Question

我正试图通过布隆图的指挥线,为我编造一个Qt应用程序,“它”给我“提供”/usr/bin。我在PATH中给出了Qt/bin的道路。如何将面包车道改为Qt/bin。

提前感谢。

Answer 1

你的问题难以理解,因此,我很想总结一下我所说的话:

There is a qmake installed into /usr/bin/qmake and a different qmake installed in /path/to/Qt/bin/qmake. You want to use the /path/to/Qt/bin/qmake. You have added /path/to/Qt/bin to your PATH environment variable but calling which qmake still returns /usr/bin/qmake.

有几个原因:

The permissions on /path/to/Qt/bin/qmake may not allow you to execute it. Check that ls -l /path/to/Qt/bin/qmake shows that you have x permission.
The permissions on any directory above /path/to/Qt/bin/qmake may not allow you to traverse the directory. If the ls -l output from the previous step worked, this is not your problem.
Make sure /path/to/Qt/bin is one of the first entries in your PATH environment variable. The shell searches directories from the first to the last, in order, to find executables.
If you added the directory to your PATH after running qmake, the shell will have hashed the location of the qmake executable internally as a performance optimization. Executables almost never move during a shell session, so this is a useful way to reduce useless system calls. Check the output of hash -t qmake to see if this is what happened. Or just execute hash -r to force the shell to forget all paths. (This has no serious consequences.)

友情链接