I try to work with socket.io in C++ but I can't seem to get the example running.
First it asked me to convert the project to my visual studio (which is 2015). So I did that. Then it was missing libraries offcourse (boost, websocket++, rapidjson). So I added them to the additional libraries in the project settings. Then it was searching for boost.lib. Boost.lib doesnt exist in the boost library I installed on my pc, so I deleted it from the dependency list. I figured I already included boost, why would it search for a lib that doesn't exist. I ran bjam.exe and b2.exe etc from boost, so if there would be a boost.lib it should be there I guess and it isn't.
I then got this error: https://msdn.microsoft.com/en-us/library/f6xx1b1z.aspx
So I added msvcrt.lib and msvcmrt.lib to the linker's Additional Dependencies property. Which caused the errors in the included image..
Now all the steps seemed to fix the problems I had, but also create more errors in the process. I do not understand how to run a project like this and I can't find a good explanation of the steps I need to take.
Can anyone explain what I am doing wrong?
https://github.com/socketio/socket.io-client-cpp
That is what I try to run, the included SioChatExample
Thanks for any help in advance!
Current errors..... :(
i think many errors because of VC++ version.
creator of project Socket.io-c++, he used VC++ 11.0
if you use VC++ 14.0 to build it, you will get the error. for suggestion you should use VC++ 12.0
In cast you want to use prebuilt libraries:
i myself just try many solutions,
goodness i fix all
you can get them here Prebuilt-libraries-for-Socket.io-c++
for Visual Studio 2015, what u need are:
install more Visual Studio 2013 (i install Visual Studio 2013 community) to get VC++ 12.0 (prebuilt-lib is built in VC++ 12.0)
change your project Platform Toolset to Visaul Studio 2013 (v120)
link libraries to your project
libraries you need are:
libboost_date_time-vc120-mt-gd-1_50.lib
libboost_random-vc120-mt-gd-1_50.lib
libboost_system-vc120-mt-gd-1_50.lib
sioclient.lib
include folder of *.h (header of Socket.io-C++) to your project
build and run
Related
Following the instructions here:
docs.opencv.org/doc/tutorials/introduction/windows_visual_studio_Opencv/windows_visual_studio_Opencv.html#windows-visual-studio-how-to
I setup an OpenCV project in VS 2015 Community and used the pre-built libraries. It works until I get this message:
"MSVCP120D.dll is missing from your computer"
From doing some searching I gathered this means that the pre-build libraries are only supposed to be used with an older version of VS so I figured I'd just compile them myself using this:
docs.opencv.org/doc/tutorials/introduction/windows_install/windows_install.html#windowssetpathandenviromentvariablehere
While it appears to compile properly and despite flagging "BUILD_SHARED_LIBS" I can't find any DLL files in the output - just a lot of VS solutions:
imgur.com/JdSc5CH
Would someone be able to give me some advice on how to generate the DLLs?
thanks!
I'm a beginner at this stuff. I've since learned a lot about Visual Studio, about CMake and about OpenCV. Got it all working now, took me a day or two.
It turns out you have to compile the openCV library from git repository in order to be compatible with Visual Studio (VS14) 2015. As of this date, no go on pre-compiled version supporting VS14.
I've organized what I've learned, placed it online here in case anybody else has the same frustrations. Its pretty detailed, too much content to post here.
VS2015 uses MSVCP140.dll, I think your error message is about a redistributable package of VS2013.
And try BUILD_SHARED_LIBS as on/off.
I've been trying to build boost:asio for Visual Studio 2012.
I already did bjam and it gave me the include and lib addresses, which I pasted in VS settings.
Now compiler can't find 'libboost_system-vc110-mt-gd-1_58.lib', but in stage lib I got the 'libboost_system-vc120-mt-gd-1_58.lib', that is probably a newer version.
How can I solved this?
I searched it for days and couldn't get through this.
Looks like you are using VisualStudio 2012 (is requesting vc110 version libraries) but you actually have build boost for Visual Studio 2013 (vc120).
You need to specify the right toolset to boost build (--toolset=msvc-11.0) and not let him pick the default.
Are you using an older-than-last version of boost?
Make sure that your version does not predate the support for VS2012. The mechanism for detecting the version is different in bjam and in the autolink headers, so that with recent versions of Visual Studio you can end up trying to link to the latest version known of boost "vc110", even though bjam detected it correctly.
I am dynamically loading (server) jvm.dll into my 64-bit Visual Studio 2013 C++ application using LoadLibrary(), in order to execute native Java code using JNI.
In the VS debugger, I am getting a number of access violations as the dll is being loaded (yet things seem to work if I 'continue' after these); and then a hard crash when some JNI calls are being invoked. I have tried jvm.dll's from Java 1.7 and Java 1.8, with the same issues.
I suspect the issue to be runtime library incompatibility. Dependency walker indicates that even the latest jvm.dll depends on msvcr100.dll (from Visual Studio 2010). I have heard dire warnings of the consequences of using incompatible runtime versions; and have seen the results first hand in other instances.
Has anyone else run into this problem? Is there any version of jvm.dll available that is compiled against Visual Studio 2013?
Thanks,
Dan
Just recently (Feb 2015) I compiled a JNI application which invokes the JVM to run a Java program. I used the most recent JRE version (1.8.0_31) and Visual Studio 2013. I am also loading the jvm.dll at runtime. Take a look at this post if you want to see how I setup my JNI calls.
So it is possible...
Make sure that the JRE containing jvm.dll is built for the same architecture (32bit or 64bit) as your Visual Studio project. If you are using 64bit, you may need to add the x64 as your configuration. To do this go to:
Solution --> Properties --> Configuration Properties
Also make sure your includes/libraries are correct.
For my project, I needed to include the following:
C:\Program Files\Java\jdk1.8.0_31\include
C:\Program Files\Java\jdk1.8.0_25\include\win32
Also, I needed to include jvm.lib which is located at:
C:\Program Files\Java\jdk1.8.0_31\lib
Make sure you also add the jvm.lib to your linker input. Alternatively you can use the preprocessor:
#pragma comment(lib, "jvm.lib")
Hopefully, this should help get your project configured right. If you are still having errors, I would recommend uninstalling Java completely, and re-installing after. Perhaps the same with Visual Studio 2013 as well...
I uploaded my (VS2013) project folder and provided it to the other members of my team, but when they tried to build/run it, using Visual Studio 2012 they got this error, it also happened on their version of Visual Studio 2013.
The program can't start because MSVCR100D.dll is missing from your computer. Try reinstalling the
program to fix this problem.
They reinstalled VS2010 but no go.
I also tried to statically link my project by using /MT in the Code Generation options but now I get:
Unresolved External Symbol __free_dbg libcmptd.lib cout.obj
....25 more...
How can I get it so my project can be build/ran on my team members pc? How do I resolve the unresolved externals? It seems to happen purely with regular Microsoft files.
You are mixing C++ libraries built with different versions of the compiler (and as we know some of them are linked against debug dynamic version of VC10 runtime library). This is not supported, as different compiler versions have different ABIs.
To fix the mess you need to find libraries built with parameters that match parameters of your project. They should be built:
with the same compiler version (ex. VS 2013)
with the same configuration (Debug/Release)
against the same platform (x86/x64/ARM)
against the same runtime library variant (static/dynamic + debug/release)
You could either try to find prebuilt versions on the web or to build libraries yourself from source codes. Often, you will want to have multiple configuration/platforms for your project and, thus, you will need multiple versions of your libraries.
If your search will not succeed (for example if there is no VS2013 build for a closed source library) you could roll back your project to another version of compiler and to start over.
Any attempts to link incompatible libraries even if somehow succeeded will lead to random crashes.
This message generally states that the dll is referred to directly or indirectly in your application and is missing.
The 'D' at the end show us this is the Debug version of the file, this is DLL file is provided with the Visual Studio 2010 installation. So the MSVCR100D.dll would be provided with the installation of Visual Studio 2010.
Of course, you could be missing other versions 2008 (MSVCR90D) 2010 (MSVCR100D) 2012 (MSVCR110D) or the 2013 (MSVCR120D), each dll is provided according to the Visual Studio version.
There are a few ways to solve this:
Check to be sure that you're compiling all the components of your
project in Release mode. If this does not solve the issue continue
to the next steps.
You could solve this locally by installing Visual Studio 2010 on your
machine. This is not what I would recommend, but it would surely
overcome the issue
You could also download the file from this third party website and
copy it to your projects bin:
http://www.dll-files.com/dllindex/dll-files.shtml?msvcr100d
This option is the LEAST recommended option.
Run dependency Walker and see what file depends on the MSVCR100D.dll
and the try and fix that file in order to break your dependency. You can download depends here: http://www.dependencywalker.com/
Check to be sure that you're project is linking the correct version of
the CRT and any other libraries you may be using (e.g., MFC, ATL,
etc.)
Note: Installing the redistributables alone will NOT solve this problem, since the redistributables only contain the release version of the file MSVCR100.dll (notice no 'D')
Would it be possible that in your project you are somehow using some component/library built with Visual Studio 2010, which requires the MSVCR100D DLL?
I'm trying to compile a release version of love2d on windows. I got all the dependencies downloaded / compiled. However, I have one last problem that I cannot fix:
The object or library file
'lib\libmodplug.lib' was created with
an older compiler than other objects;
rebuild old objects and libraries
I had similar issues with other dependencies, however I was able to compile those dependencies. The libmodplug source does not provide a Visual Studio solution or project file, and I couldn't find any hints on how to compile this under windows.
By the way, I'm using Visual Studio C++ Express 2010.
Thanks in advance!