Undefined method `relative_path_from' for nil:NilClass (NoMethodError)

[savage...@gmail.com]

Okay so, I have made a random libgosu game and tried to make it executable using ocra.

Why do I get this error?

B:\RUBY\Practice\GOSU\Completed\AeroXploder>ocra AeroXploder.rb --no-dep-run

=== Detected gem did_you_mean-1.2.0 (loaded, files)

===     19 files, 38722 bytes

=== Detected gem ocra-1.3.10 (loaded, files)

===     5 files, 210830 bytes

=== Including 59 encoding support files (3909616 bytes, use --no-enc to exclude)

=== Building AeroXploder.exe

=== Adding user-supplied source files

=== Adding ruby executable ruby.exe

=== Adding detected DLL C:/Ruby25-x64/bin/ruby_builtin_dlls/libgmp-10.dll

=== Adding detected DLL C:/Ruby25-x64/bin/ruby_builtin_dlls/libffi-6.dll

=== Adding external manifest C:/Ruby25-x64/bin/ruby_builtin_dlls/ruby_builtin_dlls.manifest

=== Adding external manifest

Traceback (most recent call last):

        8: from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/ocra-1.3.10/bin/ocra:1203:in `block in <top (required)>'

        7: from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/ocra-1.3.10/bin/ocra:868:in `build_exe'

        6: from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/ocra-1.3.10/bin/ocra:868:in `new'

        5: from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/ocra-1.3.10/bin/ocra:1041:in `initialize'

        4: from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/ocra-1.3.10/bin/ocra:1041:in `open'

        3: from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/ocra-1.3.10/bin/ocra:1057:in `block in initialize'

        2: from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/ocra-1.3.10/bin/ocra:918:in `block in build_exe'

        1: from C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/ocra-1.3.10/bin/ocra:918:in `each'

C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/ocra-1.3.10/bin/ocra:920:in `block (2 levels) in build_exe': undefined method `relative_path_from' for nil:NilClass (NoMethodError)

B:\RUBY\Practice\GOSU\Completed\AeroXploder>

[Rubinator]

I am facing the same issue with using Ruby 2.5. Is there a resolution for this ?