Getting "pathname contains null byte" on build

Recently, we’ve been getting some strange errors during the Middleman build on our CI. For most files, we are seeing the error “pathname contains null byte”. The error does not happen on local builds and nothing has changed in our CI lately. Of course, we are looking to see if the issue is on our end but meanwhile, thought I’d throw this out there to see if anyone has any ideas or if this has affected others.

Here’s the full stack trace from one error’ed page. You can see that the Spanish (es) version builds just fine but then the Portuguese version fails with above error.

== Request: /es/index.html
== Finishing Request: es/index.html (0.62s)
      create  build/es/index.html
== Request: /pt/index.html
       error  build/pt/index.html
pathname contains null byte
/usr/local/bundle/gems/middleman-core-4.3.4/lib/middleman-core/util/paths.rb:191:in `initialize'
/usr/local/bundle/gems/middleman-core-4.3.4/lib/middleman-core/util/paths.rb:191:in `Pathname'
/usr/local/bundle/gems/middleman-core-4.3.4/lib/middleman-core/util/paths.rb:191:in `url_for'
/usr/local/bundle/gems/middleman-core-4.3.4/lib/middleman-core/util/paths.rb:119:in `asset_url'
/usr/local/bundle/gems/middleman-core-4.3.4/lib/middleman-core/util/paths.rb:96:in `asset_path'
/usr/local/bundle/gems/middleman-core-4.3.4/lib/middleman-core/core_extensions/default_helpers.rb:203:in `asset_path'
/usr/local/bundle/gems/middleman-core-4.3.4/lib/middleman-core/core_extensions/default_helpers.rb:140:in `block in javascript_include_tag'
/usr/local/bundle/gems/middleman-core-4.3.4/lib/middleman-core/core_extensions/default_helpers.rb:138:in `each'
/usr/local/bundle/gems/middleman-core-4.3.4/lib/middleman-core/core_extensions/default_helpers.rb:138:in `reduce'
/usr/local/bundle/gems/middleman-core-4.3.4/lib/middleman-core/core_extensions/default_helpers.rb:138:in `javascript_include_tag'
layouts/layout.erb:4:in `block in singleton class'
layouts/layout.erb:-8:in `instance_eval'
layouts/layout.erb:-8:in `singleton class'
layouts/layout.erb:-11:in `__tilt_47323731138900'
/usr/local/bundle/gems/tilt-2.0.9/lib/tilt/template.rb:170:in `call'
/usr/local/bundle/gems/tilt-2.0.9/lib/tilt/template.rb:170:in `evaluate'
/usr/local/bundle/gems/tilt-2.0.9/lib/tilt/template.rb:109:in `render'
/usr/local/bundle/gems/middleman-core-4.3.4/lib/middleman-core/file_renderer.rb:79:in `render'
/usr/local/bundle/gems/contracts-0.13.0/lib/contracts/method_reference.rb:43:in `send_to'
/usr/local/bundle/gems/contracts-0.13.0/lib/contracts/call_with.rb:76:in `call_with'
/usr/local/bundle/gems/contracts-0.13.0/lib/contracts/method_handler.rb:138:in `block in redefine_method'
/usr/local/bundle/gems/middleman-core-4.3.4/lib/middleman-core/template_renderer.rb:157:in `block in render'
/usr/local/bundle/gems/activesupport-5.0.7.2/lib/active_support/notifications.rb:166:in `instrument'
/usr/local/bundle/gems/middleman-core-4.3.4/lib/middleman-core/util.rb:21:in `instrument'
/usr/local/bundle/gems/middleman-core-4.3.4/lib/middleman-core/template_renderer.rb:156:in `render'
/usr/local/bundle/gems/contracts-0.13.0/lib/contracts/method_reference.rb:43:in `send_to'
/usr/local/bundle/gems/contracts-0.13.0/lib/contracts/call_with.rb:76:in `call_with'
/usr/local/bundle/gems/contracts-0.13.0/lib/contracts/method_handler.rb:138:in `block in redefine_method'
/usr/local/bundle/gems/middleman-core-4.3.4/lib/middleman-core/sitemap/resource.rb:154:in `render'
/usr/local/bundle/gems/contracts-0.13.0/lib/contracts/method_reference.rb:43:in `send_to'
/usr/local/bundle/gems/contracts-0.13.0/lib/contracts/call_with.rb:76:in `call_with'
/usr/local/bundle/gems/contracts-0.13.0/lib/contracts/method_handler.rb:138:in `block in redefine_method'
/usr/local/bundle/gems/middleman-core-4.3.4/lib/middleman-core/rack.rb:112:in `process_request'
/usr/local/bundle/gems/middleman-core-4.3.4/lib/middleman-core/rack.rb:66:in `block in call'
/usr/local/bundle/gems/middleman-core-4.3.4/lib/middleman-core/rack.rb:65:in `catch'
/usr/local/bundle/gems/middleman-core-4.3.4/lib/middleman-core/rack.rb:65:in `call'
/usr/local/bundle/gems/rack-2.0.7/lib/rack/urlmap.rb:68:in `block in call'
/usr/local/bundle/gems/rack-2.0.7/lib/rack/urlmap.rb:53:in `each'
/usr/local/bundle/gems/rack-2.0.7/lib/rack/urlmap.rb:53:in `call'
/usr/local/bundle/gems/htmlcompressor-0.2.0/lib/htmlcompressor/rack.rb:36:in `call'
/usr/local/bundle/gems/middleman-core-4.3.4/lib/middleman-core/core_extensions/inline_url_rewriter.rb:74:in `call'
/usr/local/bundle/gems/rack-2.0.7/lib/rack/head.rb:12:in `call'
/usr/local/bundle/gems/rack-2.0.7/lib/rack/lint.rb:49:in `_call'
/usr/local/bundle/gems/rack-2.0.7/lib/rack/lint.rb:37:in `call'
/usr/local/bundle/gems/rack-2.0.7/lib/rack/builder.rb:153:in `call'
/usr/local/bundle/gems/rack-2.0.7/lib/rack/mock.rb:74:in `request'
/usr/local/bundle/gems/rack-2.0.7/lib/rack/mock.rb:56:in `get'
/usr/local/bundle/gems/middleman-core-4.3.4/lib/middleman-core/builder.rb:232:in `block in output_resource'
/usr/local/bundle/gems/activesupport-5.0.7.2/lib/active_support/notifications.rb:166:in `instrument'
/usr/local/bundle/gems/middleman-core-4.3.4/lib/middleman-core/util.rb:21:in `instrument'
/usr/local/bundle/gems/middleman-core-4.3.4/lib/middleman-core/builder.rb:225:in `output_resource'
/usr/local/bundle/gems/contracts-0.13.0/lib/contracts/method_reference.rb:43:in `send_to'
/usr/local/bundle/gems/contracts-0.13.0/lib/contracts/call_with.rb:76:in `call_with'
/usr/local/bundle/gems/contracts-0.13.0/lib/contracts/method_handler.rb:138:in `block in redefine_method'
/usr/local/bundle/gems/parallel-1.17.0/lib/parallel.rb:504:in `call_with_index'
/usr/local/bundle/gems/parallel-1.17.0/lib/parallel.rb:471:in `process_incoming_jobs'
/usr/local/bundle/gems/parallel-1.17.0/lib/parallel.rb:453:in `block in worker'
/usr/local/bundle/gems/parallel-1.17.0/lib/parallel.rb:444:in `fork'
/usr/local/bundle/gems/parallel-1.17.0/lib/parallel.rb:444:in `worker'
/usr/local/bundle/gems/parallel-1.17.0/lib/parallel.rb:435:in `block in create_workers'
/usr/local/bundle/gems/parallel-1.17.0/lib/parallel.rb:434:in `each'
/usr/local/bundle/gems/parallel-1.17.0/lib/parallel.rb:434:in `each_with_index'
/usr/local/bundle/gems/parallel-1.17.0/lib/parallel.rb:434:in `create_workers'
/usr/local/bundle/gems/parallel-1.17.0/lib/parallel.rb:373:in `work_in_processes'
/usr/local/bundle/gems/parallel-1.17.0/lib/parallel.rb:277:in `map'
/usr/local/bundle/gems/middleman-core-4.3.4/lib/middleman-core/builder.rb:137:in `output_resources'
/usr/local/bundle/gems/contracts-0.13.0/lib/contracts/method_reference.rb:43:in `send_to'
/usr/local/bundle/gems/contracts-0.13.0/lib/contracts/call_with.rb:76:in `call_with'
/usr/local/bundle/gems/contracts-0.13.0/lib/contracts/method_handler.rb:138:in `block in redefine_method'
/usr/local/bundle/gems/middleman-core-4.3.4/lib/middleman-core/builder.rb:131:in `output_files'
/usr/local/bundle/gems/contracts-0.13.0/lib/contracts/method_reference.rb:43:in `send_to'
/usr/local/bundle/gems/contracts-0.13.0/lib/contracts/call_with.rb:76:in `call_with'
/usr/local/bundle/gems/contracts-0.13.0/lib/contracts/method_handler.rb:138:in `block in redefine_method'
/usr/local/bundle/gems/middleman-core-4.3.4/lib/middleman-core/builder.rb:71:in `block in run!'
/usr/local/bundle/gems/activesupport-5.0.7.2/lib/active_support/notifications.rb:166:in `instrument'
/usr/local/bundle/gems/middleman-core-4.3.4/lib/middleman-core/util.rb:21:in `instrument'
/usr/local/bundle/gems/middleman-core-4.3.4/lib/middleman-core/builder.rb:70:in `run!'
/usr/local/bundle/gems/contracts-0.13.0/lib/contracts/method_reference.rb:43:in `send_to'
/usr/local/bundle/gems/contracts-0.13.0/lib/contracts/call_with.rb:76:in `call_with'
/usr/local/bundle/gems/contracts-0.13.0/lib/contracts/method_handler.rb:138:in `block in redefine_method'
/usr/local/bundle/gems/middleman-cli-4.3.4/lib/middleman-cli/build.rb:84:in `block in build'
/usr/local/bundle/gems/activesupport-5.0.7.2/lib/active_support/notifications.rb:166:in `instrument'
/usr/local/bundle/gems/middleman-core-4.3.4/lib/middleman-core/util.rb:21:in `instrument'
/usr/local/bundle/gems/middleman-cli-4.3.4/lib/middleman-cli/build.rb:83:in `build'
/usr/local/bundle/gems/thor-0.20.3/lib/thor/command.rb:27:in `run'
/usr/local/bundle/gems/thor-0.20.3/lib/thor/invocation.rb:126:in `invoke_command'
/usr/local/bundle/gems/thor-0.20.3/lib/thor/invocation.rb:133:in `block in invoke_all'
/usr/local/bundle/gems/thor-0.20.3/lib/thor/invocation.rb:133:in `each'
/usr/local/bundle/gems/thor-0.20.3/lib/thor/invocation.rb:133:in `map'
/usr/local/bundle/gems/thor-0.20.3/lib/thor/invocation.rb:133:in `invoke_all'
/usr/local/bundle/gems/thor-0.20.3/lib/thor/group.rb:232:in `dispatch'
/usr/local/bundle/gems/thor-0.20.3/lib/thor/invocation.rb:115:in `invoke'
/usr/local/bundle/gems/thor-0.20.3/lib/thor.rb:40:in `block in register'
/usr/local/bundle/gems/thor-0.20.3/lib/thor/command.rb:27:in `run'
/usr/local/bundle/gems/thor-0.20.3/lib/thor/invocation.rb:126:in `invoke_command'
/usr/local/bundle/gems/thor-0.20.3/lib/thor.rb:387:in `dispatch'
/usr/local/bundle/gems/thor-0.20.3/lib/thor/base.rb:466:in `start'
/usr/local/bundle/gems/middleman-cli-4.3.4/bin/middleman:70:in `<top (required)>'
/usr/local/bundle/bin/middleman:23:in `load'
/usr/local/bundle/bin/middleman:23:in `<top (required)>'
/usr/local/lib/ruby/2.6.0/bundler/cli/exec.rb:74:in `load'
/usr/local/lib/ruby/2.6.0/bundler/cli/exec.rb:74:in `kernel_load'
/usr/local/lib/ruby/2.6.0/bundler/cli/exec.rb:28:in `run'
/usr/local/lib/ruby/2.6.0/bundler/cli.rb:463:in `exec'
/usr/local/lib/ruby/2.6.0/bundler/vendor/thor/lib/thor/command.rb:27:in `run'
/usr/local/lib/ruby/2.6.0/bundler/vendor/thor/lib/thor/invocation.rb:126:in `invoke_command'
/usr/local/lib/ruby/2.6.0/bundler/vendor/thor/lib/thor.rb:387:in `dispatch'
/usr/local/lib/ruby/2.6.0/bundler/cli.rb:27:in `dispatch'
/usr/local/lib/ruby/2.6.0/bundler/vendor/thor/lib/thor/base.rb:466:in `start'
/usr/local/lib/ruby/2.6.0/bundler/cli.rb:18:in `start'
/usr/local/lib/ruby/gems/2.6.0/gems/bundler-1.17.2/exe/bundle:30:in `block in <top (required)>'
/usr/local/lib/ruby/2.6.0/bundler/friendly_errors.rb:124:in `with_friendly_errors'
/usr/local/lib/ruby/gems/2.6.0/gems/bundler-1.17.2/exe/bundle:22:in `<top (required)>'
/usr/local/bin/bundle:23:in `load'
/usr/local/bin/bundle:23:in `<main>'

Hello @tai.nguyen, thanks for using Community :slight_smile:

Just doing a quick search could be a missing or broken symlink somewhere?

But otherwise I don’t know! If you are stuck consider giving me access to your repo so that I can try replicating myself.