N. Exist

I have the same issue with ubuntu 18.04, swig 4.0, cmake 3.14.4 and python 3.6.0. it also occurs when trying to build with docker as well

``` def testBuildWithMetaData(algo, distmethod, x, s, out): i = SPTAG.AnnIndex(algo, 'Float', x.shape[1]) i.SetBuildParam("NumberOfThreads", '4') i.SetBuildParam("DistCalcMethod", distmethod) shape = float(x.shape[0]) print(type(shape)) if i.BuildWithMetaData(x.tobytes(), s, shape): i.Save(out) def Test(algo, distmethod): x =...

I had similar issues but with respect to linking for python and boost, maybe its something similar. Are boost and boost-python compatible with your system python distro?

I'm also facing this issue, @mbickel do you have some test data that can be used to verify our installations are correct? when running with verbose I get `pre premap...