Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Podcast Making Agile work for data science. Stack Gives Back Featured on Meta. See Develop code without projects or solutions. If the code you want to run is in GitHub or in an Azure DevOps repo, you can use Visual Studio to open the project directly from the repo.
See Open a project from a repo. When you use the Start button, it runs under the debugger. Visual Studio attempts to build the code in your project and run it. If that succeeds, great! But if not, continue reading for some ideas on how to get it to build successfully.
Your code might have errors, but if the code is correct, but just depends on some other assemblies or NuGet packages, or was written to target a different version of. NET, you might be able to easily fix it. To build properly, the code must be correct and have the right references set up to libraries or other dependencies.
You can look at the red squiggly lines and at the Error List to see if the program has any errors, even before you compile and run it. If you're seeing errors related to unresolved names, you probably need to add a reference or a using directive, or both. If the code references any assemblies or NuGet packages, you need to add those references in the project. Visual Studio tries to help you identify missing references. When a name is unresolved, a light bulb icon appears in the editor.
If you click the light bulb, you can see some suggestions on how to fix the issue. Fixes might be to:. For example, in the following screen, you can choose to add using System; to the start of the code file to resolve the unresolved name Console :.
NET references can be in the form of assemblies or NuGet packages. Usually, if you find source code, the publisher or author will explain what assemblies are required and what packages the code depends on. To add a reference to a project manually, right-click on the References node in the Solution Explorer , choose Add Reference , and locate the required assembly.
You can find assemblies and add references by following the instructions in Add or remove references by using the reference manager.
If Visual Studio detects a missing NuGet package, a light bulb appears and gives you the option to install it:. Mail us on [email protected] , to get more information about given services. Please mail your requirement at [email protected] Duration: 1 week to 2 week. Command Line Arguments. Operator in C. Reinforcement Learning.
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Operating System. Computer Network. To build properly, the code must be correct and have the right references set up to libraries or other dependencies. You can look at the red squiggly lines and at the Error List to see if the program has any errors, even before you compile and run it.
If you're seeing errors related to unresolved names, you probably need to add a reference or a using directive, or both. If the code references any assemblies or NuGet packages, you need to add those references in the project.
Visual Studio tries to help you identify missing references. When a name is unresolved, a light bulb icon appears in the editor.
If you click the light bulb, you can see some suggestions on how to fix the issue. Fixes might be to:. For example, in the following screen, you can choose to add using System; to the start of the code file to resolve the unresolved name Console :. NET references can be in the form of assemblies or NuGet packages. Usually, if you find source code, the publisher or author will explain what assemblies are required and what packages the code depends on.
To add a reference to a project manually, right-click on the References node in the Solution Explorer , choose Add Reference , and locate the required assembly. You can find assemblies and add references by following the instructions in Add or remove references by using the reference manager.
If Visual Studio detects a missing NuGet package, a light bulb appears and gives you the option to install it:. If that doesn't solve the issue and Visual Studio can't locate the package, try searching for it online. Because different versions of the. NET Framework have some degree of backward compatibility, a newer framework might run code written for an older framework without any modifications. But, sometimes you need to target a specific framework.
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