error: undefined reference to `_imp__JNI_CreateJavaVM@12'
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Hi,
I'm trying to get my first c++/java to work but I have an error, which is produced by the following line of code
jint rc = JNI_CreateJavaVM(&jvm, (void**)&env, &vm_args);error: undefined reference to `_imp__JNI_CreateJavaVM@12'
Some online posts suggested to add
LIBS += -L"C:/Program Files/Java/jdk1.8.0_131/lib/" -ljvm
to the .pro but it doesn't make a difference.
I also tried
LIBS += -L"C:/Program Files/Java/jdk1.8.0_131/lib/jvm.lib" -ljvm
I don't receive undefined reference to `_imp__JNI_CreateJavaVM@12' but I get a different error
error: cannot find -ljvm
How can I get it to work?
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Hi,
What version of Qt are you using ? With which compiler ?
Is your Java library compiled with the same compiler ?
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Qt Creator 4.3.1
Based on Qt 5.9.1 (MSVC 2015, 32 bit)MinGW 5.3.0 32bit for C++
Is your Java library compiled with the same compiler?
I'm not sure if I understood you correctly but I install java using an executable on Windows.
The following is all I added to my .pro
INCLUDEPATH += "C:/Program Files/Java/jdk1.8.0_131/include/"
INCLUDEPATH += "C:/Program Files/Java/jdk1.8.0_131/include/win32"
LIBS += -L"C:/Program Files/Java/jdk1.8.0_131/lib/" -ljvm -
Java is likely built with Visual Studio. You can't mix and match libraries built with different compilers on Windows especially VS and MinGW, but also prior to VS2017, there was no compatibility between versions of VS however VS2017 is compatible with VS2015.
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This has nothing to do with Qt Creator.
Like I already wrote, you have to ensure that you are using the same compiler everywhere so you should check which version of Visual Studio was used to build your java library and use that one to build your application which implies to download Qt for that compiler also.
