Rdkit error

[HamzaShaikh17]

I am running example code snippet that throws an error

(base) hamza@mac Documents % ruby chem.rb
Traceback (most recent call last):
2: from chem.rb:1:in <main>' 1: from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in require'
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in require': cannot load such file -- chem_scanner (LoadError) 8: from chem.rb:1:in

'
7: from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:34:in require' 6: from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:130:in rescue in require'
5: from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:130:in require' 4: from /Library/Ruby/Gems/2.6.0/gems/chem_scanner-0.1.3/lib/chem_scanner.rb:2:in <top (required)>'
3: from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in require' 2: from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in require'
1: from /Library/Ruby/Gems/2.6.0/gems/rdkit_chem-2019.03.3.1/lib/rdkit_chem.rb:1:in <top (required)>' /Library/Ruby/Gems/2.6.0/gems/rdkit_chem-2019.03.3.1/lib/rdkit_chem.rb:1:in require_relative': cannot load such file -- /Library/Ruby/Gems/2.6.0/gems/rdkit_chem-2019.03.3.1/rdkit/Code/lib/RDKitChem (LoadError)

After getting this error I have tried to install dependent rdkit library by following command:

gem install rdkit_chem

But it still throwing the same error

is there any solution?

[CamAnNguyen]

Hi @hs1s, the chem_scanner gem is using rdkit_chem gem, therefore it requires dependencies of rdkit_chem. Could you please install the required package listed here and reinstall the gem?