I am new in Xamarin.Forms and I want use the bar code scaner by Zxing.
however I install the plugin form nuget:
1)ZXing.Net.Mobile for Forms
2) ZXing.Net.Mobile. -> install it since I read somewhere it would help my problem but its not.
as far as I understood I need to add this line: to the Android project in main Activity
However alotugh I install the packages I am still getting an error of:
The type or namespace name 'Andorid' does not exist in the namespace 'ZXing.Net.Mobile.Forms' (are you missing an assembly reference?) ScannerZXing.Android
what can I do? (perofrm clean and rebuild for the project didn't help)
also would like to add that it is added in the referecnes of the projects.
Thanks for the ansewrs.
In my case the reason was that I installed only ZXing.Net.Mobile.Forms. After installing ZXing.Net.Mobile it`s gone. (two libraries need to be installed)
UPDATE: After trying to run the project I discovered that you actually need both Nuget Packages
Previous: Just in case anyone had the same issue as me there are actually two ZXing.Net.Mobile packages both of which by Redth. They both have the exact same description as well unfortunately. I tried the first one which at the time of this writing had the most downloads... however it produced the error as described. By uninstalling and reinstalling the second I resolved the issue:
Related
I just bought template products in Unity expecting to learn some logic
i just encountered errors of CS0246 when importing. and it seems all coming from one package in Library
below is one of the error message.
Library/PackageCache/com.unity.collab-proxy#1.2.16/Editor/Collab/Presenters/CollabHistoryPresenter.cs(21,9): error CS0246: The type or namespace name 'BuildAccess' could not be found (are you missing a using directive or an assembly reference?)
i am a beginner and i don't know how to handle on this kind of error.
can anyone kindly help me point out where and why this error happen?
I just updated from 2019.x to 2020.3.x and ran into this problem. I tried clearing my package cache and ensuring the Collaborate service was disabled (Window -> General -> Services), but neither worked.
What fixed it for me was removing the "Version Control" package (a "built in" package, I believe. Check your filter in package manager!). I was never using Collaborate or Plastic SCM, just git, so I don't know why this would cause a problem from a simple upgrade. 🙄
Here are a few suggestions for tracking down the issue. Hard to tell what is missing.
close unity and delete Library and obj folders. Then open Unity again. It will re-sync those folders.
disable collaborate from services window in 2019- or window/collaborate in 2020+ and see if the issue gets resolved.
I checked the Package Manager and removed Collaborate. No idea how it got there.
I started using Xamarin Studio, and the version is 6.0.1 build 9.
I downloaded sample projects to check its behavior.
I downloaded the projects from the official website.
https://github.com/xamarin/urho-samples
When I start building the project, the error happens as follows.
Error CS0234: The type or namespace name iOS' does not exist in the
namespaceUrho'. Are you missing an assembly reference? (CS0234)
(Urho.Samples.iOS)
error image
I guess I need to fix the building setting, but I don't know how to deal with it.
I'd appreciate your advice.
You are probably missing one or more NuGet packages as indicated by the message.
You can restore the package automatically by going to you solution view, find the project that is missing references, right-click the packages node and click the Restore option.
Here you can also Update all packages or add them.
This is one of the first things you want to do when getting a external project of at first checkout. There is also the option of doing this automatically when building.
For this go the the Xamarin Studio menu option, the Preferences and find the NuGet section. Under General you can check an option to do this automatically when building a solution.
Also, you can let it check for updated packages. Then you will see the '(x.x.x available)' suffix like in the first screenshot.
I am following along with the getting started tutorial:
https://azure.microsoft.com/en-us/documentation/articles/app-service-mobile-dotnet-backend-xamarin-android-get-started-preview/
I can successfully work the steps up through "Publish your server project to Azure". However, when I download, open and build the Xamarin.Android app I have issues. Specifically, the output window says the build was successful, but the error window indicates that there are 14 errors, all of which are CS0012.
I understand that the "System.Runtime" assembly isn't being referenced, but no solutions I have been able to identify on MSDN or on StackExchange seem to correct the issue.
Any help would be appreciated!
I was able to solve this issue, plus a number of others (related to missing references) by adding the references using the "server" portion of the getting started demo. I also had to update all of the nugget packages as the references I added were in conflict with some of the existing references in the project.
I'm currently developing a Xamarin.Android application in VS2013.
I want to implement Azure Active Directory in my app following this guide. Then I add Microsoft.IdentityModel.Clients.ActiveDirectory nuget package as described.
Then I want to add an AuthenticationResult attribute, but then I got a missing assemble reference error. Even when I explicitely write (or drag and drop) Microsoft.IdentityModel.Clients.ActiveDirectory.AuthenticationResult.
I looked everywhere for solutions, but none fits my problem. (Upgrade/Downgrade target framework didn't solve the issue)
If anyone has an idea about this, I would be really thankful because I'm getting out of ideas.
Thank you.
Few things to check or try:
Does the Reference to Microsoft.IdentityModel.Clients.ActiveDirectory appear in the References list from your solution?
If it appears, what are the properties, like copy to output, absolute/relative path?
Is it added for all Project configurations (Debug/Release)?
So I found out what was the problem. I had to use a specific version of the package since it's a pre-released version. I had to install 3.0.110281957 exactly then it recognize the reference as I needed.
I'm using creating a .Net 4.0 application to post stuff to Twitter using the Tweetinvi API. I can't use packages, so I've downloaded the dll's and added them to my project:
Yet my includes are showing errors:
My error console shows:
Error 423 The type or namespace name 'Core' does not exist in the
namespace 'Tweetinvi' (are you missing an assembly
reference?) {...file...}.cs 10 17 ApiProviders
Can anyone tell me why this happens and how I could fix this?
Tweetinvi requires the Bcl.Async package. You need to add that too.
Check all the dependencies and make shure all are installed.
BUT as already said I highly recommend using NuGet for this. If you are not allowed to use the "public feed" you can download the packages and put them in a local folder and add this folder as a new feed in Visual Studio.
Have you tried downloading the project from the download page?
https://tweetinvi.codeplex.com/downloads/get/852208