[autoware.auto] GDB does not work inside Atom in ADE [closed]

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I am following the directions here to try running GDB inside Atom in ADE:

https://autowarefoundation.gitlab.io/...

These are the terminal commands I am using (they include the workspace preparation steps for code navigation); I just copied and pasted from the docs:

me@host:~/adehome/AutowareAuto 1$ ade start
me@host:~/adehome/AutowareAuto 1$ ade enter                              
me@ade:~$ cd ~/AutowareAuto
me@ade:~/AutowareAuto (master u=)$ rm -rf .clang_complete build install log
me@ade:~/AutowareAuto (master u=)$ export CC=$PWD/tools/clang_complete/cc
me@ade:~/AutowareAuto (master u=)$ export CXX=$PWD/tools/clang_complete/g++
me@ade:~/AutowareAuto (master u=)$ ctags -R .
me@ade:~/AutowareAuto (master u=)$ colcon build --cmake-args '-DCMAKE_BUILD_TYPE=Debug'
me@ade:~/AutowareAuto (master u=)$ atom

Then I open a package, say velodyne_node and set a breakpoint:

I click Launch Debugger... and fill out the info:

Then I click launch and get a whole slew of errors:

What's the right way to fix this?