Run/Debug Configuration: .NET Project

Project:

Choose a startup project for this configuration.

Note that only projects of executable types (for example, Console Application) could be selected here.

If you want to run a non-executable project (for example, Class Library), use the .NET Executable configuration and choose an executable that will run your project.

Target framework:

A .NET Framework version that will be used to run this configuration.

Exe path:

The path to the executable file of the selected target project is calculated automatically, but you can change it if needed.

Program arguments:

Arguments that will be passed to the executable when the configuration is started.

Multiple arguments should be separated with whitespaces.

For some project types (for example, Web Application), JetBrains Rider will fill this field automatically so that the target project could be started correctly.

Working directory:

The working directory is automatically set to the bin/debug path of the selected target project, but you can change it if needed.

Environmental variables:

Here you can specify custom environment variables for the target executable.

Runtime variables:

Both dotnet and Mono support setting custom runtime arguments when launching an application. For example Mono supports many runtime arguments to customize how your application is run. You can select the garbage collector to be used (--gc=boehm or --gc=sgen), on macOS you can select the runtime architecture to be used (--arch=32 or --arch=64), and more.

Use mono runtime

If you are working on Windows, you can check how your application works with the mono runtime. JetBrains Rider will use the mono executable specified on the Build, Execution, Deployment | Toolset and Build page of JetBrains Rider settings Ctrl+Alt+S.

To debug with mono runtime, you need:

• Mono 4.2+

• Portable PDB in your projects — <debugtype>portable</debugtype> in the .csproj file, or alternatively, generate mdb with pdb2mdb.

Use external console:

By default, the output of .NET Core and Mono applications is shown in the Run or Debug window. Use this checkbox to show the output in an external window.

This checkbox does not affect classic .NET application types (for example, .NET Console Application) — their output in always shown in an external window.

Open browser

In the field in this area, specify a project HTML file to create a correct URL to this file according to the project root to be started on the built-in web server. For example, if you choose project_root/inner_folder/index.html the resulting URL will be http://localhost:63342/project_root/inner_folder/index.html. If you select the After Launch checkbox, the browser will open this page automatically after the application starts. Alternatively you can view the same result by opening the page with this URL address in the browser of your choice manually.

After launch

Select this checkbox to automatically open the browser. From the list, select the browser to use:

• To use the system default browser, select Default.

• To use a custom browser, select it from the list. Note that debugging of JavaScript client-side code is only supported in Google Chrome and in other Chromium-based browsers.

• To configure browsers, click and adjust the settings in the Web Browsers and Preview dialog that opens. For more information, see Configure browsers.

with JavaScript debugger

Select this checkbox to enable debugging the client-side code in the selected browser.

Name

Specify a name for the run/debug configuration to quickly identify it when editing or running the configuration, for example, from the Run popup Alt+Shift+F10.

Allow parallel run

Select to allow running multiple instances of this run configuration in parallel.

By default, it is disabled, and when you start this configuration while another instance is still running, JetBrains Rider suggests to stop the running instance and start another one. This is helpful when a run/debug configuration consumes a lot of resources and there is no good reason to run multiple instances.

Store as project file

Save the file with the run configuration settings to share it with other team members. The default location is .idea/runConfigurations. However, if you do not want to share the .idea directory, you can save the configuration to any other directory within the project.

By default, it is disabled, and JetBrains Rider stores run configuration settings in .idea/workspace.xml.

Alt+Insert

Create a run/debug configuration.

Alt+Delete

Delete the selected run/debug configuration. Note that you cannot delete default configurations.

Ctrl+D

Create a copy of the selected run/debug configuration. Note that you create copies of default configurations.

The button is displayed only when you select a temporary configuration. Click this button to save a temporary configuration as permanent.

Move into new folder / Create new folder. You can group run/debug configurations by placing them into folders.

To create a folder, select the configurations within a category, click , and specify the folder name. If only a category is in focus, an empty folder is created.

Then, to move a configuration into a folder, between the folders or out of a folder, use drag or and buttons.

To remove grouping, select a folder and click .

Click this button to sort configurations in the alphabetical order.

Alt+Insert

Click this icon to add one of the following available tasks:

• Run External tool: select to run an external application. In the dialog that opens, select one or multiple applications you want to run. If it is not defined in JetBrains Rider yet, add its definition.

• Run Another Configuration: select to execute another run/debug configuration. In the dialog that opens, select the configuration to be run.

• Build solution: select this option to build the solution before launching the configuration.

• Run File Watchers: select this option to have JetBrains Rider apply all the currently active File Watchers.

• Run Grunt task: select this option to run a Grunt task.

  In the Grunt task dialog that opens, specify the Gruntfile.js where the required task is defined, select the task to execute, and specify the arguments to pass to the Grunt tool.

  Specify the location of the Node.js interpreter, the parameters to pass to it, and the path to the grunt-cli package.

• Run gulp task: select this option to run a Gulp task.

  In the Gulp task dialog that opens, specify the Gulpfile.js where the required task is defined, select the task to execute, and specify the arguments to pass to the Gulp tool.

  Specify the location of the Node.js interpreter, the parameters to pass to it, and the path to the gulp package.

• Run npm script: select this option to execute an npm script.

  In the NPM Script dialog that opens, specify the npm run/debug configuration settings.

• Compile TypeScript: select to run the built-in TypeScript compiler and thus make sure that all the changes you made to your TypeScript code are reflected in the generated JavaScript files. In the TypeScript Compile Settings dialog that opens, select or clear the Check errors checkbox to configure the behaviour of the compiler in case any errors are detected:

  • If the Check errors checkbox is selected, the compiler will show all the errors and the run configuration will not start.

  • If the Check errors checkbox is cleared, the compiler will show all the detected errors but the run configuration still will be launched.

• Generate CoffeeScript Source Maps: select this option to generate the source maps for your CoffeeScript sources. In the dialog that opens, specify where your CoffeeScript source files are located.

• Upload files to Remote Host: select this option to have the application files automatically uploaded to the server according to the default server access configuration.

• Run Remote External Tool: adds a remote SSH external tool.

Alt+Delete

Click this icon to remove the selected task from the list.

Enter

Click this icon to edit the selected task. Make the necessary changes in the dialog that opens.

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Alt+Up/ Alt+Down

Click these icons to move the selected task one line up or down in the list. The tasks are performed in the order that they appear in the list.

Show this page

Select this checkbox to show the run/debug configuration settings prior to actually starting the run/debug configuration.

Activate tool window

By default this checkbox is selected and the Run or the Debug tool window opens when you start the run/debug configuration.

Otherwise, if the checkbox is cleared, the tool window is hidden. However, when the configuration is running, you can open the corresponding tool window for it yourself by pressing Alt+4 or Alt+5.