I have a notebook in Google Colab I am trying to use run a windows program, but I always get the same library error:
ERROR: ld.so: object '/usr/lib/x86_64-linux-gnu/libtcmalloc.so.4' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
I have tried to !find libtcmalloc.so.4 libtcmalloc-minimal4 but never seem to locate the library I need anywhere on the system. I had assumed that libtmalloc was installed with libgoogle-perftools-dev but I guess not?
Related
From the linux console I run a windows console tool using:
wine console_tool.exe ....
The console tool does not involve any windows. It's output is just textual.
Some output is added repeatedly after a given delay time.
However, besides the output of the console_tool.exe I get repeatedly the following error message also interleaved with the other output:
ERROR: ld.so: object 'libgtk3-nocsd.so.0' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
I already tried to export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libgtk3-nocsd.so.0 but then the only change is that the error message changes:
ERROR: ld.so: object '/usr/lib/x86_64-linux-gnu/libgtk3-nocsd.so.0' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
I also attempted to apt install the :i386 version of the libgtk3-nocsd.so.0 but it doesn't seem to exists.
I don't know why a console application may trigger a gtk error message. This is beyond my knowledge.
My preferred goal would be to tell wine that the .exe does not use windows and it does not need to not use gtk for windows emulation at all. However, as this may not be possible, my second preferred goal would be to solve the gtk issue.
Can you help me achieve at least one of those goals?
I do not know what the error messages mean. However, the wineconsole command runs console executable using wine. Example:
wineconsole console_tool.exe
I am using JupyterLab as my IDE and I have a couple of packages installed. Namely, the 'jupyterlab-dash' and 'juptyerlab-plotly' packages. My issue is when I go to launch 'juptyer lab' from terminal, I notice the following error:
Failed to fetch package metadata for 'jupyterlab-dash': URLError(gaierror(8, 'nodename nor servname provided, or not known'))
I'm not sure why this error is popping up but I've noticed this error only pops up when I have no internet connection (working on a train etc.). Could it be because these packages are trying to call something as I launch and because I don't have an internet connection it raises the error?
In the end I am able to use JupyterLab and the packages as intended (at-least it seems), but I'm curious why this error to 'fetch metadata' appears?
Thanks,
I have a python application that uses QT5.
I'm generating a binary for this app with pyinstaller (so that all the dependencies are bundled). This app is built from a Centos6.8 docker instance (for compatibility reasons) with a patched-in GLIBC that QT5 needs.
When I run the application it fails with the bundled libQt5Dbus.so.5 not having the symbol dbus_connection_can_send_type:
symbol lookup error: /tmp/_MEIyxSbsB/libQt5DBus.so.5: undefined symbol: dbus_connection_can_send_type
When I do nm -D /path/to/libQt5Dbus.so.5 on the Centos6.8 docker instance doesn't show the symbol I need (dbus_connection_can_send_type).
What can I do to get the symbol in a libQt5Dbus.so.5?
EDIT:
I have found that one of the libQt5Dbus.so.5 library in my system does actually have dbus_connection_can_send_type symbol. I've replaced all libQt5Dbus.so.5 libraries with the one that does have the symbol and I still get the error.
The problem I had was the minimum GLIBC required by QT5 (GLIBC 14) does not define the symbol dbus_connection_can_send_type (among others).
Upgrading it to GLIBC 17 makes it work again.
On "./configure" of an open source project I get:
user agent OS = Linux
./configure: line 13957: syntax error near unexpected token 0.9.3'
./configure: line 13957: GOBJECT_INTROSPECTION_CHECK(0.9.3)'
make: *** [config.status] Error 2
Ubuntu 12.04 package "gobject-introspection" and "libgirepository1.0-dev" are present. Removing the GOBJECT_INTROSPECTION_CHECK line allows configure to complete, but the project fails a dependency later.
How can I get past this configure step cleanly? Googling for this issue shows bugs filed against numerous OS projects for this same blocking issue, but the usual answer is "install gobject-introspection".
As the OP discovered on his own he had to install the gobject-introspection package to get the m4 macros that were being used.
The error message has the raw macro in it, as configure scripts are generated from configure.in/configure.ac files via m4/etc the fact that the raw macro is in the output file indicates that the macro did not get translated at generation time.
The gobject-introspection m4 files were apparently installed after autogen.sh (or equivalent) was run to generate the configure script. Re-running the autogen.sh script should regenerate the configure script and run the macro correctly.
I have used QCA (qca-2.0.1-mingw) library for encryption.
I have searched some code and write into the application. But it does not support the AES encryption standard.
e.g
QCA::supportedFeatures();
QCA::isSupported("aes128-cbc-pkcs7");
shows the o/p
("random", "md5", "sha1", "keystorelist")
false
Why AES is not supported ?
Thanx.. Frank and elmigranto
now, i have download qca-ossl-2.0.0-beta3 form link and also install the OpenSSl(Win32OpenSSL-1_0_0j.exe).then i build it by follows this link
configwin rd
Configuring for release and debug, dynamic
Wrote conf_win.pri
qmake
C:\qca-ossl-2.0.0-beta3>qmake
'qmake' is not recognized as an internal or external command,
operable program or batch file.
Also when i build the qca-ossl.pro file it shows o/p as:
c:\qca-ossl-2.0.0-beta3\qca-ossl.pro:17: warning: Unable to find file for inclusion winlocal.prf
what to do next? pls help me guys..