I ran into this issue as well, but for completely different reasons as mentioned above. I hadn't created the directory that I was saving into.
private void SaveStringDataToStorage(string sDirectory, string sFileName, string sFileContent)
{
string sPath;
//
using (IsolatedStorageFile oFile = solatedStorageFile.GetUserStoreForApplication())
{
if (!oFile.DirectoryExists(sDirectory))
oFile.CreateDirectory(sDirectory);
//
sPath = Path.Combine(sDirectory, sFileName);
//
using (var oWriter = new StreamWriter(new IsolatedStorageFileStream(sPath, FileMode.Create, oFile)))
oWriter.Write(sFileContent);
}
}
Using this code will work if you had the same problem as me, plus it's pretty simple so you can adapt it to whatever you need. I was using this code before I had issues, but I'd forgotten the ! so the directory was never created haha. Just typical. Hope this helps :)
EDIT
Looking closer at the original question, it may be that the file didn't exist. I think it's always best to do IsolatedStorageFile.DirectoryExists() and IsolatedStorageFile.FileExists() before trying to access either location, whether you are reading or writing.
By default when you use IsolatedStorageFile.OpenFile("filename", FileMode.Open) your file gets locked by this thread and no other thread would be able to access this file until 1st thread close it. But if you like to share your file in multiple threads for read purpose only then I would recommend you to use following override
IsolatedStorageFile.OpenFile("filename", FileMode.Open, FileAccess.Read, FileShare.Read)
see details here