ruby on rails - Carrierwave Upload with Amazon S3 - 403 Forbidden Error -

i attempting use carrierwave amazon s3 in rails app, , keep getting error

"excon::errors::forbidden (expected(200) <=> actual(403 forbidden)."   <error><code>signaturedoesnotmatch</code><message>the request signature calculated not match signature provided. check key , signing method. 

i receive warning

"[warning] fog: specified s3 bucket name() not valid dns name, negatively impact performance.  details see: http://docs.amazonwebservices.com/amazons3/latest/dev/bucketrestrictions.html"   

config/initializers/carrierwave.rb:

carrierwave.configure |config|   config.fog_credentials = {     provider: 'aws',                           aws_access_key_id: env["aws_access_key_id"],     aws_secret_access_key: env["aws_access_key"]   }   config.fog_directory = env["aws_bucket"]                 end 

my bucket name "buildinprogress"

i've double checked access key id , access key correct.

how can fix error??

it problem fog/excom kept throwing random errors me too.

my fix remove gem 'fog' , replace gem 'carrierwave-aws' instead.

then, in *_uploader.rb change

storage :fog ---> storage :aws 

and update carrierwave.rb file ex.:

  carrierwave.configure |config|     config.storage    =  :aws                  # required     config.aws_bucket =  env['s3_bucket']      # required     config.aws_acl    =  :public_read      config.aws_credentials = {       access_key_id:      env['s3_key'],       # required       secret_access_key:  env['s3_secret']     # required     }      config.aws_attributes = {                               'cache-control'=>"max-age=#{365.day.to_i}",                               'expires'=>'tue, 29 dec 2015 23:23:23 gmt'                             }   end 

for more info check out carrierwave-aws github page