Found additional characters after parsing the root plist object

There is a project.pbxproj which can't be opened by Xcodeproj, but it's can work with XCode 9.3, the error logs as follows:
>/Users/tgame/.rvm/gems/ruby-2.3.0@global/gems/nanaimo-
>0.2.3/lib/nanaimo/reader.rb:284:in `raise_parser_error': [!] Found additional characters after >parsing the root plist object (Nanaimo::Reader::ParseError)
> # -------------------------------------------
> # // !$*UTF8*$!{
>2> archiveVersion = 1;
> ^
> # classes = {
> # };
> # -------------------------------------------
> from /Users/tgame/.rvm/gems/ruby-2.3.0@global/gems/nanaimo->0.2.3/lib/nanaimo/reader.rb:109:in `parse!'
> from /Users/tgame/.rvm/gems/ruby-2.3.0/gems/xcodeproj-1.5.2/lib/xcodeproj/plist.rb:27:in >`read_from_path'
> from /Users/tgame/.rvm/gems/ruby-2.3.0/gems/xcodeproj->1.5.2/lib/xcodeproj/project.rb:200:in `initialize_from_file'
>
change FROM:
> // !$*UTF8*$!{
TO:
> // !$*UTF8*$!
> {

solved it