Following the advice in https://doc.sagemath.org/html/en/developer/walk_through.html#rebuilding-sage
when trying ./sage -br I get [...] *********************************************** /bin/sh: @cd: command not found make: *** [sagelib-SAGE_VENV-no-deps] Error 127 real 0m0.029s user 0m0.024s sys 0m0.003s *************************************************************** Error building Sage. The following package(s) may have failed to build (not necessarily during this run of 'make sagelib-no-deps'): It is safe to delete any log files [...] What can I do? Guillermo -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-support/CANnG18_L1M%2BM1%2BNbfHc%3Do9zQ%2Bf-AwcCS2ubT0CwvgkMEwf51iQ%40mail.gmail.com.