# Prawn gem error **URL:** \ **Category:** Community Edition\ **Created:** [September 7, 2016, 9:52am UTC](https://discuss.dradis.com/t/prawn-gem-error/357 "2016-09-07T09:52:54Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![trasla](https://avatars.discourse-cdn.com/v4/letter/t/35a633/32.png) [@trasla](https://discuss.dradis.com/u/trasla)\ **Post date:** [September 7, 2016, 9:52am UTC](https://discuss.dradis.com/t/prawn-gem-error/357/1 "2016-09-07T09:52:55Z")
Hi, I want to use Dradis to CentOS 7.0 but I’ve an error to prawn gem version. `Gem list : Prawn 2.1.0` I’ve this issue with setup bin/setup: ``` == Installing dependencies == The git source git://github.com/dradis/dradis-projects.git is not yet checked out. Please run `bundle install` before trying to start your application Fetching git://github.com/dradis/dradis-projects.git Fetching git://github.com/dradis/dradis-theme_snowcrash.git Fetching git://github.com/dradis/dradis-brakeman.git Fetching git://github.com/dradis/dradis-metasploit.git Resolving dependencies... Some gems seem to be missing from your vendor/cache directory. Bundler could not find compatible versions for gem "prawn": In Gemfile: dradis-pdf_export was resolved to 3.2.1, which depends on prawn (~> 0.15.0) Could not find gem 'prawn (~> 0.15.0)', which is required by gem 'dradis-pdf_export', in any of the sources. ``` Do you have a solution ? Thanks ---
**Author:** ![rachkor](https://yyz1.discourse-cdn.com/flex035/user_avatar/discuss.dradis.com/rachkor/32/51_2.png) [@rachkor](https://discuss.dradis.com/u/rachkor)\ **Post date:** [September 7, 2016, 1:21pm UTC](https://discuss.dradis.com/t/prawn-gem-error/357/2 "2016-09-07T13:21:27Z")
Hi @trasla, Are you using the instructions here? [http://dradisframework.org/documentation/install\_git.html](http://dradisframework.org/documentation/install_git.html) Your error mentions: > Please run `bundle install` before trying to start your application Can you walk through the install steps in the guide linked above? Make sure that the `bundle install` command (#3) succeeds before running `./bin/setup` (#4). Check out the troubleshooting steps at the bottom of the guide as well if you run into any roadblocks. ---
**Author:** ![trasla](https://avatars.discourse-cdn.com/v4/letter/t/35a633/32.png) [@trasla](https://discuss.dradis.com/u/trasla)\ **Post date:** [September 8, 2016, 7:03am UTC](https://discuss.dradis.com/t/prawn-gem-error/357/3 "2016-09-08T07:03:43Z")
> [@trasla](#): > > Bundler could not find compatible versions for gem “prawn”: > In Gemfile: > dradis-pdf\_export was resolved to 3.2.1, which depends on > prawn (~\> 0.15.0) Hi @rachkor, Bundle install generate the same error message: ``` Bundler could not find compatible versions for gem "prawn": In Gemfile: dradis-pdf_export was resolved to 3.2.1, which depends on prawn (~> 0.15.0) ``` Do you have a solution for this gem ? Thanks ---
**Author:** ![rachkor](https://yyz1.discourse-cdn.com/flex035/user_avatar/discuss.dradis.com/rachkor/32/51_2.png) [@rachkor](https://discuss.dradis.com/u/rachkor)\ **Post date:** [September 8, 2016, 5:01pm UTC](https://discuss.dradis.com/t/prawn-gem-error/357/5 "2016-09-08T17:01:22Z")
@trasla, I did some digging on this question, are you working on a brand new install from git or with an older version of Dradis? It looks like you may be working with the code from the [legacy repo](https://github.com/dradis/dradis-legacy) instead of the latest code here: [GitHub - dradis/dradis-ce: Dradis Framework: Colllaboration and reporting for IT Security teams](https://github.com/dradis/dradis-ce) Can you confirm that you’ve cloned the `dradis-ce` repo linked above on your local system? Then, `git pull` the latest changes from and try the steps in this guide again: [Installing Dradis from Git | Dradis Framework](http://dradisframework.org/documentation/install_git.html) ---
**Author:** ![trasla](https://avatars.discourse-cdn.com/v4/letter/t/35a633/32.png) [@trasla](https://discuss.dradis.com/u/trasla)\ **Post date:** [September 9, 2016, 8:54am UTC](https://discuss.dradis.com/t/prawn-gem-error/357/6 "2016-09-09T08:54:57Z")
@rachkor, I use this : [GitHub - dradis/dradis-legacy: This is a LEGACY repo head to](https://github.com/dradis/dradis-legacy#getting-started-git-release-recommended) With the dradis-ce repo, I have other errors: ./bin/setup ``` Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension. /usr/bin/ruby extconf.rb checking for ruby/thread.h... yes checking for rb_thread_call_without_gvl() in ruby/thread.h... yes checking for rb_thread_blocking_region()... yes checking for rb_wait_for_single_fd()... yes checking for rb_hash_dup()... yes checking for rb_intern3()... yes checking for mysql_query() in -lmysqlclient... no checking for main() in -lm... yes checking for mysql_query() in -lmysqlclient... no checking for main() in -lz... yes checking for mysql_query() in -lmysqlclient... no checking for main() in -lsocket... no checking for mysql_query() in -lmysqlclient... no checking for main() in -lnsl... yes checking for mysql_query() in -lmysqlclient... no checking for main() in -lmygcc... no checking for mysql_query() in -lmysqlclient... no ***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. ``` `An error occurred while installing mysql2 (0.3.18), and Bundler cannot continue. Make sure that `gem install mysql2 -v ‘0.3.18’` succeeds before bundling.` `Could not find dradis-calculator_cvss-3.0.1 in any of the sources` `Run `bundle install` to install missing gems.` Bundle install: ``` `Rubygems 2.0.14 is not threadsafe, so your gems will be installed one at a time. Upgrade to Rubygems 2.1.0 or higher to enable parallel gem installation. Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension. /usr/bin/ruby extconf.rb checking for ruby/thread.h... yes checking for rb_thread_call_without_gvl() in ruby/thread.h... yes checking for rb_thread_blocking_region()... yes checking for rb_wait_for_single_fd()... yes checking for rb_hash_dup()... yes checking for rb_intern3()... yes checking for mysql_query() in -lmysqlclient... no checking for main() in -lm... yes checking for mysql_query() in -lmysqlclient... no checking for main() in -lz... yes checking for mysql_query() in -lmysqlclient... no checking for main() in -lsocket... no checking for mysql_query() in -lmysqlclient... no checking for main() in -lnsl... yes checking for mysql_query() in -lmysqlclient... no checking for main() in -lmygcc... no checking for mysql_query() in -lmysqlclient... no ***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}/lib64 --with-make-prog --without-make-prog --srcdir=. --curdir --ruby=/usr/bin/ruby --with-mysql-dir --without-mysql-dir --with-mysql-include --without-mysql-include=${mysql-dir}/include --with-mysql-lib --without-mysql-lib=${mysql-dir}/ --with-mysql-config --without-mysql-config --with-mysql-dir --without-mysql-dir --with-mysql-include --without-mysql-include=${mysql-dir}/include --with-mysql-lib --without-mysql-lib=${mysql-dir}/ --with-mysqlclientlib --without-mysqlclientlib --with-mlib --without-mlib --with-mysqlclientlib --without-mysqlclientlib --with-zlib --without-zlib --with-mysqlclientlib --without-mysqlclientlib --with-socketlib --without-socketlib --with-mysqlclientlib --without-mysqlclientlib --with-nsllib --without-nsllib --with-mysqlclientlib --without-mysqlclientlib --with-mygcclib --without-mygcclib --with-mysqlclientlib --without-mysqlclientlib Gem files will remain installed in /home/admin/.gem/ruby/gems/mysql2-0.3.18 for inspection. Results logged to /home/admin/.gem/ruby/gems/mysql2-0.3.18/ext/mysql2/gem_make.out An error occurred while installing mysql2 (0.3.18), and Bundler cannot continue. Make sure that `gem install mysql2 -v '0.3.18'` succeeds before bundling.` ``` Others errors: ``` Using rspec-mocks 3.4.1 Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension. /usr/bin/ruby extconf.rb checking for ruby/thread.h... yes ***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. An error occurred while installing mysql2 (0.3.18), and Bundler cannot continue. Make sure that `gem install mysql2 -v '0.3.18'` succeeds before bundling. >> gem install mysql2 -v '0.3.18' Building native extensions. This could take a while... ERROR: Error installing mysql2: ERROR: Failed to build gem native extension. /usr/bin/ruby extconf.rb ``` EDIT: After installing MariaDB devel and Ruby 2.2.2 with centos-sclo-rh repo and bundle install, I have this error: ``` Rubygems 2.0.14 is not threadsafe, so your gems will be installed one at a time. Upgrade to Rubygems 2.1.0 or higher to enable parallel gem installation. == Preparing database == rake aborted! LoadError: cannot load such file -- mysql2/mysql2 /usr/local/share/gems/gems/mysql2-0.3.18/lib/mysql2.rb:31:in `require' /usr/local/share/gems/gems/mysql2-0.3.18/lib/mysql2.rb:31:in `' /usr/local/share/gems/gems/bundler-1.13.0/lib/bundler/runtime.rb:91:in `require' /usr/local/share/gems/gems/bundler-1.13.0/lib/bundler/runtime.rb:91:in `block (2 levels) in require' /usr/local/share/gems/gems/bundler-1.13.0/lib/bundler/runtime.rb:86:in `each' /usr/local/share/gems/gems/bundler-1.13.0/lib/bundler/runtime.rb:86:in `block in require' /usr/local/share/gems/gems/bundler-1.13.0/lib/bundler/runtime.rb:75:in `each' /usr/local/share/gems/gems/bundler-1.13.0/lib/bundler/runtime.rb:75:in `require' /usr/local/share/gems/gems/bundler-1.13.0/lib/bundler.rb:106:in `require' /data/dradis-ce/config/application.rb:12:in `' /data/dradis-ce/Rakefile:4:in `require' /data/dradis-ce/Rakefile:4:in `' (See full trace by running task with --trace) ``` Now I use ./bin/setup to resolv one part errors. But I have yet database errors: ``` ./bin/setup == Cloning core Dradis add-ons at /data/dradis-ce/.. == fatal: destination path 'dradis-calculator_cvss' already exists and is not an empty directory. fatal: destination path 'dradis-calculator_dread' already exists and is not an empty directory. fatal: destination path 'dradis-csv' already exists and is not an empty directory. fatal: destination path 'dradis-html_export' already exists and is not an empty directory. fatal: destination path 'dradis-mediawiki' already exists and is not an empty directory. fatal: destination path 'dradis-vulndb' already exists and is not an empty directory. fatal: destination path 'dradis-acunetix' already exists and is not an empty directory. fatal: destination path 'dradis-brakeman' already exists and is not an empty directory. fatal: destination path 'dradis-burp' already exists and is not an empty directory. fatal: destination path 'dradis-metasploit' already exists and is not an empty directory. fatal: destination path 'dradis-nessus' already exists and is not an empty directory. fatal: destination path 'dradis-nexpose' already exists and is not an empty directory. fatal: destination path 'dradis-nikto' already exists and is not an empty directory. fatal: destination path 'dradis-nmap' already exists and is not an empty directory. fatal: destination path 'dradis-ntospider' already exists and is not an empty directory. fatal: destination path 'dradis-openvas' already exists and is not an empty directory. fatal: destination path 'dradis-qualys' already exists and is not an empty directory. fatal: destination path 'dradis-plugins' already exists and is not an empty directory. fatal: destination path 'dradis-projects' already exists and is not an empty directory. == Installing dependencies == The Gemfile's dependencies are satisfied == Copying sample files == == Preparing database == rake aborted! LoadError: cannot load such file -- mysql2/mysql2 /usr/local/share/gems/gems/mysql2-0.3.18/lib/mysql2.rb:31:in `require' /usr/local/share/gems/gems/mysql2-0.3.18/lib/mysql2.rb:31:in `' /usr/local/share/gems/gems/bundler-1.13.0/lib/bundler/runtime.rb:91:in `require' /usr/local/share/gems/gems/bundler-1.13.0/lib/bundler/runtime.rb:91:in `block (2 levels) in require' /usr/local/share/gems/gems/bundler-1.13.0/lib/bundler/runtime.rb:86:in `each' /usr/local/share/gems/gems/bundler-1.13.0/lib/bundler/runtime.rb:86:in `block in require' /usr/local/share/gems/gems/bundler-1.13.0/lib/bundler/runtime.rb:75:in `each' /usr/local/share/gems/gems/bundler-1.13.0/lib/bundler/runtime.rb:75:in `require' /usr/local/share/gems/gems/bundler-1.13.0/lib/bundler.rb:106:in `require' /data/dradis-ce/config/application.rb:12:in `' /data/dradis-ce/Rakefile:4:in `require' /data/dradis-ce/Rakefile:4:in `' (See full trace by running task with --trace) == Removing old logs and tempfiles == == Restarting application server == ``` ---
**Author:** ![rachkor](https://yyz1.discourse-cdn.com/flex035/user_avatar/discuss.dradis.com/rachkor/32/51_2.png) [@rachkor](https://discuss.dradis.com/u/rachkor)\ **Post date:** [September 12, 2016, 1:34pm UTC](https://discuss.dradis.com/t/prawn-gem-error/357/7 "2016-09-12T13:34:10Z")
> [@trasla](#): > > An error occurred while installing mysql2 (0.3.18), and Bundler cannot continue.Make sure thatgem install mysql2 -v '0.3.18’succeeds before bundling. It looks like all of the error messages are referencing the `mysql` gem which likely means [a system-specific dependency issue](http://dradisframework.org/documentation/install_git.html#troubleshooting). Have you searched StackOverflow and other forums for details on installing this gem on your OS? I found this which might be a good place to start: [mysql - Errors Installing mysql2 gem via the Bundler - Stack Overflow](http://stackoverflow.com/questions/3754662/errors-installing-mysql2-gem-via-the-bundler) ---
**Author:** ![etd](https://yyz1.discourse-cdn.com/flex035/user_avatar/discuss.dradis.com/etd/32/5_2.png) [@etd](https://discuss.dradis.com/u/etd)\ **Post date:** [September 15, 2016, 11:46pm UTC](https://discuss.dradis.com/t/prawn-gem-error/357/8 "2016-09-15T23:46:22Z")
Also, @trasla, what version of Ruby are you using (`ruby -v`)? ---
**Author:** ![trasla](https://avatars.discourse-cdn.com/v4/letter/t/35a633/32.png) [@trasla](https://discuss.dradis.com/u/trasla)\ **Post date:** [September 16, 2016, 2:09pm UTC](https://discuss.dradis.com/t/prawn-gem-error/357/9 "2016-09-16T14:09:52Z")
Hi @rachkor, Yes I try it without results. @etd, Hi, The version is ruby 2.0.0p598 (2014-11-13) [x86\_64-linux] Thanks EDIT : gem install mysql2 -v ‘0.3.11’ ERROR: Error installing mysql2: invalid gem: package is corrupt, exception while verifying: undefined method `path2class’ for #Psych::ClassLoader:0x000000021de9b0 (NoMethodError) in /usr/local/share/gems/cache/mysql2-0.3.11.gem ---
**Author:** ![etd](https://yyz1.discourse-cdn.com/flex035/user_avatar/discuss.dradis.com/etd/32/5_2.png) [@etd](https://discuss.dradis.com/u/etd)\ **Post date:** [September 22, 2016, 8:19am UTC](https://discuss.dradis.com/t/prawn-gem-error/357/10 "2016-09-22T08:19:07Z")
> [@trasla](#): > > ERROR: Error installing mysql2: > invalid gem: package is corrupt, exception while verifying: undefined method `path2class’ for # It seems that the downloaded .gem file is corrupt for some reason, can you just delete it from the cache and try redownloading again? `/usr/local/share/gems/cache/mysql2-0.3.11.gem` Also, the latest Dradis repo is using version `0.3.18` of the gem: >