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I installed and tried to use jasper report studio. The first brick wall you hit when you try to create a datasource for your reports is
java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
The forums say I need to install a jar on the classpath. I have no idea how to do this, so the first hurdle is how to get the jar. The only place I can find is this:
http://dev.mysql.com/downloads/connector/j/
but this unfortunately gives you an msi installer, not a jar. I don't want to install stuff, just get the jar.
I have mysql DB installed, had have trawled through the install dir in program files, but can't find the jar.
Anyone know the official (not malware site) way to get hold of the mysql jar? It seems bizarre that its so hard to find.
I have windows 8 64 bit and mysql 5.6.
Go to http://dev.mysql.com/downloads/connector/j and with in the dropdown select "Platform Independent" then it will show you the options to download tar.gz file or zip file.
Download zip file and extract it, with in that you will find mysql-connector-XXX.jar file
If you are using maven then you can add the dependency from the link http://mvnrepository.com/artifact/mysql/mysql-connector-java
Select the version you want to use and add the dependency in your pom.xml file
If you have WL server installed, pick it up from under
\Oracle\Middleware\wlserver_10.3\server\lib\mysql-connector-java-commercial-5.1.17-bin.jar
Otherwise, download it from:
http://www.java2s.com/Code/JarDownload/mysql/mysql-connector-java-5.1.17-bin.jar.zip
Here's a one-liner using Maven:
mvn dependency:get -Dartifact=mysql:mysql-connector-java:5.1.38
Then, with default settings, it's available in:
$HOME/.m2/repository/mysql/mysql-connector-java/5.1.38/mysql-connector-java-5.1.38.jar
Just replace the version number if you need a different one.
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A debian package I made overwrote files belonging to other packages (using --force-overwrite option). I realized this was bad, but after deleting these files from the package, building and reinstalling, it'll delete those files since it think's my package owns those files and no longer needs them.
I need dpkg to forget my package ever knew about those files, such that I can remove/purge/install and without it ever thinking about those files again.
Note that this package is only meant to be deployed on systems I control, not distributed to clients, so tinkering with already installed packages is acceptable, so long as I can get this back to a non-messed up state.
Couldn't find an answer on stackoverflow or here, appreciate any help or links to similar questions I missed.
Found that dpkg stores a list of each installed package's files here:
/var/lib/dpkg/info/mydpkg.list
Appears to be a list of every directory and file installed by the package, eg
/etc/udev
/etc/udev/rules.d
/etc/udev/rules.d/95-serial485-pi3.rules
/etc/udev/rules.d/97-serial485-pi4.rules
Fix: sudo vim /var/lib/dpkg/info/mydpkg.list and delete lines of files I want my package to forget about, therefore not trying to delete when uninstalling (or when installing a new version of the package that doesn't have those files anymore.) Unclear on if it's necessary to delete the lines referencing parent directories (eg /etc/udev and /etc/udev/rules.d above).
Bonus: I found this by using strace on the command that lists these files, finding out where it gets its info from:
strace dpkg-query -L mydpkg
Taken from here:
https://unix.stackexchange.com/questions/200171/where-does-dpkg-l-gather-its-information
We can use some commands that help us to keep the package dependency and remove the package.
Remove the package without removing the dependency.
sudo dpkg -r --force-depends <package_name>
Remove the package including the configuration file and without removing the dependency.
sudo dpkg -P --force-depends <package_name>
I highly don't recommend this thing because sometimes dependency may create an issue in the future.
I always prefer to uninstall all the dependency when I uninstall the package.
If your package is broken then you can use the following command to resolve an issue.
To fix the broken packages
sudo apt install -f
I have answered this question based on this article.
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All the discussions and forums that I have looked at for help point to the following locations:
http://selenium-release.storage.googleapis.com/index.html
http://chromedriver.storage.googleapis.com/index.html
But both the pages are no longer available.
Any other way I can get to download the ChromeDriver.exe?
Thanks in advance!
The downloads are hosted here:
https://sites.google.com/a/chromium.org/chromedriver/downloads
You can download ChromeDriver.exe from the following URL:
http://chromedriver.storage.googleapis.com/index.html
If you want a scripted way to always get the latest version you can get it using a package manager like nuget or NPM
nuget install Selenium.WebDriver.ChromeDriver -ExcludeVersion
Will drop the latests chromedriver in a folder below our current location based on platform, e.g. for windows it would be \Selenium.WebDriver.ChromeDriver\driver\win32\chromedriver.exe
You could do something similar with the latest chromedriver from npm
npm install chromedriver
And if you need a particular version both package manager support version command arguments
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It doesn't matter what I try to install using my package manager(sudo apt-get install whatever), I always get this error.
dpkg: unrecoverable fatal error, aborting:
reading files list for package 'inkscape': Input/output error
E: Sub-process /usr/bin/dpkg returned an error code (2)
I have researched and have tried to rebuild my dpkg status file, and I have also tried to revert to an older version, but it either hasn't worked or I am doing it wrong.
Also, when I try to run the command "sudo apt-get update", I get this error.
The problem started when I lost my internet connection while downloading monodevelop. Any help is greatly appreciated.
I figured out the answer, so I will post it here in case anybody else has the same problem in the future.
NOTE: After this fix, apt-get no longer installs dependencies for me automatically without using the -f flag.
Go into the /var/lib/dpkg directory
Make a backup of the "status" file
Open the status file as root and find the package that causes the error.
In this case, its "PACKAGE: inkscape".
Delete all the text until the next PACKAGE: declaration in the file.
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I've installed CMU Sphynx at Linux Mint 13 (based on Ubuntu 12.04 LTS) and I simply cant' find any examples for:
How to just test how it work in most simple way? I want to launch it from command line and recognize any .wav file. I've read docs but there are just c++ or python examples, no examples for pocketsphynx_continious
Where can I get /dev/dsp devise at Mint? I have installed all dev libs for alsa and pulseaudio - no /dev/dsp at all.
Any help?
To recognize from microphone
pocketsphinx_continuous
To recognize a file (16khz mono 16bit)
pocketsphinx_continuous -infile file.wav
To create /dev/dsp you need to load kernel driver for oss
modprobe snd_pcm_oss
Development libs are for development, not for /dev/dsp. After you installed development libraries, you need to recompile and reinstall sphinxbase. It will detect development libraries and use alsa instead of oss.
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I managed to bork my installation of it while trying to uninstall it. I installed via Muon (Kubuntu), and attempted uninstallation the same way.
I tried apt-get install/remove (on both mysqlserver and mysql), then tried manually removing files, but it just doesn't work. Somewhere it's determining not to regenerate its configs and not reinstall like a fresh install would.
How do i just get rid of everything mysql-related? I'd like to start fresh.
apt-get purge PACKAGENAME should completely remove a package including its configurations. Maybe this works better.
remove leaves behind configuration files. You need to use purge instead. (purge works on both apt-get(8) and dpkg(8).)
I had to copy a default mysql.cnf (obtained via googling) into the /etc/mysql directory. It created debian versions of the config while using "apt-get install mysql-server-5.1", so i'm assuming the installation i was trying to do was just bad. Should have gone rpm i guess.
However using purge DID remove a few other files i didn't know about, so it did help. +1