Question

Question about How to Build my First C++ Project
(My work and my confusion is displayed on two pictures below.)

I clicked Build button on the top, then click Build, but at the end of the process, I do not see 0 Errors, 0 warnings.
Rather, I see this in 'Build log'
"SayHello - Debug" uses an invalid compiler Skipping..."

What can I do to fix this problem, specifically which compiler should I use?

Answer 1

Do you have the GNU compiler? If you don't then maybe you have to actually get it.

Answer 2

What other compiler options does it have?

Answer 3

I'm sure that it comes with a compiler at least.

Answer 4

I downloaded CodeBlocks. Would this suffice GNU compiler?

Answer 5

Since this is a Codeblocks issue and not a compiler issue, it is hard to say.

Answer 6

Would Microsoft Visual C++ 2005/2008 work? That selection is in compiler and debugger setting.

Answer 7

Yeah. Hope it will work. Me i use Microsoft Visual C++ 2008 and it works perfecly.
Try using it.

Answer 8

If you are on Windows, you're more likely to have Visual C++

Answer 9

I think that this is CodeBlock issue too. My bro have vaguely read something online and said that to me.
May I ask what a compiler is? Maybe, that would help me figure out to find what's wrong with CodeBlocks.
The problem that I have is that the book revolves around using CodeBlocks, and my first chapter program would not work. :/
For now, I'll send an email to the authors, asking them directly.

Answer 10

Do you want my advice? Use a text editor and command line until you get a handle on things.

Answer 11

May I know how to get text editor? I am very new to computer science subject.

Answer 12

IDE is good for big projects, not necessarily for learning.

Answer 13

Are you on windows?

Answer 14

Yes, I have Window 7.

Answer 15

You can use Notepad. Or you can use Notepad++ if you want something a bit more advanced.

Answer 16

Notepad++ is at http://notepad-plus-plus.org/download/v6.5.3.html

Answer 17

The text editor is just there for editing code. That is all it needs to do.


Next you need a compiler. I recommend GCC because there is no license or any other legal nonsense to worry about.

If you want GCC to work, you get MinGW at http://sourceforge.net/projects/mingw/files/

Answer 18

Hmmm. Thank you! ^^ I'll start with learning command lines. Then pursue learning computer language.
and thank you for informing me about MinGW as well.

Answer 19

Once you have MinGW installed, you should have gcc/g++
What you would do is open command prompt (cmd.exe)

Answer 20

you would run "g++ -o <name-of-program> <file-with-code>"

Answer 21

For example if you had a file "hello-world.cpp", and you wanted the program to be named "helloworld" you would do `g++ -o helloword hellow-world.cpp`

Answer 22

ah! (nodding now in understanding) o,o

Answer 23

For now try to install MinGW

Answer 24

will get right to it. ^^

Answer 25

S. Korea has fast internet, right?

Answer 26

네 ㅎㅎㅎ. ^^ Yes, hahaha.

Answer 27

Did you install MinGW?

Answer 28

Yes. In the case for a Notepad plus plus, does the file name end with .txt? If so, would I write g++ -o wio is an awesome progammer.txt in command prompt?

Answer 29

first go to command prompt
then type in `g++ test.cpp`
Tell me what it says

Answer 30

After the command, it says
'g++' is not recognized as an internal or external command, operable program or batch file.

Answer 31

okay, do you know where you install MinGW?

Answer 32

Was it C:\MinGW ?

Answer 33

I think I have downloaded MinGW. :/ That file exists in my C drive.

Answer 34

Okay can open command line?
Then type `cd C:\`

Answer 35

Or actually, can you just use explorer and go to your C drive? Then go into the MinGW folder, tell me what is in that folder.

Answer 36

just typed cd C:\ in command prompt.

Answer 37

I just want to know the directory layout of your MinGW. There should be a bin folder and in it should be gcc and g++ I want to confirm these files are there.

Answer 38

Yes, there is a bin folder there. In the bin folder, there is a folder called mingw-get.

Answer 39

This is the folder in bin.

Answer 40

Hmm, what is in libexec?

Answer 41

Inside libexec, there is a folder called mingw-get, and in that, this is the list.

Answer 42

Things have changed a bit since I used it.... Hmmm

I guess I'll try installing it myself first and then explain what I did.

Answer 43

Thank you. ^^

Answer 44

Hmmm, let's see first of all on the installer, you want to select Basic Setup

Answer 45

What should I click after?

Answer 46

Okay so what we downloaded wasn't all of MinGW, but an installer for MinGW stuff

Answer 47

ah, so should I check everything within basic setup?

Answer 48

Nope, you wouldn't need that. Only gcc-g++ stuff

Answer 49

Click it, mark for install. Then go to apply changes under Installation

Answer 50

Downloading is in process.

Answer 51

You are quite a genius. o,o

Answer 52

go to MinGW\bin and tell me if you see g++.exe

Answer 53

The package is still downloading. I will check as soon as it is completed.

Answer 54

This is what is in the file, bin, after the installation.

Answer 55

can you run g++ and tell me what happens?

Answer 56

g++ test.cpp in command prompt, correct?

Answer 57

sure you can try that

Answer 58

you need command prompt to be navigated to that bin folder

Answer 59

The result is still the same.

Answer 60

okay, first
type `cd C:\MinGW\bin`

Answer 61

then just type `g++`

Answer 62

tell me what happens.

Answer 63

This popup comes out. G++.exe - No Disk

Answer 64

Yeah, that happened to me and I was hoping it wouldn't happen to you. This is absolutely ridiculous. Let me think

Answer 65

No problem. ^^

Answer 66

May we continue our discussion tomorrow? I have to sleep now to wake up in time for school tomorrow. :/ Thank you for the your continuous help.
Thank you again, wio. ^^

Answer 67

Sure. Good luck.

Answer 68

Later~