Hello, And a small update: After running the garbage collector, the problem went away (And saved me about 20GBs under /gnu/store). I'm suspecting this was a corrupt store. On 9 March 2016 at 16:33, Ludovic Courtès wrote: > Dennis Mungai skribis: > > > env TEMPDIR=/gnu/tmp GUIX_PACKAGE_PATH=../guix-bioinformatics > > ./pre-inst-env guix build -K ocl-icd > > Note that setting TEMPDIR here (or even TMPDIR) has no effect, since > it’s the ‘guix-daemon’ process, not ‘guix build’, that creates temporary > files. > > > Error encountered: > > > > guix build: error: build failed: error parsing derivation > > `/gnu/store/7f9hwk8v9vzghc93m93y94iibvcc3mvd-ruby-2.3.0.tar.xz.drv': > > expected string `Derive([' > > Could you send the content of the file above? > > It looks like your store may be be corrupt. Did you modify files by > hand under /gnu/store? This would void your warranty. :-) > > Thanks, > Ludo’. >