I can't use lessc to compile in terminal - less

I just install less by using
sudo npm install -g less
and call this to try compile file, but it get error
lessc '/home/annguyen/Desktop/test.less' >'/home/annguyen/Desktop/2.css'
/usr/lib/ruby/2.3.0/rubygems/dependency.rb:319:in `to_specs': Could not find 'less' (>= 0.a) among 102 total gem(s) (Gem::LoadError)
Checked in 'GEM_PATH=/home/annguyen/.rvm/gems/ruby-2.5.0:/home/annguyen/.rvm/gems/ruby-2.5.0#global', execute `gem env` for more information
from /usr/lib/ruby/2.3.0/rubygems/dependency.rb:328:in `to_spec'
from /usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_gem.rb:65:in `gem'
from /usr/local/bin/lessc:22:in `<main>'
how can i fix this, please help me

Related

bootstrap 4.2.1 `bundle install` error occurred while installing ffi (1.10.0)

I am trying to run bundle install on bootstrap 4.2.1 and get this error
An error occurred while installing ffi (1.10.0), and Bundler cannot continue.
Make sure that `gem install ffi -v '1.10.0' --source 'https://rubygems.org/'` succeeds before bundling.
In Gemfile:
jekyll-redirect-from was resolved to 0.14.0, which depends on
jekyll was resolved to 3.8.5, which depends on
jekyll-sass-converter was resolved to 1.5.2, which depends on
sass was resolved to 3.7.3, which depends on
sass-listen was resolved to 4.0.0, which depends on
rb-inotify was resolved to 0.10.0, which depends on
ffi
What I tried:
did everything on https://github.com/twbs/bootstrap
ran gem install ffi -v '1.10.0' --source 'https://rubygems.org/' and gem install ffi
installed / updated ruby
brew install openssl libyaml libffi
xcode-select --install
Tried everything 20 times all over
People say this is a mac Mojave issue... I searched all other questions and there are no working fixes.
How to fix it?
Issue was fixed after installing xcode from mac store that weighs over 10gb just for couple of dependesis
The suggestion by vladhadzhiyski to run brew reinstall libffi worked for me:
$ brew reinstall libffi
==> Reinstalling libffi
==> Downloading https://homebrew.bintray.com/bottles/libffi-3.2.1.mojave.bottle.tar.gz
######################################################################## 100.0%
==> Pouring libffi-3.2.1.mojave.bottle.tar.gz
==> Caveats
libffi is keg-only, which means it was not symlinked into /usr/local,
because some formulae require a newer version of libffi.
For compilers to find libffi you may need to set:
export LDFLAGS="-L/usr/local/opt/libffi/lib"
For pkg-config to find libffi you may need to set:
export PKG_CONFIG_PATH="/usr/local/opt/libffi/lib/pkgconfig"
==> Summary
🍺 /usr/local/Cellar/libffi/3.2.1: 16 files, 296.8KB
$ export LDFLAGS="-L/usr/local/opt/libffi/lib"
$ export PKG_CONFIG_PATH="/usr/local/opt/libffi/lib/pkgconfig"
$ bundle install

Cocoapods update error

I pull info from github and run pod update and get this error:
Setting up CocoaPods master repo
Already up-to-date.
[!] The `master` repo requires CocoaPods 0.29.0 -
Update CocoaPods, or checkout the appropriate tag in the repo.
/Library/Ruby/Gems/2.0.0/gems/claide-0.4.0/lib/claide/command.rb:217:in `rescue in run': undefined method `verbose?' for nil:NilClass (NoMethodError)
from /Library/Ruby/Gems/2.0.0/gems/claide-0.4.0/lib/claide/command.rb:210:in `run'
from /Library/Ruby/Gems/2.0.0/gems/cocoapods-0.28.0/lib/cocoapods/command.rb:52:in `run'
from /Library/Ruby/Gems/2.0.0/gems/cocoapods-0.28.0/bin/pod:24:in `<top (required)>'
from /usr/bin/pod:23:in `load'
from /usr/bin/pod:23:in `<main>'
Edit
I try sudo gem update this update cocoapods to 0.29. Then I run pod update and get:
Unable to find a specification for `cdebug`.
Just running Install command does update if CocoaPods already exists:
sudo gem install cocoapods
No need to uninstall.
Considering Alexander Kostiev comment, if you want or need to uninstall older versions, you can find out what versions you have with this command:
gem list --local | grep cocoapods
The output would be something like this:
cocoapods (0.32.1, 0.31.1)
cocoapods-core (0.32.1, 0.31.1)
cocoapods-downloader (0.5.0, 0.4.1)
And remove specific one with this command:
gem uninstall cocoapods -v 0.31.1
gem uninstall cocoapods-core -v 0.31.1
gem uninstall cocoapods-downloader -v 0.4.1
I had similar issue.
Please try to uninstall CocoaPods and install them once more. This helped me and I hope it'd help you too!

Can't install rmagick gem on Mountain Lion

Note: my situation is almost identical to this: Can't install pg gem on Mountain Lion.
I just upgraded from Snow Leopard to Mountain Lion and Rails is giving me all kinds of problems, especially trying to install the 'rmagick' gem. I'm running Ruby 1.9.3-p362 and Rails 3.2.11.
➜ git:(master) ✗ sudo gem install rmagick -v 2.13.1
Building native extensions. This could take a while...
ERROR: Error installing rmagick:
ERROR: Failed to build gem native extension.
/Users/sscirrus/.rvm/rubies/ruby-1.9.2-p320/bin/ruby extconf.rb
checking for Ruby version >= 1.8.5... yes
checking for gcc-4.2... yes
checking for Magick-config... yes
Warning: Found more than one ImageMagick installation. This could cause problems at runtime.
/opt/local/bin/Magick-config reports version 6.6.6 Q8 is installed in /opt/local
/OPT/LOCAL/BIN/Magick-config reports version 6.6.6 Q8 is installed in /opt/local
/USR/LOCAL/BIN/Magick-config reports version 6.8.0 Q16 is installed in /USR/LOCAL/Cellar/imagemagick/6.8.0-10
Using 6.6.6 Q8 from /opt/local.
checking for ImageMagick version >= 6.4.9... yes
checking for HDRI disabled version of ImageMagick... yes
checking for stdint.h... *** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.
Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/Users/sscirrus/.rvm/rubies/ruby-1.9.2-p320/bin/ruby
/Users/sscirrus/.rvm/rubies/ruby-1.9.2-p320/lib/ruby/1.9.1/mkmf.rb:368:in `try_do': The complier failed to generate an executable file. (RuntimeError)
You have to install development tools first.
from /Users/sscirrus/.rvm/rubies/ruby-1.9.2-p320/lib/ruby/1.9.1/mkmf.rb:452:in `try_cpp'
from /Users/sscirrus/.rvm/rubies/ruby-1.9.2-p320/lib/ruby/1.9.1/mkmf.rb:834:in `block in have_header'
from /Users/sscirrus/.rvm/rubies/ruby-1.9.2-p320/lib/ruby/1.9.1/mkmf.rb:693:in `block in checking_for'
from /Users/sscirrus/.rvm/rubies/ruby-1.9.2-p320/lib/ruby/1.9.1/mkmf.rb:280:in `block (2 levels) in postpone'
from /Users/sscirrus/.rvm/rubies/ruby-1.9.2-p320/lib/ruby/1.9.1/mkmf.rb:254:in `open'
from /Users/sscirrus/.rvm/rubies/ruby-1.9.2-p320/lib/ruby/1.9.1/mkmf.rb:280:in `block in postpone'
from /Users/sscirrus/.rvm/rubies/ruby-1.9.2-p320/lib/ruby/1.9.1/mkmf.rb:254:in `open'
from /Users/sscirrus/.rvm/rubies/ruby-1.9.2-p320/lib/ruby/1.9.1/mkmf.rb:276:in `postpone'
from /Users/sscirrus/.rvm/rubies/ruby-1.9.2-p320/lib/ruby/1.9.1/mkmf.rb:692:in `checking_for'
from /Users/sscirrus/.rvm/rubies/ruby-1.9.2-p320/lib/ruby/1.9.1/mkmf.rb:833:in `have_header'
from extconf.rb:193:in `<main>'
Gem files will remain installed in /Users/sscirrus/.rvm/gems/ruby-1.9.2-p320/gems/rmagick-2.13.1 for inspection.
Results logged to /Users/sscirrus/.rvm/gems/ruby-1.9.2-p320/gems/rmagick-2.13.1/ext/RMagick/gem_make.out
➜ applyco git:(master) ✗ brew install imagemagick --disable-openmp
Warning: It appears you have MacPorts or Fink installed.
Software installed with other package managers causes known problems for
Homebrew. If a formula fails to build, uninstall MacPorts/Fink and try again.
Error: imagemagick-6.8.0-10 already installed
➜ applyco git:(master) ✗ apt-get install libmagick9-dev
zsh: command not found: apt-get
I have tried:
Installing Xcode with command line tools
Reinstalling homebrew
Clearing out all my repo's gems (including Gemfile.lock) and running bundle install
Reinstalling the bundler gem
Reinstalling ImageMagick
Nothing, including answers elsewhere on SO, have been of any use. Can you point me in the right direction?
I had the same problem as you setting up my dev environment on Mountain Lion for RoR 3.2.11. Apparently the last version of RMagick (2.13.1 ) doesn't play nice compiling with the last version of ImageMagick (6.8.2-0). Disabling openmp and building from source worked like, ahem.. Magick.
brew uninstall imagemagick
brew install imagemagick --disable-openmp --build-from-source
gem install rmagick
I didn't need to edit the brew formula described in http://blog.paulopoiati.com/2013/01/28/installing-rmagick-in-mac-os-x-mountain-lion-with-homebrew/, but that would be the next step to try.
I am going through the same issue here...
But one difference, maybe your homebrew its linked to another version of Imagemagick.
So even though imagemagick-6.8.0-10 is installed is not being found.
Try something like
brew unlink imagemagick
then brew link imagemagick
and see what happens.
This fixed my problem
http://robots.thoughtbot.com/post/27985816073/the-hitchhikers-guide-to-riding-a-mountain-lion
It may be a permissions issue try running
sudo chown -R `whoami` /usr/local
and then try again.
I had the same issue while trying to use Paperclip with Rails 3 for the first time.
Just to sum up previous answers, what worked for me was the following:
sudo chown -R `whoami` /usr/local
brew link --overwrite imagemagick
Thanks!

SSLv2 error with rails 3 on ubuntu 12

I m using ruby 1.9.2. Whenever i run bundle install, i get the following error.
bundle install
Fetching gem metadata from https://rubygems.org/.Unfortunately, a fatal error has occurred. Please see the Bundler
troubleshooting documentation at http://bit.ly/bundler-issues. Thanks!
/home/prasad/.rvm/rubies/ruby-1.9.2-p320/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require': /home/prasad/.rvm/rubies/ruby-1.9.2-p320/lib/ruby/site_ruby/1.9.1/i686-linux/openssl.so: undefined symbol: SSLv2_method - /home/prasad/.rvm/rubies/ruby-1.9.2- p320/lib/ruby/site_ruby/1.9.1/i686-linux/openssl.so (LoadError)
from /home/prasad/.rvm/rubies/ruby-1.9.2-p320/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from /home/prasad/.rvm/rubies/ruby-1.9.2-p320/lib/ruby/site_ruby/1.9.1/openssl.rb:17:in `<top (required)>'
from /home/prasad/.rvm/rubies/ruby-1.9.2-p320/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from /home/prasad/.rvm/rubies/ruby-1.9.2-p320/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from /home/prasad/.rvm/rubies/ruby-1.9.2-p320/lib/ruby/1.9.1/net/https.rb:92:in `<top (required)>'
....
The things i tried to solve are
1) steps in answer at undefined symbol: SSLv2_method when running bundle install
2) steps by bob at https://groups.google.com/forum/?fromgroups=#!topic/hobousers/80wBJcS0IZk though the system had no x86_64-linux-gnu folder
3) steps in this blog http://awolf.ru/rails-on-ubuntu-with-rvm/
i cant understand why one of my machine works fine(upgraded from ubuntu 11.10 to 12.04)
while the other gives a problem(freshly installed ubuntu 12.04)
UPDATE:
the openssl version used by rvm on the working machine is 0.9.8 while the other one has 1.0.1. Some googling resulted that the 1.0.0 and 1.0.1 doent support the SSLv2 whereas it was supported by 0.9.8.
any fix for the above prob would be much appreciated.
Some distributions doesn't support SSLv2 due to security flaws. Make sure, you've removed any previous versions of RVM:
sudo apt-get --purge remove ruby-rvm
sudo rm -rf /usr/share/ruby-rvm /etc/rvmrc /etc/profile.d/rvm.sh
Install RVM:
\curl -L https://get.rvm.io |
bash -s stable --ruby --autolibs=enable --auto-dotfiles

bundle install problem: mysql.h is missing

in my mac OSX 10.6 32 bit, I can install mysql2 gem quite easily, but not in mini mac 10.6 64bit server.
I have installed MySQL 5.5.11 in troublesome server, while in my home mac MySQL 5.5.0.m2
Somehow when I run bundle install, in server it tries to install mysql2.0.3.2 while in home mysql2.0.2.6
Please don't tell me to
env ARCHFLAGS="-arch x86_64" sudo gem install mysql2 --version '= 0.2.6' -- --with-mysql-config=/usr/local/mysql/bin/mysql_config
I tried that, doesn't work.
Included /usr/local/mysql/bin in $PATH does not help as well.
Error code:
Installing mysql2 (0.3.2) with native extensions /Users/administrator/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:533:in `rescue in block in build_extensions': ERROR: Failed to build gem native extension. (Gem::Installer::ExtensionBuildError)
/Users/administrator/.rvm/rubies/ruby-1.9.2-p180/bin/ruby extconf.rb
checking for rb_thread_blocking_region()... yes
checking for mysql.h... no
checking for mysql/mysql.h... no
-----
mysql.h is missing. please check your installation of mysql and try again.
-----
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.
Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/Users/administrator/.rvm/rubies/ruby-1.9.2-p180/bin/ruby
--with-mysql-config
--without-mysql-config
Gem files will remain installed in /Users/administrator/.rvm/gems/ruby-1.9.2-p180/gems/mysql2-0.3.2 for inspection.
Results logged to /Users/administrator/.rvm/gems/ruby-1.9.2-p180/gems/mysql2-0.3.2/ext/mysql2/gem_make.out
from /Users/administrator/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:511:in `block in build_extensions'
from /Users/administrator/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:486:in `each'
from /Users/administrator/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:486:in `build_extensions'
from /Users/administrator/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:159:in `install'
from /Users/administrator/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/source.rb:96:in `install'
from /Users/administrator/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/installer.rb:55:in `block in run'
from /Users/administrator/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/spec_set.rb:12:in `block in each'
from /Users/administrator/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/spec_set.rb:12:in `each'
from /Users/administrator/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/spec_set.rb:12:in `each'
from /Users/administrator/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/installer.rb:44:in `run'
from /Users/administrator/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/installer.rb:8:in `install'
from /Users/administrator/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/cli.rb:225:in `install'
from /Users/administrator/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/vendor/thor/task.rb:22:in `run'
from /Users/administrator/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/vendor/thor/invocation.rb:118:in `invoke_task'
from /Users/administrator/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/vendor/thor.rb:246:in `dispatch'
from /Users/administrator/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/vendor/thor/base.rb:389:in `start'
from /Users/administrator/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/bin/bundle:13:in `<top (required)>'
from /Users/administrator/.rvm/gems/ruby-1.9.2-p180/bin/bundle:19:in `load'
from /Users/administrator/.rvm/gems/ruby-1.9.2-p180/bin/bundle:19:in `<main>'
I tried all the solutions posted here, but was not lucky. I reinstalled mysql with homebrew a couple of times and still no luck. Then I came across a blog post with a solution.
I edited the mysql_config file in /usr/local/Cellar/mysql/5.6.12/bin and removed
the W-compiler options
-Wno-null-conversion and
-Wno-unused-private-field
for cflags and cxxflags.
This solved the problem with gem install mysql2 and bundle install
Reference: http://www.randomactsofsentience.com/2013/05/gem-install-mysql2-missing-mysqlh-on-os.html
I did a bundle install on a redmine repo and got the same error message :
mysql.h is missing. please check your installation of mysql and try again.
Running Fedora 16 64 bits, all I did was install mysql-devel (development package) from the distro rpm and the problem was solved!
So I think you could just
yum install mysql-devel
or apt-get the missing devel package.
for people who didn't use brew to install mysql and use mysql 5.6 and higher:
according to this answer
you need to edit mysql_config which was placed in my case here: /usr/local/mysql-5.6.12-osx10.7-x86_64/bin
and change cflags and cxxflags to:
cflags="-I$pkgincludedir -Wall -Os -g -fno-strict-aliasing -DDBUG_OFF " #note: end space!
cxxflags="-I$pkgincludedir -Wall -Os -g -fno-strict-aliasing -DDBUG_OFF " #note: end space!
after this manipulations
$ gem install mysql2 -v '0.3.13'
goes flawlessly
Ok guys for me the solution was:
$ sudo brew install mysql
$ sudo env ARCHFLAGS="-arch i386" gem install mysql -- \
--with-mysql-dir=/usr/local/mysql --with-mysql-lib=/usr/local/mysql/lib \
--with-mysql-include=/usr/local/mysql/include
source: http://wonko.com/post/how-to-install-the-mysqlruby-gem-on-mac-os-x-leopard
OR :
$sudo env ARCHFLAGS="-arch x86_64" gem install mysql -- \
--with-mysql-dir=/usr/local/mysql --with-mysql-lib=/usr/local/mysql/lib \
--with-mysql-include=/usr/local/mysql/include
If your mysql version is 64Bits
After that i had a lot of problems because if i want to create the database:
$: bundle exec rake db:reset
i was receiving this error:
dyld: lazy symbol binding failed: Symbol not found: _mysql_init
Referenced from: /Users/workdreamer/Sites/cavortify/implementation/cavortify/mysql/ruby/1.8/gems/mysql-2.8.1/lib/mysql_api.bundle
Expected in: flat namespace
dyld: Symbol not found: _mysql_init
Referenced from: /Users/workdreamer/Sites/cavortify/implementation/cavortify/mysql/ruby/1.8/gems/mysql-2.8.1/lib/mysql_api.bundle
Expected in: flat namespace
The solution is: On your gemfile add: gem "ruby-mysql"
Ok, one day and a half to find the solution.
Have a nice day!
This method is for Rails 3.1.0 (and hopefully up) on 64 bit machine. I used on Ruby-1.9.2-p180.
This blog answered it: http://www.tatvartha.com/2010/10/installing-mysql-gem-with-bundler-on-snow-leopard/
Basically, the method above: $ sudo env ARCHFLAGS="-arch x86_64" gem install mysql -- --with-mysql-config=/usr/local/mysql/bin/mysql_config
may work, but without bundler.
To do it with bundler, first must run this on terminal:
bundle config build.mysql2 --with-mysql-config=/usr/local/mysql/bin/mysql_config
Note "mysql2" not "mysql" as shown in that blog.
That adds a config to ~/.bundle/config file
Then add this to ~/.bash_profile:
export ARCHFLAGS="-arch x86_64"
That is the same with telling bundler to run the command on top of this post.
The only way I could get this to work was to install the x64 version of mysql. I just used the .dmg located here http://dev.mysql.com/downloads/mysql/ and it worked like a charm. Wish I could get the 4 hours back it took to figure this out.
This worked for me on my Mac OSX Lion:
sudo env ARCHFLAGS="-I/usr/local/include/mysql/mysql -pipe -fPIC -D_P1003_1B_VISIBLE -DSIGNAL_WITH_VIO_CLOSE -DSIGNALS_DONT_BREAK_READ -DIGNORE_SIGHUP_SIGQUIT -DDONT_DECLARE_CXA_PURE_VIRTUAL" gem install mysql -- --with-mysql-dir=/usr/local/mysql --with-mysql-lib=/usr/local/lib/mysql/mysql --with-mysql-include=/usr/local/include/mysql/mysql --with-mysql-config=/usr/local/bin/mysql_config
This blog answered it.
My problem was the result of first installing MySql via the downloadable binary. It was originally installed at version 5.5.28. I then attempted to install via homebrew. Brew installed version 5.6.x. HOWEVER in the process of installing via homebrew, the symlink for /usr/local/mysql was still pointed to 5.5.28.
Update your symlink to whichever version was installed via homebrew.
ex: /usr/local/mysql -> /usr/local/Cellar/mysql/5.6.13/
This could be just part of the solution.
For mariadb:
sudo apt-get install libmariadbclient18 libmariadbclient-dev
Then
gem install mysql2
could be successfully installed.
Verify that gcc is installed. If it isn't, you will get that same error message.
You can check the results/log file it mentions for more clues as to the cause.
Posting this wherever I can--hopefully it will help someone and save them a lot of time.
I dug through 2 days worth of the internet and Stack Overflow, and it wasn't until I found this link and then starting working through this ticket for mysql2 that I actually resolved the issue.
With my setup (as explained in the ticket), the compiler switches of -Wno-null-conversion -Wno-unused-private-field would break and give me an error that wasn't exactly correct, which was:
mysql.h is missing. please check your installation of mysql and try again
For those on Fedora 21, and you already installed mysql-devel:
yum install redhat-rpm-config
solved the problem for me. see:
redhat docs
TL;DR:
sudo ln -s /usr/local/opt/mysql#5.6 /usr/local/mysql
I got stumped by this issue for almost 2 days and reinstalled xcode and mysql so many times.
I originally had mysql#5.6 installed using brew, but the bundle install command kept failing because it could not find a mysql installation. Error output below:
libmysqlclient is missing. You may need to 'brew install mysql' or 'port install mysql', and try again.
However, using #Kevin Boedigheimer's answer helped fixed the problem i.e. I linked the installed mysql#5.6 to /usr/local/mysql
sudo ln -s /usr/local/opt/mysql#5.6 /usr/local/mysql
N.B: In case your mysql directory is somewhere else, you can find it using:
find / -name 'mysql*5.6' 2&> /dev/null
# '2&> /dev/null' ensures you have just the output you need