Inconsistent compiler error

[amyipdev]

About ~15% of the time, the Sass compiler crashes with the following error:

sass scss/custom.scss:assets/css/custom_bootstrap.css 
TypeError: String can't be coerced into Integer
  Use --trace for backtrace.

The other ~85%, it works just fine. Not sure what could be causing this, it's honestly very random.

[nex3]

That does look like a bug, but it's not something I can do anything about without more information. What gets printed if you pass --trace? Can you provide a minimal project that reproduces this error?

[amyipdev]

i could try and get it replicated, probably just gonna have to spam make.

this happened when working on https://github.com/amyipdev/ssvp

[amyipdev]

tried about 50 times, not getting reproduction now...

[amyipdev]

@nex3

/usr/share/gems/gems/sass-3.7.4/lib/sass/script/value/number.rb:409:in `-': nil can't be coerced into Integer (TypeError)

      (num1 - num2).abs < epsilon
              ^^^^
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/script/value/number.rb:409:in `basically_equal?'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/script/value/number.rb:403:in `basically_equal?'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/script/value/number.rb:226:in `eql?'
        from /usr/share/ruby/set.rb:404:in `include?'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/script/tree/map_literal.rb:54:in `block in _perform'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/script/tree/map_literal.rb:52:in `map'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/script/tree/map_literal.rb:52:in `_perform'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/script/tree/node.rb:50:in `perform'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/script/tree/map_literal.rb:53:in `block in _perform'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/script/tree/map_literal.rb:52:in `map'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/script/tree/map_literal.rb:52:in `_perform'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/script/tree/node.rb:50:in `perform'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/script/tree/map_literal.rb:53:in `block in _perform'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/script/tree/map_literal.rb:52:in `map'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/script/tree/map_literal.rb:52:in `_perform'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/script/tree/node.rb:50:in `perform'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/script/tree/funcall.rb:182:in `perform_arg'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/script/tree/funcall.rb:129:in `block in _perform'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/script/tree/funcall.rb:129:in `each'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/script/tree/funcall.rb:129:in `each_with_index'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/script/tree/funcall.rb:129:in `each'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/script/tree/funcall.rb:129:in `map'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/script/tree/funcall.rb:129:in `_perform'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/script/tree/node.rb:50:in `perform'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/tree/visitors/perform.rb:478:in `visit_variable'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/tree/visitors/base.rb:36:in `visit'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/tree/visitors/perform.rb:158:in `block in visit'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/stack.rb:79:in `block in with_base'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/stack.rb:135:in `with_frame'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/stack.rb:79:in `with_base'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/tree/visitors/perform.rb:158:in `visit'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/tree/visitors/perform.rb:325:in `block (2 levels) in visit_import'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/tree/visitors/perform.rb:325:in `map'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/tree/visitors/perform.rb:325:in `block in visit_import'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/stack.rb:88:in `block in with_import'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/stack.rb:135:in `with_frame'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/stack.rb:88:in `with_import'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/tree/visitors/perform.rb:322:in `visit_import'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/tree/visitors/base.rb:36:in `visit'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/tree/visitors/perform.rb:158:in `block in visit'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/stack.rb:79:in `block in with_base'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/stack.rb:135:in `with_frame'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/stack.rb:79:in `with_base'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/tree/visitors/perform.rb:158:in `visit'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/tree/visitors/perform.rb:325:in `block (2 levels) in visit_import'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/tree/visitors/perform.rb:325:in `map'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/tree/visitors/perform.rb:325:in `block in visit_import'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/stack.rb:88:in `block in with_import'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/stack.rb:135:in `with_frame'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/stack.rb:88:in `with_import'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/tree/visitors/perform.rb:322:in `visit_import'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/tree/visitors/base.rb:36:in `visit'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/tree/visitors/perform.rb:158:in `block in visit'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/stack.rb:79:in `block in with_base'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/stack.rb:135:in `with_frame'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/stack.rb:79:in `with_base'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/tree/visitors/perform.rb:158:in `visit'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/tree/visitors/base.rb:52:in `block in visit_children'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/tree/visitors/base.rb:52:in `map'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/tree/visitors/base.rb:52:in `visit_children'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/tree/visitors/perform.rb:167:in `block in visit_children'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/tree/visitors/perform.rb:179:in `with_environment'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/tree/visitors/perform.rb:166:in `visit_children'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/tree/visitors/base.rb:36:in `block in visit'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/tree/visitors/perform.rb:186:in `visit_root'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/tree/visitors/base.rb:36:in `visit'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/tree/visitors/perform.rb:157:in `visit'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/tree/visitors/perform.rb:10:in `visit'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/tree/root_node.rb:36:in `css_tree'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/tree/root_node.rb:29:in `render_with_sourcemap'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/engine.rb:389:in `_render_with_sourcemap'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/engine.rb:307:in `render_with_sourcemap'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/exec/sass_scss.rb:387:in `run'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/exec/sass_scss.rb:63:in `process_result'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/exec/base.rb:50:in `parse'
        from /usr/share/gems/gems/sass-3.7.4/lib/sass/exec/base.rb:18:in `parse!'
        from /usr/share/gems/gems/sass-3.7.4/bin/sass:13:in `<top (required)>'
        from /usr/bin/sass:25:in `load'
        from /usr/bin/sass:25:in `<main>'

[ntkme]

You must have multiple installation of different versions of sass and depends on the order in $PATH it was using different sass binary. E.g. The error you posted is from the now obsolete original ruby-sass, not the dart sass.

[amyipdev]

I don't have different Sass installations, although I guess I just got the Ruby one.

Is the Dart one in the Fedora repositories? All I could find was the Ruby one, and using dnf's cnf implementation with sass returns the Ruby one.

[ntkme]

We don't manage how fedora re-distribute ruby-sass or dart-sass. Since you are already using npm to install dependency, the easiest way would be just install the npm sass package, and then change the command in your makefile from sass to npx sass.

[amyipdev]

alright, thanks