APP Develop BLog

It means the port 8081 is taken by node daemon, you need to find the PID to kill. sudo lsof -i :8081 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME node 10038 46916597qq 13u IPv6 0x8c26a6ed2b298fbd 0t0 TCP *:sunproxyadmin (LISTEN) sudo kill -9 10038 Simple and easy!

If you want to fix this with your editor (vi) you can go to line 3936 and make the following changes $ vim staging_dir/host/bin/automake-1.15 goto line :3936 and change $text =~ s/\${([^ \t=:+{}]+)}/substitute_ac_subst_variables_worker ($1)/ge; to $text =~ s/\$\{([^ \t=:+\{\}]+)\}/substitute_ac_subst_variables_worker ($1)/ge; The error is with automake and perl v5.26. In perl v5.22, using a literal { in a regular expression was deprecated, and will emit a warning if it isn't escaped: \{. In v5.26, this won't just warn, it'll cause a syntax error.

Add option --no-discard-stderr to Makefile ```` line 3680 in Makefile doc/aclocal-$(APIVERSION).1: $(aclocal_script) lib/Automake/Config.pm $(update_mans) aclocal-$(APIVERSION) doc/automake-$(APIVERSION).1: $(automake_script) lib/Automake/Config.pm $(update_mans) automake-$(APIVERSION) --no-discard-stderr ````