Compiling ArduPilot: Errors re Waf

ArduCopter
1

Hi! I’m having trouble testing a new target. Following Porting to a new flight controller board — Dev documentation and Building the code — Dev documentation.

Of note:
Tools/environment_install/install-prereqs-ubuntu.sh -y crashes with this error:

+ echo source /mnt/c/Users/david/Desktop/ardupilot/Tools/completion/completion.bash
+ eval source /mnt/c/Users/david/Desktop/ardupilot/Tools/completion/completion.bash
++ source /mnt/c/Users/david/Desktop/ardupilot/Tools/completion/completion.bash
+++ $'\r'
/mnt/c/Users/david/Desktop/ardupilot/Tools/completion/completion.bash: line 2: $'\r': command not found

./waf results in this error:

david@Data-Desktop:/mnt/c/Users/david/Desktop/ardupilot$ ./waf
/usr/bin/env: ‘python\r’: No such file or directory

python3 waf results in this error:

david@Data-Desktop:/mnt/c/Users/david/Desktop/ardupilot$ python3 waf
The project was not configured: run "waf configure" first!

waf configure results in this:

david@Data-Desktop:/mnt/c/Users/david/Desktop/ardupilot$ waf configure
Command 'waf' not found, did you mean:
  command 'wtf' from deb bsdgames (2.17-29)
  command 'caf' from deb libcoarrays-mpich-dev (2.9.2-3)
  command 'caf' from deb libcoarrays-openmpi-dev (2.9.2-3)
  command 'paf' from deb libpod-abstract-perl (0.20-3)
  command 'wmf' from deb wmf (1.0.5-8.1)
  command 'wdf' from deb wit (3.01a-4)
Try: sudo apt install <deb name>
david@Data-Desktop:/mnt/c/Users/david/Desktop/ardupilot$

Any ideas? Thanks!

2

Those look like line termination errors like those that can appear when you move files between operating systems like Windows and Linux.

I suspect you downloaded and unzipped the repo using Windows. Instead, install git within WSL and use git clone to retrieve the repository.

3

Thank you. Indeed, that solves the first problem, re install-prereqs-ubuntu. Unfortunately, I’m still not sure how to install WAF. (Same errors as above after cloning natively)

edit: Solved! python3 waf configure. Works on the Windows, or Linux-cloned versions. So, it sounds like the line endings issue is only if trying to use the shebang to find python, ie if running it as an executable.

Thank you!

4

./waf works fine on properly configured WSL environments. You have some lingering issues.

5

Continued one step further. Unable to execute python waf copter:

Embedding file hwdef.dat:/mnt/c/Users/david/Desktop/ardupilot/build/AnyleafH7/hw.dat
Traceback (most recent call last):
  File "/mnt/c/Users/david/Desktop/ardupilot/modules/waf/waflib/Scripting.py", line 158, in waf_entry_point
    run_commands()
  File "/mnt/c/Users/david/Desktop/ardupilot/modules/waf/waflib/Scripting.py", line 251, in run_commands
    ctx = run_command(cmd_name)
  File "/mnt/c/Users/david/Desktop/ardupilot/modules/waf/waflib/Scripting.py", line 235, in run_command
    ctx.execute()
  File "/mnt/c/Users/david/Desktop/ardupilot/Tools/ardupilotwaf/ardupilotwaf.py", line 207, in execute
    return execute_method(self)
  File "/mnt/c/Users/david/Desktop/ardupilot/modules/waf/waflib/Scripting.py", line 573, in execute
    return execute_method(self)
  File "/mnt/c/Users/david/Desktop/ardupilot/modules/waf/waflib/Build.py", line 231, in execute
    self.execute_build()
  File "/mnt/c/Users/david/Desktop/ardupilot/modules/waf/waflib/Build.py", line 244, in execute_build
    self.recurse([self.run_dir])
  File "/mnt/c/Users/david/Desktop/ardupilot/modules/waf/waflib/Context.py", line 286, in recurse
    user_function(self)
  File "/mnt/c/Users/david/Desktop/ardupilot/wscript", line 849, in build
    _build_dynamic_sources(bld)
  File "/mnt/c/Users/david/Desktop/ardupilot/wscript", line 680, in _build_dynamic_sources
    bld.srcnode.find_dir('modules/uavcan/libuavcan/include').abspath()
AttributeError: 'NoneType' object has no attribute 'abspath'
david@Data-Desktop:/mnt/c/Users/david/Desktop/ardupilot$