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undefined symbol: sgemv_thread_n

Dirk,

thanks for your help. At work I have (ubuntu 16.04):

ii  libblas-common 3.6.0-2ubuntu2  amd64        Dependency package for 
all BLAS implementations
ii  libblas-dev    3.6.0-2ubuntu2  amd64        Basic Linear Algebra 
Subroutines 3, static library
ii  libblas3       3.6.0-2ubuntu2  amd64        Basic Linear Algebra 
Reference implementations, shared library

and everything works before and after upgrading (/usr/bin/R). However, 
at home (ubuntu 17.10):

goran at M6800:~$ dpkg -l | grep blas
ii  libblas-dev:amd64 3.7.1-3ubuntu2   amd64        Basic Linear Algebra 
Subroutines 3, static library
ii  libblas3:amd64    3.7.1-3ubuntu2   amd64        Basic Linear Algebra 
Reference implementations, shared library
ii  libopenblas-base:amd64  0.2.20+ds-4  amd64        Optimized BLAS 
(linear algebra) library (shared library)

and it worked before upgrade but not after. Seems to be missing 
'libblas-common'. So I try to install:

goran at M6800:~$ sudo apt install libblas-common
[sudo] password for goran:
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package libblas-common

So there is no such package in 17.10, but I have it in 16.04. What can 
be the replacement? Maybe I should downgrade to R-3.4.2, which works, 
but it doesn't feel right.

G?ran
On 2017-12-01 21:12, G?ran Brostr?m wrote: