Discover Top Posts Tagged with #compile error

C++ compiler diagnostic gone horribly wrong: error: explicit specialization in non-namespace scope

Here is a g++ error message that took me an embarrassingly long time to figure out: In file included from /home/llvm-project/llvm/lib/IR/Constants.cpp:15: /home/llvm-project/llvm/lib/IR/LLVMContextImpl.h:447:11: error: explicit specialization in non-namespace scope ‘struct llvm::MDNodeKeyImpl<llvm::DIBasicType>’ template <> struct MDNodeKeyImpl<DIStringType> { ^ This is the code: template <>…

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#-g #c++#compile error #compiler diagnostic #llvm #namespace #rebase #specialization #toolchain

"UnpackLibraryResources" or "MTouch" task failed, during compile?

“UnpackLibraryResources” or “MTouch” task failed, during compile?

Now this is regarding the mysterious build error, “UnpackLibraryResources” task failed and the “MTouch” task failed, which unfortunately occurs out of nowhere in Xamarin Forms projects…

It all started…

So sometimes when I try to build and run my perfect Xamarin Forms project in Visual Studio, by the way which has no compilation issues, suddenly breaks down with a compilation error saying…

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#Compile Error #MTouch #MTouch task failed #Task failed #UnpackLibraryResources #UnpackLibraryResources task failed #Xamarin Errors #Xamarin Forms

Compile 時出現缺少組件解決方法

xml2-config not found apt-get install libxml2-dev

openssl header not found apt-get install libssl_dev

libcurl header not found apt-get install libcurl3-dev

jpeglib.h not found apt-get install libjpeg8 libjpeg8-dev

png.h not found apt-get install libpng12-dev

freetype.h not found apt-get install libfreetype6 libfreetype6-dev

mcrypt.h not found apt-get install libmcrypt-dev

#solution #php #compile #linux #compile error

Compiling Math::BigInt::GMP FAIL

The Perl module Math::BigInt::GMP is a wrapper around the GNU Multiple Precision arithmetic C library and is useful for certain other math-intensive Perl operations. Ominously, the C library page warns that "GMP is very often miscompiled! Please never use your newly compiled libgmp.a or libgmp.so without first running make check" which makes the hairs on the back of my neck stand on end. However, I needed this lib.

On my Ubuntu linux machine, the Perl library (Math::BigInt::GMP) would not compile because of gmp was not installed. It would have been nice if the docs for this lib had mentioned this dependency. In any case, I install gmp with the following shell command:

apt-get install libgmp3-dev

If prompted by apt-get to install additional dependencies, agree. Then go back and install Math::BigInt::GMP.

make clean; perl Makefile.PL && make test && make install

I'm beginning to think that entropy is enclosing around the Great Camel.

#compile error #gmp #Math::BigInt::GMP #perl #programming

Ubuntu Cmake issue with mysql c++ connector

I have encountered an error while i try to follow the installation instructions on this page for compiling mysql c++ client. One of the errors was the misleading info in download link of the page . It direct you to linux generic code page and if you download the linux generic code you are dhoomed (you will get bunch of libraries and nothing to compile). So first you have to download the source code for the connector ( not the linux generic code ). Then i encountered this weird problem when i try to compile things.

-- The C compiler identification is GNU -- The CXX compiler identification is GNU -- Check for working C compiler: /usr/bin/cc -- Check for working C compiler: /usr/bin/cc -- works -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Check for working CXX compiler: /usr/bin/cc -- Check for working CXX compiler: /usr/bin/cc -- works -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- ENV{MYSQL_DIR} = CMake Error at FindMySQL.cm:165 (MESSAGE): mysql_config wasn't found, -DMYSQL_CONFIG_EXECUTABLE=... Call Stack (most recent call first): CMakeLists.txt:55 (INCLUDE) CMake Error at FindMySQL.cm:167 (MESSAGE): Cannot find MySQL. Include dir: MYSQL_INCLUDE_DIR-NOTFOUND library dir: cxxflags: Call Stack (most recent call first): CMakeLists.txt:55 (INCLUDE) -- Configuring incomplete, errors occurred!

Here I can see more than one problems, in tutorial you have no instruction to declare a variable named MYSQL_DIR. But here you need a one so type

Which mysql

and export it as

export MYSQL_DIR=/usr/bin/mysql

Then for the configuration file missing error you have to install libmysqlclient16-dev library to have mysql_configure file in your system. So type,

sudo apt-get install libmysqlclient16-dev

#C++#connector #compile error #linux #Programming #MySQL