Run/debug configurations

Configure: Run | Edit Configurations

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MPS uses run/debug configurations to run, debug, and test your code. Each configuration is a named set of startup properties that define what to execute and what parameters and environment should be used.

There are two types of run/debug configurations:

Temporary — created every time you
Permanent — created explicitly from a template or by saving a temporary configuration. Permanent configurations remain as part of your project until you remove them.

So whenever you run/debug or test your code, MPS either uses an existing permanent run/debug configuration or creates a new temporary one.

Permanent configurations have opaque icons while the icons of temporary configurations are semi-transparent. The red cross over the configuration icon indicates an error in configuration settings.

The maximum number of temporary configurations is 5. The older ones are automatically deleted when new ones are added. If necessary, you can increase this limit in Settings | Advanced Settings | Run/Debug | Temporary Run/Debug configurations limit.

Create permanent run/debug configurations

MPS provides the following ways to create a permanent run/debug configuration:

Save a temporary run/debug configuration as permanent.
Create from a template or copy an existing configuration.

Save a temporary configuration as permanent

Select a temporary configuration in the run/debug configuration switcher, click /, and select Save Configuration.
Alternatively, select a temporary configuration in the Run/debug configurations dialog and click on the toolbar.

MPS provides run/debug configuration templates for different languages, tools, and frameworks. The list of available templates varies depending on the installed and enabled plugins.

Create a run/debug configuration from a template

Go to Run | Edit Configurations. Alternatively, press Alt+Shift+F10, then 0.
In the Run/Debug Configuration dialog, click on the toolbar or press Alt+Insert. The list shows the run/debug configuration templates.
Select the desired template. If you are not sure which template to choose, refer to Run/debug configurations dialog for more information on particular templates.
Specify the run/debug configuration name in the Name field. This name will be shown in the list of the available run/debug configurations.
Select Allow multiple instances if you want to allow multiple instances of the configuration to run at the same time. If this option is disabled, attempting to re-run the configuration will terminate the active session.
Configure the run/debug configuration parameters. The list of mandatory and optional parameters may vary depending on the selected run/debug configuration type.
Some optional parameters are hidden. To view and enable them, click the Modify options link.
For the detailed description of the selected template, see the respective section of run/debug configurations reference.
In the Before launch section, define whether you want to perform any specific actions before launching the application, for example,
For more information about particular Before launch activities, refer to Before launch
You can either run the configuration right away, or save the configuration to run it later.
- Click OK to save the run configuration for later and close the dialog.
- To run the configuration right away, click Run.

If you are working in a team, you might want to share your run/debug configurations so that your teammates could run the application using the same configuration or enable them to remotely attach to the process you are running.

For these purposes, MPS provides a mechanism to store your run/debug configurations as project files and share them through VCS. The same mechanism can also be used when you want to send your configuration as a file to someone else. This saves a lot of time as run/debug configurations sometimes get sophisticated, and keeping them in sync manually would be tedious and error-prone.

Go to Run | Edit Configurations. Alternatively, press Alt+Shift+F10, then 0.
Select the run/debug configuration you want to share, enable the Store as project file option, and specify the location where the configuration file will be stored.
You can configure any location unless compatibility with MPS 2019.3 and earlier is required. For compatibility with these versions, store the file in the suggested location.
(Optional) If the .idea directory is added to VCS ignored files, the .idea/runConfigurations subfolder will be ignored, too. If you use Git for your project, you can share .idea/runConfigurations only and leave .idea ignored by modifying .gitignore as follows:
/.idea/* !/.idea/runConfigurations

Run/debug configuration templates

All run/debug configurations are based on templates, which implement the startup logic, define the list of parameters and their default values. The list of available templates is predefined in the installation and can only be extended via plugins. However, you can edit default parameter values in each template to streamline the setup of new run/debug configurations.

Configure the default values for a template

Go to Run | Edit Configurations. Alternatively, press Alt+Shift+F10, then 0.
In the left-hand pane of the run/debug configuration dialog, click Edit configuration templates.
Specify the desired default parameters and click OK to save the template.

Run/debug configuration folders

When there are many run/debug configurations of the same type, you can group them in folders, so they become easier to distinguish visually.

Once grouped, the run/debug configurations appear in the list under the corresponding folders.

Create a folder for run/debug configurations

Go to Run | Edit Configurations. Alternatively, press Alt+Shift+F10, then 0.
In the Run/Debug Configurations dialog, select a configuration type and click on the toolbar. A new empty folder for the selected type is created.
Specify the folder name in the text field to the right or accept the default name.
Select the desired run/debug configurations and move them under the target folder.
Apply the changes. If a folder is empty, it will not be saved.

When you no longer need a folder, you can delete it Delete. The run/debug configurations grouped under this folder will be moved under the root of the corresponding run/debug configuration type.

Last modified: 28 June 2024