Followed instructions, but cannot build

[RWLTOK]

I have tried build micropython latest in git as well as the 1.16 tag. Just the other day, I built 1.16 for a pyboardv11.

When it comes to the step to make, the following happens.

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~/micropython/ports/rp2$ make
[ -d build-PICO ] || cmake -S . -B build-PICO -DPICO_BUILD_DOCS=0 -DMICROPY_BOARD=PICO
make -s -C build-PICO
make[1]: *** No targets specified and no makefile found.  Stop.
Makefile:18: recipe for target 'all' failed
make: *** [all] Error 2

Thanks

PS: These are the instructions: https://datasheets.raspberrypi.org/pico ... on-sdk.pdf

OMT... I am running Ubuntu 18.04

After noodling around I realized it needs a minimum version of cmake 3.12. I went to https://apt.kitware.com/ to install it.

[hippy]

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make [ -d build-PICO ] || cmake -S . -B build-PICO -DPICO_BUILD_DOCS=0 -DMICROPY_BOARD=PICO

Isn't that running 'make' before 'cmake' ?

Try this before trying anything more complicated -

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cd ~/micropython/ports/rp2
mkdir build
cd build
cmake ..
make 

That's what I am using on my Pi using Raspberry Pi OS, and pretty much the same under Windows.

[pythoncoder]

The README.md in the ports/rp2 directory has instructions. Running them from that directory works fine here under Ubuntu 20.04. I suggest trying that approach. If it doesn't work there may be something wrong with the build environment.