This is a more specific continuation of my previous Post: Custom Vision on HoloLens
I'm still using the Unity Project from this blogpost: https://mtaulty.com/2018/03/29/third-experiment-with-image-classification-on-windows-ml-from-uwp-on-hololens-in-unity/
I had issues that my own exported models don't work with the the code at some point. Now it is possible to export onnx models of version 1.2, but the the old code seems to not be compatible with the new version.
in the line var evalOutput = await this.learningModel.EvaluateAsync(this.inputData); in the MainScript it throws The binding is incomplete or does not match the input/output description. (Exception from HRESULT: 0x88900002)
Does someone know what I need to change so it works with the new version on HoloLens? Thanks in advance!
You can find a similar question here: Windows ML's OS requirement
In summary, you are right about needing to update the PC and the Hololens, but the build number you need is 17763 to be on the production version of RS5.
You could also be hitting this issue: Cannot load model using WinML
where the binding isn't quite setup properly.
If you're still having issues, please post the SDK and OS version you're on, as well as the ONNX model version.
Related
I am trying to build asterisk , I am using meta-telephony layer provided from oe-layers.
I have faced few issued while building the application "asterisk" for raspberry pi 3 b.
Initially I have build core-image-minimal for Rpi and it worked successfully.
Tried to build few applications like lighttpd, SQLite3 and they worked successfully.
Now i am trying to build an application called "asterisk" whose recipe is in meta-telephony -> recipe-asterisk-asterisk-asterisk_13.5.0.bb , but I have encountered few errors.
Need guidance for below Error i have faced
WARNING: Layer telephony should set LAYERSERIES_COMPAT_telephony in its conf/layer.conf file to list the core layer names it is compatible with.
WARNING: Layer telephony should set LAYERSERIES_COMPAT_telephony in its conf/layer.conf file to list the core layer names it is compatible with.
Loading cache: 100% |###########################################################################################################| Time: 0:00:00
Loaded 1370 entries from dependency cache.
ERROR: ParseError at /home/bhavya/dialtronics/yocto/poky-dunfell/meta-telephony/classes/waf-samba.bbclass:4: Could not inherit file classes/pythonnative.bbclass
Please kindly help me to solve the issue.
Thanks in advance
bhavya
As far as I see, the last commit on meta-telephony was from 2017. This is long before the Yocto release Dunfell you would like to use.
Mixing meta-layers in different Yocto releases isn't something you do to have fun.
Or you try to find out what release they where using, and go back to these old days. Or you pick up the work and try to maintain a more up to date meta layer.
And to start it, I thing the pythonnative.bbclass is now python3native.bbclass. Note in Dunfell the Python2 support stopped (as in almost all distro?).
BTW: the version in the meta layer is also quite old (13.5.0). Latest version seems to be 17.5.1.
We have a Xamarin.Forms project that needed to use the sqlite local db to store date. EF Core's sqlite library was used to set this up and by different developers from different PCs (vs 2019). Initially, it was used with the Database.EnsureCreated() function and later with ef core's migrations. All went smooth for more than a month.
Last week all of a sudden the android app wouldn't start on any one's PC due to some error with sqlite. It showed the following error:
Fatal signal 11 (SIGSEGV), code 1 (SEGV_MAPERR)
I spent a while trying all kinds of fixes and rollbacks thinking it was an issue with the code. This included the following:
Deleted obj and bin folders, cleaned and rebuilt for all below steps.
Downgraded the version of ef to 2.2.3 (the version we started with)
Rolled back to git commits up to a week back
Upgraded the versions of dependencies of ef core
Removed the past few migrations
Downgraded xamarin forms to 3.6.x
After trying the above and several other fixes, finally upgrading the versions of java and android SDK worked last Friday (on all PCs). Once this fix worked everything went smooth that day. On Tuesday once again the issue was back (no library updates or code changes). A deeper look at EF Cores logging shows that it crashes the moment it attempts to connect to a db.
The issue can be replicated on the android devices but not the emulators. I am not sure if there is some new permission in android we need to request for.
I finally created a new xamarin forms project with sqlite setup. I used the pcl library and ef core. I still found the same error.
Here is the git hub that replicates the issue https://github.com/neville-nazerane/xamarin-site
Update
Just something i noticed. eariler my database file was named "main.db". Now no matter what i change this file name to or no matter what variables i change. it always shows database name as "main" in logs. Not sure if changing the db name would fix the issue. However, never found a way to change this db name. I tried different connection strings, it just said "database" and "db" were unknown keys
Update
Steps to replicate:
using (var db = new AppDbContext())
{
db.Add(new Person {
Age = 55,
Name = "Neville"
});
db.SaveChanges();
Person[] alldata = db.People.ToArray();
}
The definitions of Person and AppDbContext are quite obvious. So, with the spirit of not making the question too long, I am not posting it here. However, if required I can post them too.
This is a bug with the Xamarin.Forms and Mono.
It was detected since a couple of months ago, it was fixed but then there was some regression (with VS 2019 v16.1).
Even with the latest release (v16.1.2) the bug still happens, so we need to wait for a fix.
Sources:
https://github.com/mono/mono/issues/14170
https://github.com/xamarin/xamarin-android/issues/3112
https://github.com/xamarin/xamarin-android/issues/2920
Due to slight differences of the particular file systems on the native side, I would suggest creating an interface to handle the actual database file handling on the native application level.
So here is how I implemented SQLite using the nuget package SQLite.Net-PCL:
In the shared project, create a new interface, for instance FileHandler.cs
public interface IFileHandler
{
SQLite.SQLiteConnection GetDbConnection();
}
You may want to extend that with more methods to save or retrieve various files, but for now we will just have the GetDbConnection Method to retrieve a working SQLite Connection.
Now in your Android implementation, we add the native implementation to that interface:
Create a new class called FileHandler.cs in your android project:
[assembly: Dependency(typeof(FileHandler))]
namespace YourProjectName.Droid
{
public class FileHandler : IFileHandler
{
public SQLite.SQLiteConnection GetDbConnection()
{
string sqliteFilename = "YourDbName.db3";
string path = Path.Combine(GetPersonalPath(), sqliteFilename);
SQLiteConnectionString connStr = new SQLiteConnectionString(path, true);
SQLiteConnectionWithLock connection = new SQLiteConnectionWithLock(connStr, SQLiteOpenFlags.Create | SQLiteOpenFlags.ReadWrite | SQLiteOpenFlags.NoMutex);
return connection;
}
private string GetPersonalPath()
{
return Environment.GetFolderPath(Environment.SpecialFolder.Personal);
}
}
}
Now back again in your shared code you can access that connection with the following code:
using (SQLiteConnection connection = DependencyService.Get<IFileHandler>().GetDbConnection())
{
// Do whatever you want to do with the database connection
}
Alright mate, I don't understand what issue you are facing. It might be an issue with your machine, I'd suggest using another computer/laptop.
I took the exact code that you shared on the Github. I was able to build it on my Mac computer in VS 2019 and installed the application in debug mode on my phone. I was able to add a date successfully, as you can see in the picture, and I placed an Exception Catchpoint and faced no exceptions.
I then proceeded to add another entry with the same details and it errored out with the message that you can see here
I would also suggest using Xamarin Profiler or any other Android logger to see the Stack Trace that you aren't able to see in your application output. It will give you details of the error, that you can share here for us to understand better.
Using Atalasoft's free SDK,
http://www.atalasoft.com/free-dotnet-image-sdk
I added reference to the DotImage and DotImage.Lib dlls' to Visual Studio 2010.
My code:-
Atalasoft.Imaging.AtalaImage image = new Atalasoft.Imaging.AtalaImage(fileName);
Atalasoft.Imaging.Codec.TiffEncoder encoder = new Atalasoft.Imaging.Codec.TiffEncoder();
encoder.Compression = Atalasoft.Imaging.Codec.TiffCompression.Group4FaxEncoding;
image.Save(fileName, encoder, null); // destroys the original.
However when I run the code I get an error on the very first line:-
Unable to retrieve security descriptor for this frame.
Can anyone help me out with this?
Update:-
I added a further line of code:-
System.Security.Permissions.FileIOPermission f2 = new System.Security.Permissions.FileIOPermission(System.Security.Permissions.FileIOPermissionAccess.AllAccess, fileName);
Still the same error.
Philo,
Hi, I'm the support engineer you called in to yesterday. I apologize - after you called in, I received a note from our chief software architect asking us to help you out.
If you are still experiencing your issue, please do call back in and/or create a support case on our portal at https://www.atalasoft.com/support/my-portal/cases
A couple of tings that come to mind from your case: make sure you're targeting either x86 or x64 in your project's platform target (DotImage "has bitness") and make sure you're using the appropriate x86 or x64 Atalasoft references. (I strongly suggest our x86 while getting started as x64 has some additional hoops to jump through to get the licensing working.
Atalasoft does ship some AnyCPU dlls but they're for an extremely limited subset of use cases and if you have referenced those and/or are attempting to target your project to AnyCPU, this will cause all sorts of odd behavior.
Also, if you're targeting our .NET framework 4.0, make sure you're targeting the full framework and not "Client Profile" as DotImage has dependencies on components not present in the Client Profile version.
~DigitalSorceress
Did you have the the file with .lic extension in project section on the right side? Make sure about that.
I have a classic ASP application written many years ago that I'm trying to fix.
The following lines recently stopped working after w7 sp1 was applied.
set address = Server.CreateObject("ADOR.Recordset")
count = lo_connection.GetRecordset(sql,address,false, error)
Set RDF2 = Server.CreateObject("RDSServer.DataFactory")
Set teststring = RDF2.ConvertToString(address)
It fails on the last line there saying "Microsoft VBScript runtime error: Class doesn't support Automation"
A bit of searching found several articles like this one
http://blogs.technet.com/b/asiasupp/archive/2011/03/14/changes-in-mdac-adodb-com-components-in-windows-7-service-pack-1.aspx
that described the problem exactly. Where I am failing is that none of the suggested fixes seems to fix the problem. Any suggestions?
The solutions described in the link are not relevant here, since ASP is not early-bound - it uses OLE Automation. It might be worth re-registering the component which creates RDSServer.DataFactory objects (which is C:\Program Files\Common Files\system\msadc\msadcf.dll on my machines).
I looked up this object, and I found this Microsoft web page:
http://msdn.microsoft.com/en-us/library/windows/desktop/ms681447(v=vs.85).aspx
"This feature will be removed in a future version of Windows. Avoid using this feature in new development work, and plan to modify applications that currently use this feature. Applications that use RDS should migrate to WCF Data Service."
Doesn't sound too good.
I'm trying the sample demo of selenium flex API. After following the instructions on the main page for compiling the project with sfpi.swc and taking the generated selben.swf in bin directory and trying to run some test(assertFlexText) using Selenium IDE, I get the following error:
[error] Function getFlexText not found on the External Interface for
the flash object selben
I have tried several other flex tests and got error messages similar to the one mentioned above.
For some reason I believe that the generated selben.swf through the automatic build of project in flex builder is not the desired one, though it didn't indicate any build problem after including sfpi.swc.
Any idea?
I use SeleniumFlex Api and SeleniumIde for my projecy with excellent result BUT using my own version of each of one. Your error maybe is for not include the lib of SeleniumFlexApi in the compile time( -include-libraries "libs\SeleniumFlexAPI.swc" ).
After that u can enable capture and replay with SeleniumIde change the main source (read this post) and use the user-extensions.js (in the SeleniumFlexApi project) with the SeleniumIde user option. Its really easy.
With these change u can capture and replay in firefox (v 3.06 or minor) and after that, if u use java, u can use Flex-UI-Selenium, Flash-Selenium for ur integration test with SeleniumRC.
I hope this information be usefull. I u have any question let me know.