Member declaration not found

Question

I have worked on a C++ project using a regular text editor. Later, I imported all the files to Eclipse to make it debugging easier.

In Eclipse a weird thing happens. It complains "Member declaration not found" even if I have included the header file. The header file has the function definition.

How do I fix this problem?

Does eclipse know where to look for the header file? If it does, then we'll probably need some more info — Neowizard, Feb 17 '12 at 08:15

score 24 · Answer 1 · edited May 23 '17 at 11:53

"Member declaration not found" is an error produced by the Eclipse static analysis tool (codan). If you get this error, but the compilation succeeds this is a false positive. Older versions of this tool are known to give some false positives, see for example this bug report. So I recommend updating Eclipse CDT to the most recent version.

Another thing that may cause this error is an unresolved include that prevents Eclipse from parsing a portion of your code correctly. Selecting Index -> Search For Unresolved Includes in the context menu of the project will give you the list of unresolved includes. See this answer for the details of how to fix it.

Here's an example:

class C {
  void f(std::vector<int>&);
};

void C::f(std::vector<int>&) {} // Member declaration not found

The above example causes "Member declaration not found" error in Eclipse CDT even if you have <vector> included but unresolved (due to misconfigured include paths).

score 9 · Answer 2 · answered Feb 09 '15 at 22:29

9

I also experienced this problem several times in Eclipse though building is successful. We can simply solve this problem by rebuild the C/C++ index in project menu. :)

answered Feb 09 '15 at 22:29

Srijeyanthan

126
1
2

score 3 · Answer 3 · answered Jan 11 '19 at 07:15

3

I got this problem in Eclipse, but building in terminal was successful. So I just rebuild the C/C++ index in Eclipse: Right click on the project -> index -> rebuild.

answered Jan 11 '19 at 07:15

score 1 · Answer 4 · answered Jul 09 '14 at 07:17

1

I noticed that "Member declaration not found" will report also when you create a class with a name that is already used or is a a keyword.

answered Jul 09 '14 at 07:17

Luca Davanzo

21,000
15
120
146

1

This does not provide an answer to the question. To critique or request clarification from an author, leave a comment below their post. – Yohanes Khosiawan 许先汉 Nov 05 '14 at 03:55
2

I'm not agree with you. – Luca Davanzo Nov 05 '14 at 07:59

score 0 · Answer 5 · edited Mar 04 '15 at 18:31

I found an error in my .cpp file that creates this message. I had namespace std { in the front of the file, and I placed new functions that I was creating after the closing } for namespace. Moving the closing } to the end of the file so that the defined files were now in the namespace fixed the error message.

Example that creates the error.

#include "MyStrFuncs.h"

**namespace** std {

MyStrFuncs::MyStrFuncs() {
    // TODO Auto-generated constructor stub
}

MyStrFuncs::~MyStrFuncs() {
    // TODO Auto-generated destructor stub
}

}  // This ends the **namespace**

//Additional functions will now generate the member declaration not found error...

int MyStrFuncs::str2i(string strIn) {
    int results;
    istringstream convert(strIn);

    if( !(convert)>>results) results = 0;

    return results;
}
// Fix by moving closing } for namespace to here.  Good luck.

score 0 · Answer 6 · answered Jul 22 '17 at 08:26

0

Even with the CDT 9.2.1 and Eclipse Neon 4.6.3 "Member declaration not found" problems are reported. As answered by Srijeyanthan, the following should resolve it: Project > C/C++ Index > Rebuild.

answered Jul 22 '17 at 08:26

natmat

21
3

score 0 · Answer 7 · answered Feb 04 '18 at 14:05

I also experienced this problem while splitting source and header files in eclipse.I resolved this by "implementing methods" eclipse instead of manual typing and building the project.By implementing methods "inline functions" will be added to source file.

Member declaration not found

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