Solved Can Qt 5.6 Creator and Qt 5.7 Creator coexist in different Qt directories?
I had Qt 5.6 (32bits) installed with Qt 5.6 Creator working in Ubuntu 14.04 (32 bits).
I installed Qt 5.7 PPA as I discussed in another thread.
At the point of installing Qt 5.7 Creator I was informed that Qt 5.6 Creator was to be uninstalled (it seems that the two versions of Qt Creator cannot coexist). I agreed and continued to complete Qt 5.7 installation, which purged Qt 5.6 Creator.
Later I tried to re-install Qt 5.6 Creator back into Qt 5.6 through Ubuntu Software Centre but saw this
Package dependencies cannot be resolved This error could be caused by required additional software packages which are missing or not installable. Furthermore there could be a conflict between software packages which are not allowed to be installed at the same time. Details: The following packages have unmet dependencies: qt56creator: Depends: libgcc1 (>= 1:4.1.1) but 1:4.9.3-0ubuntu4 is to be installed Depends: libstdc++6 (>= 4.8) but 4.8.4-2ubuntu1~14.04.1 is to be installed
So the summary is I now have these two installations
Qt 5.6 Creator (uninstalled during installing Qt 5.7)
Qt 5.7 Creator .. launches and works
Qt 5.6 Designer .. launches and works
Qt 5.7 Designer .. launches and works
Running qtchooser -list-versions
I get this returned
default opt-qt56 opt-qt57
Can Qt 5.6 and 5.7 Creator co-exist in /opt/qt56 and /opt/qt57?
jsulm Lifetime Qt Champion last edited by
They can coexist, but you could get some problems with settings if the versions are too different.
But you can specify which settings to use:
qtcreator -settingspath ~/.config/QtProject1