[!] Invalid `Podfile` file: cannot load such file -- /Users/didi/Documents/Flutter/flutter/packages/flutter_tools/bin/podhelper.

[jiamao130]

[!] Invalid `Podfile` file: cannot load such file -- /Users/didi/Documents/Flutter/flutter/packages/flutter_tools/bin/podhelper.

 #  from /Users/didi/Downloads/flutter_hrlweibo-master/ios/Podfile:26
 #  -------------------------------------------
 #  
 >  require File.expand_path(File.join('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)
 #  
 #  -------------------------------------------

/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.9.3/lib/cocoapods-core/podfile.rb:301:in `rescue in block in from_ruby'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.9.3/lib/cocoapods-core/podfile.rb:295:in `block in from_ruby'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.9.3/lib/cocoapods-core/podfile.rb:50:in `instance_eval'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.9.3/lib/cocoapods-core/podfile.rb:50:in `initialize'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.9.3/lib/cocoapods-core/podfile.rb:293:in `new'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.9.3/lib/cocoapods-core/podfile.rb:293:in `from_ruby'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.9.3/lib/cocoapods-core/podfile.rb:259:in `from_file'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.3/lib/cocoapods/config.rb:200:in `podfile'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.3/lib/cocoapods/command.rb:150:in `verify_podfile_exists!'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.3/lib/cocoapods/command/install.rb:46:in `run'
/Library/Ruby/Gems/2.6.0/gems/claide-1.0.3/lib/claide/command.rb:334:in `run'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.3/lib/cocoapods/command.rb:52:in `run'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.9.3/bin/pod:55:in `<top (required)>'
/usr/local/bin/pod:23:in `load'
/usr/local/bin/pod:23:in `<main>'

Exception: Error running pod install