Error: main.cpp: warning: using directive refers to implicitly-defined namespace ‘std’
If you see the following error when trying to compile a C++ application:
main.cpp: : : warning: using directive refers to implicitly-defined namespace 'std'
then that means you do not have any header file inclusion that uses std namespace.
You can fix this warning by including a C++ header file that uses a std namespace otherwise the compile will not know about std namespace.
How to Solve this Error:
Very simple, just include a c++ header file, as follows:
- A mistake about implicitly providing default constructors
- Error: array bound is not an integer constant before ‘]’ token
- [Solved] The type or namespace name ‘Service’ does not exist Error
- Visual Studio 2012 error C4996: ‘scanf’: This function or variable may be unsafe.
- runtime error ‘9’: subscript out of range error in VBA programming
- Keil’s duplicate definition problem: Error: L6200E: Symbol F6x8 multiply defined
- QT solves error: use of deleted function and is private within this context
- How to Fix “initializer element is not constant” error
- [How to Solve] java.lang.IllegalArgumentException: Request header is too large
- [Fixed]ERROR: canceling statement due to conflict with recovery
- [Solved] Illegal access: this web application instance has been stopped already
- C++ BUG: [Error] invalid array assignment
- No match for ‘operator =’ both ends of the equal sign do not match
- Nginx: How to Use Error_Page
- Error. Onload failed when ‘rjava’ was calculated in loadnamespace()
- GO Exception Runnerw.exe: CreateProcess failed with error 21
- Solution of “TCLs parsing failed” when dnf starts
- Google Play googleapi: Error 403: Google Play Android Developer API has not been used in project
- Android studio version 3.0 import version 2.2.2 error Error:This Gradle plugin requires Studio 3.0 minimum
- Error: # error PCL requires C++ 14 or above