JetBrains Rider 2017.3 Help


File | Settings | Build, Execution, Deployment | Debugger for Windows and Linux
JetBrains Rider | Preferences | Build, Execution, Deployment | Debugger for macOS
Ctrl+Alt+S settings

Use this page to configure behavior of the Debugger and customize its view.

Common options

Focus application on breakpoint If this checkbox is selected, on hitting a breakpoint, JetBrains Rider will show the location of this breakpoint in the editor and will attempt to bring its frame to the front.
Show debug window on breakpointIs this checkbox is selected, JetBrains Rider activates the Debug window on hitting a breakpoint.
Hide debug window on process termination Automatically hide the Debug window when the debugged program terminates.
Scroll execution point to centerIf this checkbox is selected, the line with the current execution point will be kept in the middle of the screen.


Allow property evaluations and other implicit function calls Enables automatic evaluation of properties and implicit function calls in the Debug window.
Evaluation timeout Defines the timeout, after which a method call is aborted.
Ask for location of missing source files
Break on user-unhandled exceptions (.NET/.NET Core only)
Disable JIT optimization on module load (.NET/.NET Core only) This option (which is on by default) suppresses optimization made by the just-in-time (JIT) compiler. This means that the non-optimized code will be executed slower but it will match the source code.
Normally, you need this option to be enabled unless you are debugging a problem that cannot be reproduced in the non-optimized code.
If you clear this option, the debug information that JetBrains Rider displays could be limited.
Note also that when you attach to a running process, the JIT optimization will be only disabled for modules that are loaded after you attach.
Enable external source debug (.NET/.NET Core only) Enables automatic decompilation and debugging of external code.
If this option is disabled, you can still navigate to the external code and set breakpoints there. However, breakpoints in external code will be ignored by the debugger and you will not be able to step into the external code. So your debugging experience will be limited by the source code in your solution.

Built-in server

PortUse this spin box to specify the port on which the built-in web server runs. By default this port is set to port 63343 through which JetBrains Rider accepts connections from services. You can set the port number to any other value starting with 1024 and higher.
Can accept external connections If this checkbox is selected, then the files on the built-in server running on the specified port are accessible from another computer.
If this checkbox is cleared (by default), then the debugger listens only to local connections.
Allow unsigned requests For security reasons, any request to a page on the built-in server from outside JetBrains Rider is by default rejected and the following authorization pop-up window is displayed:
To access the requested page, click Copy authorization URL to clipboard and paste the generated token in the address bar of the browser.

However this behaviour may be annoying, for example, it may block your debugging session if manual intervention is impossible. To suppress displaying the authorization pop-up window, select the Allow unsigned requests checkbox.

Last modified: 19 April 2018

See Also