Rails 不会安装

Question

To start I'm pretty new at rails which I'm sure this question will show. I was about to follow the steps on gorails.com to setup a local server. I also use codeanywhere for when I have internet access. When I try to install (rails new myapp) rails I keep getting the following error from my terminal command

extconf failed, exit code 1

Gem files will remain installed in
/var/folders/0d/yx9wdh954jjbn_pnn5nbm5540000gn/T/bundler20190310-64475-5t7xkksqlite3-1.4.0/gems/sqlite3-1.4.0
for inspection.
Results logged to
/var/folders/0d/yx9wdh954jjbn_pnn5nbm5540000gn/T/bundler20190310-64475-5t7xkksqlite3-1.4.0/extensions/universal-darwin-17/2.3.0/sqlite3-1.4.0/gem_make.out

An error occurred while installing sqlite3 (1.4.0), and Bundler cannot
continue.
Make sure that `gem install sqlite3 -v '1.4.0' --source 'https://rubygems.org/'`
succeeds before bundling.

In Gemfile:
  sqlite3
         run  bundle exec spring binstub --all
Could not find gem 'uglifier (>= 1.3.0)' in any of the gem sources listed in your Gemfile.
Run `bundle install` to install missing gems."

Any Help on the matter would be greatly appreciated. Thanks in advance.

Answer 1

Please edit the file in your ruby rails project named Gemfile and change following

gem  'sqlite3'

to

gem 'sqlite3', '~> 1.3.11'

Now run following command to install Gem

bundle install

now run your rails project

rails s

Answer 2

I think you are missing sqlite3. Run the command

sudo apt-get install -y sqlite3 libsqlite3-dev

Then modify gemfile to

gem 'sqlite3', '~> 1.3.11'

Then run

bundle install

In rails some packages needs to be installed in your local ,after which they can be included in your gemfile. The same applies for mysql and psql .