title: library not found for libstdc++.6.0.9 not found xcode 11.1
body: <p>As this library is deprecated 5 years ago, the workaround is followed in this URL <a href="http://orenjiapp.com/2018/08/22/xcode-10-ios-12-does-not-contain-libstdc6-0-9/" rel="nofollow noreferrer">http://orenjiapp.com/2018/08/22/xcode-10-ios-12-does-not-contain-libstdc6-0-9/</a> 
  "Indeed this workaround has worked to build the project successfully, but I don't want to use this temporary solution if I remove that libstdc++.6.0.9.tbd and trying to build the project using libc++.1.tbd and throwing errors as shown below".
  "Does anyone know what is the actual solution for this scenario?"</p>
  
  <p>"Undefined symbols for architecture arm64:
    "std::_Rb_tree_rebalance_for_erase(std::_Rb_tree_node_base*, std::_Rb_tree_node_base&amp;)", referenced from:
        std::_Rb_tree, std::_Select1st >, std::less..."
  ld: symbol(s) not found for architecture arm64
  clang: error: linker command failed with exit code 1 (use -v to see invocation)"
  The Errors which are currently facing as follows</p>
  
  <p>"Showing All Messages
  Undefined symbol: std::_Rb_tree_rebalance_for_erase(std::_Rb_tree_node_base*, std::_Rb_tree_node_base&amp;)</p>
  
  <p>Showing All Messages
  Undefined symbol: std::_List_node_base::hook(std::_List_node_base*)</p>
  
  <p>Showing All Messages
  Undefined symbol: std::string::assign(char const*, unsigned long)</p>
  
  <p>Showing All Messages
  Undefined symbol: std::__throw_length_error(char const*)</p>
  
  <p>Showing All Messages
  Undefined symbol: std::allocator::allocator()</p>
  
  <p>Showing All Messages
  Undefined symbol: std::_List_node_base::unhook()</p>
  
  <p>Showing All Messages
  Undefined symbol: std::basic_string, std::allocator >::basic_string(char const*, std::allocator const&amp;)</p>
  
  <p>Showing All Messages
  Undefined symbol: std::string::compare(std::string const&amp;) const</p>
  
  <p>Showing All Messages
  Undefined symbol: std::string::operator=(char const*)</p>
  
  <p>Showing All Messages
  Undefined symbol: std::_Rb_tree_increment(std::_Rb_tree_node_base const*)</p>
  
  <p>Showing All Messages
  Undefined symbol: std::_Rb_tree_insert_and_rebalance(bool, std::_Rb_tree_node_base*, std::_Rb_tree_node_base*, std::_Rb_tree_node_base&amp;)</p>
  
  <p>Showing All Messages
  Undefined symbol: std::allocator::~allocator()</p>
  
  <p>Showing All Messages
  Undefined symbol: std::string::operator=(std::string const&amp;)</p>
  
  <p>Showing All Messages
  Undefined symbol: std::basic_string, std::allocator >::basic_string(std::string const&amp;)</p>
  
  <p>Showing All Messages
  Undefined symbol: std::_Rb_tree_decrement(std::_Rb_tree_node_base*)</p>
  
  <p>Showing All Messages
  Undefined symbol: std::_Rb_tree_increment(std::_Rb_tree_node_base*)</p>
  
  <p>Showing All Messages
  Undefined symbol: std::basic_string, std::allocator >::basic_string()</p>
  
  <p>Showing All Messages
  Undefined symbol: std::string::length() const</p>
  
  <p>Showing All Messages
  Undefined symbol: std::basic_string, std::allocator >::~basic_string()</p>
  
  <p>Showing All Messages
  Undefined symbol: std::string::c_str() const"</p>