)
| ^
/lustre/bio_shared/mtrix/qt5/qt5-build/install_dir/include/QtCore/qobject.h:190:14: error: missing binary operator before token "("
190 | #if QT_CONFIG(regularexpression)
| ^
/lustre/bio_shared/mtrix/qt5/qt5-build/install_dir/include/QtCore/qobject.h:477:24: error: missing binary operator before token "("
477 | #if QT_DEPRECATED_SINCE(5, 0)
| ^
In file included from /usr/include/QtCore/qdatastream.h:46,
from /usr/include/QtCore/qmetatype.h:49,
from /lustre/bio_shared/mtrix/qt5/qt5-build/install_dir/include/QtCore/qobject.h:54,
from /lustre/bio_shared/mtrix/qt5/qt5-build/install_dir/include/QtCore/QObject:1,
from qt.h:1,
from qt.cpp:2:
/usr/include/QtCore/qiodevice.h:68:14: error: invalid use of incomplete type class QObject
```
Could you help me?
---
### Author:  [@bjeurissen](https://community.mrtrix.org/u/bjeurissen)
#### Post date: [March 2, 2021, 11:13am UTC](https://community.mrtrix.org/t/installation-problem/4613/2 "2021-03-02T11:13:11Z")
I believe you have the same problem as described here:
> [@ERROR: error compiling Qt application!](https://community.mrtrix.org/t/error-error-compiling-qt-application/3007):
>
> Here is part of my configuration file. I’m not sure why this is happening export LD\_LIBRARY\_PATH=/usr/local/qt-5.6.2/5.6/gcc\_64/lib:/usr/local/gcc-4.9.4/lib/../lib64:/usr/local/mpc-1.0.2/lib/:/usr/local/mpfr-3 .1.5/lib/:/usr/local/gmp-6.1.2/lib/:$LD\_LIBRARY\_PATH (base) [root@c2004 ylu]# export PATH=/usr/local/qt-5.6.2/5.6/gcc\_64/bin/:$PATH (base) [root@c2004 ylu]# cd /usr/local/mrtrix3 (base) [root@c2004 mrtrix3]# CXX=/usr/local/gcc-4.9.4/bin/g++ ./configure int main() { Foo f; } --…
That said, it appears as if you are trying to install mrtrix on a high-performance computing cluster. Note that, unless you have VNC access to this machine, you probably won’t be able to (comfortably) use MRview remotely on that machine. Instead of running `./configure` you could simply run`./configure -nogui` which will skip configuring and building the GUI commands, MRView and SHView, which are the ones that rely on QT. You can then install mrtrix on your own computer and use MRView locally to inspect and visualize your results.
---
### Author:  [@amonaco](https://community.mrtrix.org/u/amonaco)
#### Post date: [March 2, 2021, 2:22pm UTC](https://community.mrtrix.org/t/installation-problem/4613/3 "2021-03-02T14:22:40Z")
It works! thank you so much