Qt Creator对现有类的未定义引用

我正在编写一个应用程序，该应用程序使用我同时开发的另一个库。这就产生了一个问题，QtCreator将期望库永远不会更改到删除头文件导致构建项目失败的程度，并且即使新类编译到库中也会报告为未定义。这是怎么回事?就好像它并不是在看图书馆。有什么办法可以强迫它让我使用新添加到我的库吗?

这是Application .pro

QT       += core gui opengl
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
TARGET = BlockEditor
TEMPLATE = app

SOURCES += main.cpp
    mainwindow.cpp 
    openglqt.cpp 
    tilelabel.cpp
HEADERS  += mainwindow.h 
    openglqt.h 
    tilelabel.h
FORMS    += mainwindow.ui
LIBS += -L/usr/local/lib -lGLU -lGLEW
QMAKE_LFLAGS += -Wl,--rpath=\$$ORIGIN/libs
QMAKE_RPATH=
release {
    LIBS += -L$$PWD/../drEngine/bin/Release/ -ldrEngine
}
debug {
    LIBS += -L$$PWD/../drEngine/bin/Debug/ -ldrEngine
}
INCLUDEPATH += $$PWD/../drEngine
DEPENDPATH += $$PWD/../drEngine
QMAKE_CXXFLAGS += -std=c++11

库是在Code::Blocks

<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<CodeBlocks_project_file>
    <FileVersion major="1" minor="6" />
    <Project>
        <Option title="Dark Realms Engine" />
        <Option pch_mode="2" />
        <Option compiler="gcc" />
        <Build>
            <Target title="Debug">
                <Option output="bin/Debug/drEngine" imp_lib="$(TARGET_OUTPUT_DIR)$(TARGET_OUTPUT_BASENAME).a" def_file="$(TARGET_OUTPUT_DIR)$(TARGET_OUTPUT_BASENAME).def" prefix_auto="1" extension_auto="1" />
                <Option object_output="obj/Debug/" />
                <Option type="3" />
                <Option compiler="gcc" />
                <Option createDefFile="1" />
                <Option createStaticLib="1" />
                <Compiler>
                    <Add option="-g" />
                </Compiler>
            </Target>
            <Target title="Release">
                <Option output="bin/Release/drEngine" imp_lib="$(TARGET_OUTPUT_DIR)$(TARGET_OUTPUT_BASENAME).a" def_file="$(TARGET_OUTPUT_DIR)$(TARGET_OUTPUT_BASENAME).def" prefix_auto="1" extension_auto="1" />
                <Option object_output="obj/Release/" />
                <Option type="3" />
                <Option compiler="gcc" />
                <Option createDefFile="1" />
                <Option createStaticLib="1" />
                <Compiler>
                    <Add option="-O3" />
                </Compiler>
                <Linker>
                    <Add option="-s" />
                </Linker>
            </Target>
        </Build>
        <Compiler>
            <Add option="-std=c++11" />
            <Add option="-Wall" />
        </Compiler>
        <Unit filename="Block.cpp" />
        <Unit filename="Block.hpp" />
        <Unit filename="BlockList.cpp" />
        <Unit filename="BlockList.hpp" />
        <Unit filename="Camera2D.cpp" />
        <Unit filename="Camera2D.hpp" />
        <Unit filename="Camera3D.cpp" />
        <Unit filename="Camera3D.hpp" />
        <Unit filename="Entity.hpp" />
        <Unit filename="Includes.hpp" />
        <Unit filename="RenderInfo.cpp" />
        <Unit filename="RenderInfo.hpp" />
        <Unit filename="Renderer.cpp" />
        <Unit filename="Renderer.hpp" />
        <Unit filename="Scene.cpp" />
        <Unit filename="Scene.hpp" />
        <Unit filename="TextureAtlas.cpp" />
        <Unit filename="TextureAtlas.hpp" />
        <Unit filename="dr.hpp" />
        <Unit filename="isoMap.cpp" />
        <Unit filename="isoMap.hpp" />
        <Extensions>
            <envvars />
            <code_completion />
            <lib_finder disable_auto="1" />
            <debugger />
            <DoxyBlocks>
                <comment_style block="0" line="0" />
                <doxyfile_project />
                <doxyfile_build />
                <doxyfile_warnings />
                <doxyfile_output />
                <doxyfile_dot />
                <general />
            </DoxyBlocks>
        </Extensions>
    </Project>
</CodeBlocks_project_file>