string could not resolved error in Eclipse for C Eclipse can t resolve standard library

Question

I have the following code in eclipse for c   and it s underlining string and cout and saying could not be resolved    include  lt string gt   include  lt iostream gt   using namespace std    int main         string s      s    hello world       cout  lt  lt  s      return 0       Anyone know why   edit  screenshot  Edit  I have found a solution thanks everyone  see answers

User · Answer

I had the same problem  Change the CurrentBuilder in Properties C C   Build ToolChainEditor to another value and apply it  Then again change it the original value  It works

User · Answer

Hello here is a simple solution   Just go to File -  Convert to a C C   Autotools Project Select your project files appropriately   Inclusions will be added to your project file

User · Answer

I had this issue with AOSP  clang    Add external libcxx include to includes and  LIBCPP COMPILER CLANG to symbols

User · Answer

I ve just replied to the related question given by Vanuan  Eclipse CDT  Unresolved inclusion of stl header   and this is my answer    You could also try use  CDT GCC Built-in Compiler Settings   Go to the project properties   C C   General   Preprocessor Include Path   Providers tab then check  CDT GCC Built-in Compiler Settings  if it is not   None of the other solutions  play with include path  etc  worked for me for the type  string   but this one fixed it

User · Answer

Set   COMMAND  to g   on Linux  Under  Preprocessor Include Paths  Macros  etc   and  CDT GCC Built-in Compiler Settings  there is an undefined   COMMAND  variable if you imported the sources from an existing Makefile project   Eclipse tries to run that command to parse its stdout to find headers  but   COMMAND  is not set by default  and so it is not able to do so   I have explained this in more detail at  How to solve  quot Unresolved inclusion   lt iostream gt  quot  in a C   file in Eclipse CDT

User · Answer

The problem was that I needed to have both minGW and MSYS installed and added to PATH   The problem is now fixed

User · Answer

I had the same problem  Adding include path does work for all except std  string   I noticed in the mingw-Toolchain many system header files   tcc  I added filetype   tcc as  C   Header File  in Preferences   C C    File Types  Now std  string can be resolved from the internal index and Code Analyzer  Perhaps this is added to Eclipse CDT by default in feature   I hope this helps to someone      PS  I m using Eclipse Mars  mingw gcc 4 8 1  Own Makefile  no Eclipse Makefilebuilder

User · Answer

I ve also had this issue   I ve found out that it is because Eclipse couldn t find all include headers   Easy fix   This simple and quick solution might fix your problem  for example  when the Eclipse project was moved to a different location on disk  then imported again in Eclipse   if not  jump to the next section  Detailed fix      Go to project   properties   C C   Build   Tool Chain Editor Change the Current toolchain to any other value  click Apply Set the Current toolchain to the original value  click Apply Compile your project   Detailed fix   Before proceeding check if your toolchain is properly installed    Switch to a new workspace  Remove  cproject file and the   settings  folder Import your project as Makefile project  or just create a new if you prefer CDT Build system  Go to project-  properties- C C   Build- Toolchain editor  Choose your toolchain  Press project- Index- Rebuild If the problem isn t resolved  change system language to English and try the above steps again    Outdated answer   This answer has been outdated  Proceed if nothing of the above helps  If the previous steps don t help we ll need to setup include directories manually  not recommended though    Search all unresolved headers using  Right click on Project   Index   Search for unresolved includes   Search their locations using  find  usr include  -name vector -print  Put include folder paths to  Right click on Project   Properties   C   General Path and Symbols C    Run  Right click on Project   Index   Rebuild  Start from step 1 if there are any unresolved symbols left

User · Answer

You need to ensure your environment is properly setup in Eclipse so it knows the paths to your includes  Otherwise  it underlines them as not found

[c++] "string could not resolved" error in Eclipse for C++ (Eclipse can't resolve standard library)

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