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I'm trying to build sdrangelove, which wants Qt 5 and uses CMake for its build system, on Ubuntu 13.10. What package do I need to install to give it the file it's asking for here?

There are a lot of *qt5* packages, and I've tried installing the promising looking ones to no effect. All the discussions I've found either have things working fine or are talking about writing CMake build rules rather than executing them. I don't have a lot of experience with the organization of Debian/Ubuntu packaging.

CMake Error at CMakeLists.txt:14 (find_package):
  By not providing "FindQt5Core.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "Qt5Core", but
  CMake did not find one.

  Could not find a package configuration file provided by "Qt5Core"
  (requested version 5.0) with any of the following names:

    Qt5CoreConfig.cmake
    qt5core-config.cmake

  Add the installation prefix of "Qt5Core" to CMAKE_PREFIX_PATH or set
  "Qt5Core_DIR" to a directory containing one of the above files.  If
  "Qt5Core" provides a separate development package or SDK, be sure it has
  been installed.
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1 Answer 1

up vote 3 down vote accepted

Two things I was missing:

  • After an unsuccessful build, I must remove CMakeCache.txt (or simply clear the build directory); otherwise cmake will report the same error even if the needed package has been installed.

  • The packages which provide the *.cmake configuration files have names of the form qt*5-dev, e.g. for the error in my question, qtcore5-dev.

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