修改了starman的conf.yml出错

凌波微步！

我第一次使用的starman配置用的gfortran，昨天想用pgf90来安装netcdf，然后就贸然修改了conf.yml。结果，现在总报错，即使我改回到原来的conf.yml也还是出现下面的错误：
Traceback (most recent call last):
8: from ./starman:42:in <main>' 7: from ./starman:42:in new'
6: from /home/tqybk/wanghai/starman/framework/commands/install.rb:27:in initialize' 5: from /home/tqybk/wanghai/starman/framework/commands/command_parser.rb:44:in parse_packages'
4: from /home/tqybk/wanghai/starman/framework/settings.rb:90:in init' 3: from /usr/lib/ruby/2.5.0/psych.rb:263:in load'
2: from /usr/lib/ruby/2.5.0/psych.rb:350:in parse' 1: from /usr/lib/ruby/2.5.0/psych.rb:402:in parse_stream'
/usr/lib/ruby/2.5.0/psych.rb:402:in `parse': (): found unexpected end of stream while scanning a quoted scalar at line 10 column 14 (Psych::SyntaxError)
请问该怎么修复？如果我想改conf.yml用pgf90编译fortran 部分，又该怎么办？叩谢！