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You might see one of the following errors:
- "A 64-bit debugging operation is taking longer than expected." or
- "A debugger operation is taking longer than expected."
In these scenarios, Visual Studio sent a request to msvsmon.exe, and it's taken a long time for the result of that request to come back.
The most common causes for this error are:
You have networking security software installed on your computer that has caused the networking stack to be unreliable, and it's dropped packets going over
localhost. Try disabling all network security software and see whether this resolves it. If so, report to your network security software vendor that the software is interfering withlocalhosttraffic. This shouldn't occur with Visual Studio 2019 and later, because those versions don't use sockets for this communication.You're running into an issue where Visual Studio becomes unresponsive, or other performance problem. If the problem happens regularly, you can collect dumps of Visual Studio (devenv.exe) and the worker process (msvsmon.exe) and send them to Microsoft. For information about reporting a problem, see How to Report a Problem with Visual Studio.
- If you're using a version of Visual Studio prior to Visual Studio 2022, you may be trying to debug a 64-bit application while running in the 32-bit Visual Studio process. To resolve, follow instructions to debug a 64-bit application.