Libpcre16.so.3 not found

[jekajarkov]

Hi, I done the full install. On a pi2@jessy. All seem be fine. Then I compiled my qt qml app and upload it to the pi. By trying to start it I got the first error libpng not found. So I take a quick research and install the lib. Now I have an error libpcre16.so.3 not found. I also try to google it and install but nothing help.

[synapticvoid]

Hi there, Have you tried to install the libpcre package with apt-get install libpcre3-dev?

[jekajarkov]

Hi,

Thanks for your response. Yes I already install that package, but that's not helped

----- Nachricht beantworten ----- Von: "Robin Penea" notifications@github.com An: "neuronalmotion/qtrpi" qtrpi@noreply.github.com Cc: "jekajarkov" eugenschreiber@hotmail.com, "Author" author@noreply.github.com Betreff: [neuronalmotion/qtrpi] Libpcre16.so.3 not found (#75) Datum: Do., Nov. 23, 2017 09:48

Hi there, Have you tried to install the libpcre package with apt-get install libpcre3-dev?

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[synapticvoid]

Alright, let's roll up our sleeves !

• Try to find if libpcre16.so.3 exists on you system with find /usr/ -name libpcre16.so.3.
• If you have no result, maybe you can find the real lib with find /usr/ -name libpcre16.so*.
• If you have a result for this last search, you can create the symlink yourself with: sudo ln -s <directory of libpcre16.so>/libpcre16.so <directory of lbpcre16.so/libpcre16.so.3

[jekajarkov]

ok thats the steps I done.

try to install the package again. "sudo apt-get install libpcre3-dev" --> libpcre3-dev is already the newest version.

try to find with "find /usr/ -name libpcre16.so.3 --> no result

try to find with "find /usr/ -name libpcre16.so* --> no result

[synapticvoid]

What about installing libpcre16-3 with sudo apt install libpcre16-3?

[jekajarkov]

unfortunately it does not work either.

--> Unable to locate package libpcre16-3

----- Nachricht beantworten ----- Von: "Robin Penea" notifications@github.com An: "neuronalmotion/qtrpi" qtrpi@noreply.github.com Cc: "jekajarkov" eugenschreiber@hotmail.com, "Author" author@noreply.github.com Betreff: [neuronalmotion/qtrpi] Libpcre16.so.3 not found (#75) Datum: Fr., Nov. 24, 2017 09:46

What about installing libpcre16-3 with sudo apt install libpcre16-3?

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[GuillaumeLazar]

• What about a simple Qt Widget application (not a QML application)?
• Your rpi2 jessie OS is updated?

[jekajarkov]

Hi, yes I updated the OS via sudo apt-get update but that not helped. Actually I used a yocto project image. I compiled the application on my Ubuntu system with qtrpi and download it to the pi. Now it's running.

[ucondua]

I made a full qtrpi and get a lot of mistakes, I can not handle this cnd @ d: ~ $ sudo apt install libpcre16-3 Reading package lists ... Done Building dependency tree Reading state information ... Done E: Unable to locate package libpcre16-3

[ucondua]

I install all packages, but QML debugging is enabled. Only use this in a safe environment. This application failed to start because it could not find or load the Qt platform plugin "eglfs" in "".

Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, xcb.

Reinstalling the application may fix this problem. Процесс завершён сигналом

[RobinChap]

You can also try to recompile your eglfs platform If you cross compiled like I did :

cd ~/raspi/qtbase/src/plugin/platforms/eglfs ~/raspi/qt5/bin/qmake make make install

[ucondua]

Hello! I went the other way. I installed the missing libraries and installed sudo apt-get install raspberrypi-ui-mods. It works. It is right? But I have one problem. I installed QtGraphicaleffects and it works for me, but I can not enable the designer to generate an error. What to do? Thank you.

[ucondua]

The graphic effects work! But does not allow to include a graphic designer, an error

"/home/reanon/Qt5.8.0/5.8/gcc_64/bin/qmlplugindump" returned the exit code: 3. Arguments: -nonrelocatable QtGraphicalEffects 1.0. Error parsing dependencies file : illegal value at 0 failed to promethod of qmlimportscanner QQmlComponent: Component is not ready file: ///opt/qtrpi/raspi/qt5pi/qml/typelist.qml: 2: 1: plugin can not be loaded for module "QtGraphicalEffects": '/opt/qtrpi/raspi/qt5pi/qml/QtGraphicalEffects/libqtgraphicaleffectsplugin.so 'is an invalid ELF object (wrong cpu architecture)

What to do?