CODEWITHSUNDEEP
macosdownloadlaunchmacos-mojave
RuLoViC
RuLoViC

Reputation: 855

Qt application for mac not being launched

I am working on an application written in Qt for macOS environment. In order to generate release build i have set up external server.

I am seeing this:

After generating build, if I download and install the application on Applications folder, when opening it, first I see the popup asking if I am sure to open app downloaded from Internet(Gatekeeper), so I click Open and then app dies.

App works fine if I open it from CommandLine in Terminal.

Checking the attributes of app file I can see that it has com.apple.quarantine. If remove it manually, using xattr -dr com.apple.quarantine application opens without any problem

Any ideas about why it is not launched ?? Thanks is advance

Upvotes: 1

Views: 265

Answers (1)

Jean-Michaël Celerier
Jean-Michaël Celerier

Reputation: 7886

I had the same problem with my software and raised a developer incident which allowed to find the root cause:

When launched the first time with the quarantine attribute, Gatekeeper will pass an additional command-line argument. From what I could observe, it is of the form:

-psn_0_<some sequence of numbers>

e.g.

-psn_0_2445909

Qt's QCommandLineParser rejects unknown arguments and calls exit(1); in that case.

Thus it is necessary to filter argc / argv and remove that bogus argument before passing them to Q{Core,Gui,}Application.

Upvotes: 1

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