Trying to compile Marlin for Robin Nano v1.3

[maxgerhardt]

@james.alexander.lewi

RuntimeError: deque mutated during iteration:

@james.alexander.lewi

master\buildroot\share\PlatformIO\scripts\marlin.py”, line 22:
for define in env[‘CPPDEFINES’]:

Due to the Marlin version this repo is based on being older, it exhibits this bug when used against the latest PlatformIO core.

We have already discussed how to fix that marlin.py script in for example

Trying to compile Marlin 2.1.2 for Ender 3 SKR Mini v2.0 board

A more correct fix on the Marlin builder script is go to buildroot/share/PlatformIO/scripts/marlin.py and in line 16, replace the function with the current Marlin code The important thing is that it does .copy() in line 19. [grafik]

That is, just turn

@james.alexander.lewi

for define in env[‘CPPDEFINES’]:

into

for define in env['CPPDEFINES'].copy()