Cannot build asset_tracker example application from command line on mac os

[brendanyounger]

I receive this output from west when trying to build the asset_tracker example from either master or v1.1-branch:

west build -b nrf9160_pca20035ns
-- west build: build configuration:
source directory: /Users/brendanyounger/ncs/nrf/applications/asset_tracker
build directory: /Users/brendanyounger/ncs/nrf/applications/asset_tracker/build (created)
BOARD: nrf9160_pca20035ns (origin: command line)
-- west build: generating a build system
-- Using application from '/Users/brendanyounger/ncs/nrf/applications/asset_tracker'
Zephyr version: 2.0.99
-- Found PythonInterp: /usr/local/bin/python3 (found suitable version "3.7.5", minimum required is "3.4")
-- Selected BOARD nrf9160_pca20035ns
-- Found west: /Users/brendanyounger/Library/Python/3.7/bin/west (found suitable version "0.6.3", minimum required is "0.6.0")
-- Cache files will be written to: /Users/brendanyounger/Library/Caches/zephyr
USING OUT OF TREE BOARD
-- Loading /Users/brendanyounger/ncs/nrf/boards/arm/nrf9160_pca20035/nrf9160_pca20035ns.dts as base
-- Overlaying /Users/brendanyounger/ncs/zephyr/dts/common/common.dts
FATAL ERROR: Couldn't open "nrf9160_pca20035ns.dts.pre.tmp": No such file or directory
CMake Error at /Users/brendanyounger/ncs/zephyr/cmake/dts.cmake:162 (message):
command failed with return code: 1
Call Stack (most recent call first):
/Users/brendanyounger/ncs/zephyr/cmake/app/boilerplate.cmake:566 (include)
CMakeLists.txt:11 (include)

-- Configuring incomplete, errors occurred!

[Didrik Rokhaug]

Hi.

As I have not seen this error before, I have a few questions:

Does the nrf9160_pca20035ns.dts.pre.tmp file exist in your build/zephyr folder?

Are you able to build other samples such as nrf/samples/nrf9160/at_client or zephyr/samples/hello_world?

Have you been able to build other projects from the command line before?

Have you done any changes inside the ncs folder?

Best regards,

Didrik

[brendanyounger]

Hi Didrik,

Thank you for the reply.  I was able to figure it out late last night.  For those in the same situation:

This was caused by the upgrade to Mac OS 10.15 Catalina.  It flagged the compiler as a non-signed binary and quarantined it.  The compiler binary was also truncated to 0 bytes (may or may not have been the fault of the upgrade).  The 0 byte binary ran without errors, but never output a file.

After fixing that issue and removing the cmake cache in ~/Library/Caches/zephyr, the next error was related to python3 linking to the wrong libCrypto library.  Proposed solutions are here https://stackoverflow.com/questions/58272830/python-crashing-on-macos-10-15-beta-19a582a-with-usr-lib-libcrypto-dylib and here https://forums.developer.apple.com/thread/119429

After all of that, I was able to build with west.