Skip to main content

C# error at compile time challenge

By
Problem:
I have a challenge for you. You will find at the end of thispost a link to a zip that contains a .NET 4.0 projects. The challenge is tomake this project to compile and give me the cause of the problem. I will letyou until Friday morning.
Good luck.
https://skydrive.live.com/redir?resid=BB7D9F52E4FDB024!259&authkey=!APfTPi6HWX0VJQg


Solution:
In the ‘class’ word from the Foo class we had an odd character for Unicode world. The character named is ‘Zero with space’. Is like a space between words but without a visible space (width). Because Visual Studio can process also Unicode files, we have no limitation to add Unicode characters that are not visible using a normal editor. If we open the file with Total Commander viewer for example we will be able to see the character (in hex view for example).
Nice job :-)

Labels:

Comments

  1. TimoteiAugust 29, 2012 at 7:06 PM

    Hehe, simple one.

    When in doubt, retype the text. The problem is with the keyword "class". For example, if you put the cursor at the end of "class", and press CTRL+Left (that is, jump over one word), it will jump INSIDE the class, after the 'l' char.

    Looking at the source with a HEX Viewer we see:
    cl​ass . That is the ANSI representation. There is some UTF-8 garbage in there :)

    ReplyDelete
    Replies
    1. Radu VunvuleaAugust 29, 2012 at 7:14 PM

      You are almost there. You need to tell me what is that character? What represents?

      Delete
    2. TimoteiAugust 29, 2012 at 11:50 PM

      U+200B

      Unicode line break:
      http://www.fileformat.info/info/unicode/char/200b/index.htm

      Probably from some weird editor/another operating system

      Delete
    3. AnonymousAugust 30, 2012 at 12:08 AM

      Nice - the file is UTF-16 encoded (big endian), that is ok.. Word has the habit to insert zero-width-spaces sometimes.. :)

      Delete
  2. IonutAugust 31, 2012 at 3:23 AM

    I think that the file is encoded in ANSI and the "a" character in "class" is "â" which isn't a latin character. The ANSI encoded file permits to use characters from other alphabets not only latins character.

    ReplyDelete
  3. Radu VunvuleaAugust 31, 2012 at 8:26 AM

    I added the solution to the post. Enjoy.

    ReplyDelete

Post a Comment

Popular posts from this blog

How to audit an Azure Cosmos DB

By
In this post, we will talk about how we can audit an Azure Cosmos DB database. Before jumping into the problem let us define the business requirement: As an Administrator I want to be able to audit all changes that were done to specific collection inside my Azure Cosmos DB. The requirement is simple, but can be a little tricky to implement fully. First of all when you are using Azure Cosmos DB or any other storage solution there are 99% odds that you’ll have more than one system that writes data to it. This means that you have or not have control on the systems that are doing any create/update/delete operations. Solution 1: Diagnostic Logs Cosmos DB allows us activate diagnostics logs and stream the output a storage account for achieving to other systems like Event Hub or Log Analytics. This would allow us to have information related to who, when, what, response code and how the access operation to our Cosmos DB was done. Beside this there is a field that specifies what was th...
Post a Comment
Read more

Can User Technical Profile Influence AI Architecture Decisions?

By
In the last few days, I ran a small experiment on Devin/Windsurf/Cascade, BMAD, and LLM-based architecture decisions. The initial concern was simple: if an AI coding assistant knows something about the user, for example, that the user is a Java developer or a .NET developer, can this information influence the architecture and technology stack that the AI will propose? This question is important because many companies are starting to use AI tools not only for coding but also for product discovery, architecture, documentation, and technical decision-making. If the AI is influenced by the developer's personal profile, the result may not be fully neutral. It may look like a business or architecture decision, but in reality, it may be partially shaped by the context of the person using the tool. The test was done using BMAD with Devin/Windsurf/Cascade. The scenario was a unified field service operations platform. The task was to let BMAD refine the product, define the architecture and s...
Post a Comment
Read more

ADO.NET provider with invariant name 'System.Data.SqlClient' could not be loaded

By
Today blog post will be started with the following error when running DB tests on the CI machine: threw exception: System.InvalidOperationException: The Entity Framework provider type 'System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer' registered in the application config file for the ADO.NET provider with invariant name 'System.Data.SqlClient' could not be loaded. Make sure that the assembly-qualified name is used and that the assembly is available to the running application. See http://go.microsoft.com/fwlink/?LinkId=260882 for more information. at System.Data.Entity.Infrastructure.DependencyResolution.ProviderServicesFactory.GetInstance(String providerTypeName, String providerInvariantName) This error happened only on the Continuous Integration machine. On the devs machines, everything has fine. The classic problem – on my machine it’s working. The CI has the following configuration: TeamCity .NET 4.51 EF 6.0.2 VS2013 It see...
8 comments
Read more