This Qt application was complied by VS 2010 for the end users, but the executing application doesn’t find Qt’s dll. In the folder, there are QtGui4.dll and QtCore4.dll How can I solve this problem?
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This Qt application was complied by VS 2010 for the end users, but the executing application doesn’t find Qt’s dll. In the folder, there are QtGui4.dll and QtCore4.dll How can I solve this problem?
Welcome to the Dll Hell!
Everytime you use Qt for deployment you have to be sure that
1) The libraries against which you are compiling are the same version and the same compiler
2) There are no conflicts with other libraries in system path
3) If you compile Debug you must use *d.dll version of the libraries
Be sure for example that if your program is compiled with VC9 then also you dll are compiled with VC9.
You can understand which libraries you are linking against with a very useful program called Dependency Walker. http://www.dependencywalker.com/