SOLVED Cura from source libArcus not found

[ChrisRiddell 13]

Hello,

Has anyone run Cura from source on Ubuntu 17.10 (fresh install) I have hit a snag where cura_app.py can't find Arcus, I compiled libArcus following the instructions on the github

 

$ mkdir build && cd build$ cmake ..$ make# make install

 

Their is a Arcus.so file in /usr/local/lib/python3/dist-packages

 

Original exception was:Traceback (most recent call last):File "cura_app.py", line 54, in import Arcus #@UnusedImportModuleNotFoundError: No module named 'Arcus'

 

[smartavionics 157]

I run Cura from source on Linux and have to use this little shell script (I install Cura under /opt/cura).

#!/bin/sh
PATH=/opt/cura/bin:$PATH PYTHONPATH=/opt/cura/lib/python3/dist-package /opt/cura/bin/cura $*

This crap forum seems to have screwed the formatting of the code but I hope you get the idea.

[ChrisRiddell 13]

Hmm maybe I have done it wrong as I did not install cura I cloned the repos following Nallath guide he posted in one of the github issues.

“Checkout Cura, Uranium, CuraEngine, LibArcus.

Build LibArcus

Build Cura engine

Ensure Uranium is in your pythonpath.

Run cura_app.py with python3

If complaining about dependencies, install those with pip.

That's pretty much how i recently installed my new laptop.”

maybe this method does not work on Ubuntu :/

[smartavionics 157]

There's a repo called cura-build-environment. I built and installed that and it provides all (or nearly all) of the dependencies required to build/run cura. It takes a while to build but I found this the most reliable way of building cura from source.

[ChrisRiddell 13]

I kept getting stuck with the cura-build-environment I tried googling on how to resolve it but most of the stuff I found did not work.

make[3]: *** [getarch_2nd] Error 1

gemv.c: In function ‘sgemv_’:

gemv.c:248:41: error: ‘GEMM_MULTITHREAD_THRESHOLD’ undeclared (first use in this function); did you mean ‘GEMM_THREAD_TR’?

if ( MNK <= (24.0 * 24.0 * (double) (GEMM_MULTITHREAD_THRESHOLD*GEMM_MULTITHREAD_THRESHOLD) ) )

^~~~~~~~~~~~~~~~~~~~~~~~~~

GEMM_THREAD_TR

gemv.c:248:41: note: each undeclared identifier is reported only once for each function it appears in

Makefile:841: recipe for target 'sgemv.o' failed

make[4]: *** [sgemv.o] Error 1

make[4]: *** Waiting for unfinished jobs....

Makefile:143: recipe for target 'libs' failed

make[3]: *** [libs] Error 1

CMakeFiles/OpenBLAS.dir/build.make:113: recipe for target 'OpenBLAS-prefix/src/OpenBLAS-stamp/OpenBLAS-build' failed

make[2]: *** [OpenBLAS-prefix/src/OpenBLAS-stamp/OpenBLAS-build] Error 2

CMakeFiles/Makefile2:640: recipe for target 'CMakeFiles/OpenBLAS.dir/all' failed

make[1]: *** [CMakeFiles/OpenBLAS.dir/all] Error 2

Makefile:83: recipe for target 'all' failed

make: *** [all] Error 2

[ChrisRiddell 13]

Okay fixed that error by merging in https://github.com/Ultimaker/cura-build-environment/pull/20

But now I'm getting this and have not been able to sort it out I tried installing setuptools using pip3 and installing python3-setuptools from the repos but nothing :/

[ 5%] Built target Python

[ 10%] Built target Sip

[ 15%] Built target OpenBLAS

[ 15%] Performing build step for 'NumPy'

Running from numpy source directory.

Traceback (most recent call last):

File "setup.py", line 386, in

setup_package()

File "setup.py", line 363, in setup_package

from setuptools import setup

ImportError: No module named 'setuptools'

CMakeFiles/NumPy.dir/build.make:113: recipe for target 'NumPy-prefix/src/NumPy-stamp/NumPy-build' failed

make[2]: *** [NumPy-prefix/src/NumPy-stamp/NumPy-build] Error 1

CMakeFiles/Makefile2:416: recipe for target 'CMakeFiles/NumPy.dir/all' failed

make[1]: *** [CMakeFiles/NumPy.dir/all] Error 2

Makefile:83: recipe for target 'all' failed

make: *** [all] Error 2