OS X - Designer cannot be opened because of a problem

nbro

I would like to use the Designer.app that came with my Qt installation to create user interfaces for PyQt, but when I try to run it, I have the following crash and error messages:

Process:               Designer [953]
Path:                  /Users/USER/*/Designer.app/Contents/MacOS/Designer
Identifier:            com.trolltech.Designer
Version:               ???
Code Type:             X86-64 (Native)
Parent Process:        ??? [1]
Responsible:           Designer [953]
User ID:               501

Date/Time:             2015-08-20 13:57:25.640 +0200
OS Version:            Mac OS X 10.10.5 (14F27)
Report Version:        11
Anonymous UUID:        112E84A5-58E2-6257-3813-5BD1BF336045


Time Awake Since Boot: 640 seconds

Crashed Thread:        0

Exception Type:        EXC_BREAKPOINT (SIGTRAP)
Exception Codes:       0x0000000000000002, 0x0000000000000000

Application Specific Information:
dyld: launch, loading dependent libraries

Dyld Error Message:
  Library not loaded: @loader_path/../../../../lib/libQtDesignerComponents.4.dylib
  Referenced from: /Users/USER/*/Designer.app/Contents/MacOS/Designer
  Reason: image not found

Binary Images:
    0x7fff6c29a000 -     0x7fff6c2d0887  dyld (353.2.3) <B1B370A5-479F-3533-8AD7-97B687D4F989> /usr/lib/dyld

Model: MacBookPro11,2, BootROM MBP112.0138.B15, 4 processors, Intel Core i7, 2.2 GHz, 16 GB, SMC 2.18f15
Graphics: Intel Iris Pro, Intel Iris Pro, Built-In
Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1600 MHz, 0x80AD, 0x484D54343147533641465238412D50422020
Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1600 MHz, 0x80AD, 0x484D54343147533641465238412D50422020
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x134), Broadcom BCM43xx 1.0 (7.15.166.24.3)
Bluetooth: Version 4.3.6f3 16238, 3 services, 18 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en0
Serial ATA Device: APPLE SSD SM0512F, 500.28 GB
USB Device: Internal Memory Card Reader
USB Device: BRCM20702 Hub
USB Device: Bluetooth USB Host Controller
USB Device: Apple Internal Keyboard / Trackpad
Thunderbolt Bus: MacBook Pro, Apple Inc., 17.1

Basically this crash happens immediately after I click on Designer.app inside my Qt installation at the following path:

/Users/me/Qt/5.4/clang_64/bin/Designer.app

From withinQt Creator this problem does not arise, that is if I create for example a Qt Widgets Application from within Qt Creator, I can normally use the designer, but I need to launch it separately to create the .ui definitions for PyQt, which I have just installed within a virtualenv.

My version of Qt is 5.4.
My OS is OS X Yosemite, version 10.10.5.

If you need more information, make me know.

SGaist

Hi and welcome to devnet,

Can you try with Qt 5.5 ?

nbro

Thanks!

Well, it is quite a mess uninstalling (or removing) an app from OS X, mostly because of symbolic links, if any. I would prefer to stick with the current version, if possible.

nbro

@SGaist I had once Anaconda installed, but I have deleted it. Now, when I try to locate libQtDesignerComponents.4.dylib (using locate libQtDesignerComponents.4.dylib), which seems to be what is missing, I have the following output:

/Users/cell/anaconda/lib/libQtDesignerComponents.4.dylib
/Users/cell/anaconda/pkgs/qt-4.8.6-0/lib/libQtDesignerComponents.4.dylib
/Users/cell/anaconda/pkgs/qt-4.8.6-2/lib/libQtDesignerComponents.4.dylib
/Users/cell/anaconda/pkgs/qt-4.8.6-3/lib/libQtDesignerComponents.4.dylib

Which is really strange, since I do not have anaconda anymore. This seems to me some kind of linking error, and that there are still some symlinks pointing to anaconda.

What do you think? How can I remove this symlinks (if they are effectively symlinks)?

SGaist

That's Qt 4, it should have no impact on your problem with designer

nbro

@SGaist Yes, but it is strange that when I dolocate libQtDesignerComponents.4.dylib, I receive the output I mentioned above.

Apparently, this libQtDesignerComponents.4.dylib is really missing, and I don't know why...

SGaist

Is it really the Designer app that comes with the Qt 5.4 SDK ?

nbro

@SGaist The following is my current directory: /Users/cell/Qt/5.4/clang_64/bin, and if I Iist it using ls:

Assistant.app
Designer.app
Linguist.app
QMLViewer.app
lconvert
lrelease
lupdate
macchangeqt
macdeployqt
moc
pixeltool.app
qcollectiongenerator
qdbus
qdbuscpp2xml
qdbusviewer.app
qdbusxml2cpp
qdoc
qhelpconverter
qhelpgenerator
qlalr
qmake
qml.app
qml1plugindump
qml2puppet.app
qmlbundle
qmleasing
qmlimportscanner
qmllint
qmlmin
qmlplugindump
qmlprofiler
qmlscene
qmltestrunner
qt.conf
qtdiag
qtpaths
rcc
syncqt.pl
uic
xmlpatterns
xmlpatternsvalidator

Now, if I output the contents of Designer.app:

Designer.app/
└── Contents
    ├── Info.plist
    ├── MacOS
    │   └── Designer
    ├── PkgInfo
    └── Resources
        ├── designer.icns
        ├── empty.lproj
        └── uifile.icns

3 directories, 6 files

If I try to run the executable Designer, I get the following error, which seems to be the same as the one in the crash, that is the miss of libQtDesignerComponents.4.dylib

dyld: Library not loaded: @loader_path/../../../../lib/libQtDesignerComponents.4.dylib
  Referenced from: /Users/cell/Qt/5.4/clang_64/bin/Designer.app/Contents/MacOS/./Designer
  Reason: image not found
Trace/BPT trap: 5

SGaist

What do you get if your run otool -L Designer ?

nbro

@SGaist said:

otool -L Designer

Designer:
	@loader_path/../../../../lib/libQtDesignerComponents.4.dylib (compatibility version 4.8.0, current version 4.8.6)
	@loader_path/../../../../lib/libQtDesigner.4.dylib (compatibility version 4.8.0, current version 4.8.6)
	@loader_path/../../../../lib/libQtScript.4.dylib (compatibility version 4.8.0, current version 4.8.6)
	@loader_path/../../../../lib/libQtXml.4.dylib (compatibility version 4.8.0, current version 4.8.6)
	@loader_path/../../../../lib/libQtGui.4.dylib (compatibility version 4.8.0, current version 4.8.6)
	@loader_path/../../../../lib/libQtNetwork.4.dylib (compatibility version 4.8.0, current version 4.8.6)
	@loader_path/../../../../lib/libQtCore.4.dylib (compatibility version 4.8.0, current version 4.8.6)
	/usr/lib/libstdc++.6.dylib (compatibility version 7.0.0, current version 52.0.0)
	/usr/lib/libgcc_s.1.dylib (compatibility version 1.0.0, current version 1094.0.0)
	/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 159.1.0)

SGaist

That's a Qt 4 version of Designer, not a 5.4

nbro

@SGaist But why do I have the version 4 of Qt Designer inside the folder of Qt 5.4?

SGaist

Well, that I don't know, but it's clearly not the right version of Designer. Did you use brew to install stuff ?

nbro

@SGaist I have closed the terminal and opened it again and run your command again, but now I have the following output:

error: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/otool: can't open file: Designer (No such file or directory)

nbro

@SGaist Also, I think this cannot be a problem related to the version of Designer, since I can use it normally from Qt Creator.

SGaist

Since you closed the terminal you first have to go again in the folder where Designer is located

Qt Creator has a designer plugin which is not the same thing as the Designer application

nbro

@SGaist Yes, and I am having the same output, which seems that the standalone Designer.app that comes with my Qt 5.4 distribution is for Qt 4.8, which is really strange.

I am not sure if I had used brew to install something, but running brew list does not show apparently any packages or programs related to Qt:

clang-format
cmake
cscope
dmd
dub
freetype
gdbm
jpeg
libpng
libtiff
little-cms
mercurial
openssl
pcre
pkg-config
portmidi
sdl
sdl2
sdl_image
sdl_mixer
sdl_ttf
tree
webp
wget
zsh

SGaist

That really strange…

The output of brew list doesn't seem suspicious

I just verified with 5.5 and it's all ok

nbro

At the end, I decided to uninstall Qt 5.4 (using the MaintenanceTool that comes with the program) and install Qt 5.5. For now, the Designer.app works normally.

I have also reinstalled PyQt5 globally instead of on a virtualenv. I have had some problems related to licenses' compatibility, that I solved by commenting 2 statements in the configure.py of PyQt5, before building. This pseudo solution to this problem can be found on the web.

SGaist

There must have a been a strange glitch at some point somewhere...