I can't succeed with npm install packages after $npm install, it shows this output:
> [email protected] install /home/samuel/testes/Avanade Angular Academy by Gama/gama-avanade-tryout01/node_modules/canvas > node-gyp rebuild ./util/has_lib.sh: 31: ./util/has_lib.sh: pkg-config: not found gyp: Call to './util/has_lib.sh freetype' returned exit status 0 while in binding.gyp. while trying to load binding.gyp gyp ERR! configure error gyp ERR! stack Error: `gyp` failed with exit code: 1 gyp ERR! stack at ChildProcess.onCpExit (/home/samuel/.npm-global/lib/node_modules/npm/node_modules/node-gyp/lib/configure.js:336:16) gyp ERR! stack at emitTwo (events.js:106:13) gyp ERR! stack at ChildProcess.emit (events.js:191:7) gyp ERR! stack at Process.ChildProcess._handle.onexit (internal/child_process.js:219:12) gyp ERR! System Linux 4.9.0-4-amd64 gyp ERR! command "/usr/bin/node" "/home/samuel/.npm-global/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild" gyp ERR! cwd /home/samuel/testes/Avanade Angular Academy by Gama/gama-avanade-tryout01/node_modules/canvas gyp ERR! node -v v6.12.0 gyp ERR! node-gyp -v v3.6.2 gyp ERR! not ok npm ERR! code ELIFECYCLE npm ERR! errno 1 npm ERR! [email protected] install: `node-gyp rebuild` npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the [email protected] install script. npm ERR! This is probably not a problem with npm. There is likely additional logging output above. npm ERR! A complete log of this run can be found in: npm ERR! /home/samuel/.npm/_logs/2017-12-12T02_40_55_700Z-debug.log What should I do? Thanks for all of you help!