Why are my breakpoints not hit in CLion?

In case this helps someone else, it turned out that my (somewhat embarrassing) issue was that I was hitting Run instead of Debug. So in the Run menu don't use the play icon, instead choose the cute bug icon instead. Choosing Run was causing it to automatically build the non-debug build so breakpoints wouldn't work. Once I started choosing the bug icon, the breakpoints worked like a charm.

I also had the same Problem. Since 2016.3 CLion changed the CMake workflow so that only one configuration is allowed at one time clion new workflow

The solution is File -> Settings -> Build, Excution, Deployment -> change the build configuration

In my case my CMake option CMAKE_BUILD_TYPE was already set to DEBUG on CMake Settings. However, it was the command set(CMAKE_BUILD_TYPE Release) in the CMakeLists.txt, which was merged by git pull and overrode the CMake Settings while execution. I could not figure out earlier as CMake Debug console was showing -DCMAKE_BUILD_TYPE=Debug

When I changed it to set(CMAKE_BUILD_TYPE Debug) breakpoints were hit again.

In case this helps someone else:

In my case I had to set the -DCMAKE_BUILD_TYPE option to Debug explicitly in Settings -> Build, Execution, Deployment -> CMake

I had a comma in my project path. Removing the comma fixed the problem for me.

In 2019.3, it turns out to be CLion/Preference/Build,Execution,Deployment/CMake/Build type/Debug.

My problem was with the -ffile-prefix-map flag. Once I removed it, everything worked fine.

See https://youtrack.jetbrains.com/issue/CPP-23159 and https://youtrack.jetbrains.com/issue/CPP-15850

I had a different issue that caused my breakpoints not to be hit. I develop both embedded apps and native MacOS console apps with CLion. For the embedded work, GDB needs to be set for your selected Preferences/Toolchains.

For debugging console apps LLDB needs to be selected in Preferences/Toolchains. If it is left on GDB, my breakpoints don't work. Set to LLDB here:

I had the same issue. I noticed that every time I click the debug option, the "Antimalware Service Executable" process starts. I created an exclusion for MinGW folder in windows Defender and it worked fine...

Just like minecrawler said in github, if your os is linux, your should set：

file/Settings/Build,Execution,Deployment/Tllochains/Debugger from Bundled GEB or gdb to Bundled LLDB.

I tried and it worded！

In my case (Linux / Ubuntu) the problem was somehow related to mounted directory. The project was initially opened in CLion from /media/username/ssd/repo/git/projectname. The breakpoints were always disabled with message No executable code is associated with this line.

Then I opened the same project from a symlinked directory ~/git -> /media/username/ssd/repo/git and the breakpoints began to work fine.

In my case I had to edit the file so that everything was compiled again instead of using cache.

In my case, the problem is forget to comment out optimize option add_definitions(-O3) in cmakelists. which let compiler go release.