I am trying to install RMySQL on my mac (mavericks) and it errors out when I try to build it from source, saying:
Configuration error: could not find the MySQL installation include
and/or library directories. Manually specify the location of the
MySQL libraries and the header files and re-run R CMD INSTALL.
INSTRUCTIONS:
Define and export the 2 shell variables PKG_CPPFLAGS and PKG_LIBS to include the directory for header files (*.h) and
libraries, for example (using Bourne shell syntax):
export PKG_CPPFLAGS="-I"
export PKG_LIBS="-L -lmysqlclient"
Re-run the R INSTALL command:
R CMD INSTALL RMySQL_.tar.gz
I tried to follow the instructions by entering:
export PKG_CPPFLAGS="-I/usr/local/mysql/include" export
PKG_LIBS="-L/usr/local/mysql/lib -lmysqlclient"
but when I re-run RMySQL it still doesn't work. Moreover, if I type
$PKG_LIBS
to see what that variable holds, I get
-bash: -L/usr/local/mysql/lib: No such file or directory'
I know that /usr/local/mysql/lib exists and it does contain a mySQL header. Am I misunderstanding the instructions?
I'm asking here only after a lot of effort to find solutions and/or work arounds. Sucks being a noob sometimes.
I am going to assume you're trying to get RmySQL to run on R 3.1.0 on Mavericks? Rather than worry about exporting variables etc, here is a simple clean solution for you that should avoid the headaches.
The RMySQL install link Pascal provided above really is your solution. You're probably just stumbling on syntax, or getting things to work from the terminal.
Even if you're a "noob", you should be able to get this working. I'll try to offer a "dummy's guide" walk through here, as I bet there are many others who have this problem too, even after trying to read the RMySQL installation readme.
I would bet with very high confidence the problem is just that you aren't specifying correctly the locations of the library and header folders for compiling. Read the errors carefully when you try to compile... the errors will probably tell you a file/header is missing, or some .so file (shared object) is missing.
One simple way compile RMySQL from source on R 3.1.0, mavericks is as follows (this does not require you to set any environmental variables, no editing of the Renviron file, etc):
Does MySQL work by itself? i.e. Can you open/run it no problems? If not, fix that first.
Find the precise location of your mysql installation. For me, on Mavericks, I see mysql installed at /usr/local/mysql-5.6.17-osx10.7-x86_64 (your version number may be different). There is also another folder /usr/local/mysql which is an alias to /usr/local/mysql-5.6.17-osx10.7-x86_64 (/usr/local/mysql finds the current version of mysql you are using, if multiple mysql file folders exist, I think). In this directory, I see two sub directories (among many) called "include" and "lib". Take a look; "include" will contain header files (include as in #include , etc, in simple C++ programs). The "lib" folder contains compiled source code of the mysql library.
An easy way to compile and install RMySQL which doesn't exactly follow the suggested way to do it in the installation guide is this. Note that this is doing the same thing as in the installation guide, just a little easier as it's one command line from the terminal, once you know where your mysql install folder is. Go to the terminal, and type the following exactly, with one space between each chunk (with your mysql folder name adjusted appropriately for the version number):
PKG_CPPFLAGS="-I/usr/local/mysql/include/" PKG_LIBS="-L/usr/local/mysql/lib/ -lmysqlclient" R CMD INSTALL RMySQL_0.9-3.tar.gz
OR (the same thing, just more typing)
PKG_CPPFLAGS="-I/usr/local/mysql-5.6.17-osx10.7-x86_64/include/" PKG_LIBS="-L/usr/local/mysql-5.6.17-osx10.7-x86_64/lib/ -lmysqlclient" R CMD INSTALL RMySQL_0.9-3.tar.gz
Note for dummies: Make sure when you run this command, that you are doing it from the terminal in the directory that contains the RMySQL_0.9-3.tar.gz file (or whatever the name of your folder is that contains the RMySQL source code)
and RMySQL compiles!
Don't be afraid about trying to compile source code -- it's not just for 'compiled language programmers' or 'computer science graduates'. Most of the time when compiling fails it's just because files are "missing" (there is no corruption on the source code) -- the user hasn't properly specified the locations of the header and libraries (shared objects). Now pull your big boy/girl panties up and just do it .... it's easy.
Notes for people clueless about compiling source code for packages in R:
a) pay special attention to the spacing in the above, otherwise it may not work. Do not have any spaces between the = and the variable/file names (e.g. don't try and have in the above PKG_CPPFLAGS ="-I/usr/local/mysql/include/" as it won't work)
b) When compiling, you want to specify the locations of the header files and the library files and this is what the "-I/ .... " and "-L/ ...." are doing. The -I directory specifies the location of the header files, and the -L the location of the library files. The library files also require the -l[name of library] extension (the -l is short for -lib in the library object names).
c) Note that in the directory /usr/local/mysql-5.6.17-osx10.7-x86_64/lib/ I do not see a file called "lmysqlclient", or even "libmysqlclient", but I do see files named (among others) "libmysqlclient.a" and "libmysqlclient.18.dylib". So don't worry about your MySQL installation not being correct if you don't see a file just called "libmysqlclient" in the lib folder.
I am using SonarQube 4.0 . I try to created a project and run sonar-runner successfully I could see most metrics there.
But when I try to add widgets for LCOM4, RFC and Package design (to show the package tangle index), it shows "No data".
I am not sure what's wrong with my configuration, should I turn on some configuration or install some additional plugins to show LCOM4, RFC and Package tangle index?
I am running sonar-runner on plain file folder (not from SCM , didn't have POM file) , not certain if this is the cause.
If anyone has idea about this problem?
You must analyze .class files.
If you have not already done it, here is the parameter to add to your analysis configuration
# Comma-separated paths to directories with binaries (optional), in case of Java - directories with class files
sonar.binaries=build/classes
I'm using starkit/starpack with tcl8.5 and expect 5.44.1.15 under linux, after creating the starkit and putting the directory for expect under lib directory of the created vfs directory and wrap it back to starkit file, I could create the starpack file, after checking that everything's working fine on my linux system, I use this standalone file on another linux system but there, it doesn't work and I have this error :
couldn't load file "/tmp/tclJ4M144": /lib/libc.so.6: version `GLIBC_2.7' not found (required by /tmp/tclJ4M144)
so trying to solve this, I've removed expect 5.44.1.15 directory from vfs directory and replaced it with expect 5.43 taken from the target linux system (where my standalone starpack file didn't work), I've also adapted its pkgIndex file before recreating the starkit and then the starpack, but this time I have this error :
segmentation fault
Anyone can help me on this ? What do I need to do to make it work on the target linux system ?
Thank you.
I have a problem with running tesseract-ocr engine on linux. I've downloaded RUS language data and put it to tessdata directory (/usr/local/share/tessdata). When I'm trying to run tesseract with command tesseract blob.jpg out -l rus , it displays an error:
Error opening data file /usr/local/share/tessdata/eng.traineddata
Please make sure the TESSDATA_PREFIX environment variable is set to the parent directory of your "tessdata" directory.
Failed loading language eng
Tesseract couldn't load any languages!
Could not initialize tesseract.
According to compiling guide, I used export TESSDATA_PREFIX='/usr/local/share/'
to point my tessdata directory.
Maybe I should edit any config files? Tesseract try to load 'eng' data files instead of 'rus'.
Screenshot:
http://i.stack.imgur.com/I0Guc.png
You can grab eng.traineddata Github:
wget https://github.com/tesseract-ocr/tessdata/raw/main/eng.traineddata
Check https://github.com/tesseract-ocr/tessdata for a full list of trained language data.
When you grab the file(s), move them to the /usr/local/share/tessdata folder. Warning: some Linux distributions (such as openSUSE and Ubuntu) may be expecting it in /usr/share/tessdata instead.
# If you got the data from Google, unzip it first!
gunzip eng.traineddata.gz
# Move the data
sudo mv -v eng.traineddata /usr/local/share/tessdata/
The simpliest way is to install the needed package:
sudo apt-get install tesseract-ocr-eng #for english
sudo apt-get install tesseract-ocr-tam #for tamil
sudo apt-get install tesseract-ocr-deu #for deutsch (German)
As you can notice, it opens the road to others languages (i.e. tesseract-ocr-fra).
I had this error too on the Windows machine.
My solution.
1) Download your language files from
https://github.com/tesseract-ocr/tessdata/tree/3.04.00
For example, for eng, I downloaded all files with eng prefix.
2) Put them into tessdata directory inside of some folder. Add this folder into System Path variables as TESSDATA_PREFIX.
Result will be
System env var: TESSDATA_PREFIX=D:/Java/OCR
And OCR folder has tessdata with languages files.
This is a screenshot of the directory:
No previous solution worked for me.
I've installed both by apt-get and manually downloading the tessdata, moved around /usr and so on and no one worked even if i exported the variable thousand times.
Finally, on a last try before start to cry i've tried to pass the path directly to the instance of Tesseract().
In Python: tr = Tesseract("/usr/local/share/tesseract-ocr/") and now it works. To clarify, im using tesserwrap module.
For Windows Users:
In Environment Variables, add a new variable in system variable with name "TESSDATA_PREFIX" and value is "C:\Program Files (x86)\Tesseract-OCR\tessdata"
tesseract --tessdata-dir <tessdata-folder> <image-path> stdout --oem 2 -l <lng>
In my case, the mistakes that I've made or attempts that wasn't a success.
I cloned the github repo and copied files from there to
/usr/local/share/tessdata/
/usr/share/tesseract-ocr/tessdata/
/usr/share/tessdata/
Used TESSDATA_PREFIX with above paths
sudo apt-get install tesseract-ocr-eng
First 2 attempts did not worked because, the files from git clone did not worked for the reasons that I do not know. I am not sure why #3 attempt worked for me.
Finally,
I downloaded the eng.traindata file using wget
Copied it to some directory
Used --tessdata-dir with directory name
Take away for me is to learn the tool well & make use of it, rather than relying on package manager installation & directories
For me the problem was in how I downloaded the train data files. Make sure you get the raw link.
Initially I was using:
wget https://github.com/tesseract-ocr/tessdata_best/blob/master/eng.traineddata
When I changed it to:
wget https://github.com/tesseract-ocr/tessdata_best/raw/master/eng.traineddata
It worked
For Ubuntu just run the below command and the Environment variable error will disappear.
command:
export TESSDATA_PREFIX=Path_of_your_tessdata_folder
Command Example:
export TESSDATA_PREFIX=/home/amar/Desktop/OCR/tesseract-4.1.1/tessdata
This command will set the tessdata folder's path to the environment variable with name TESSDATA_PREFIX and the above error will be resolved.
You can call tesseract API function from C code:
#include <tesseract/baseapi.h>
#include <tesseract/ocrclass.h>; // ETEXT_DESC
using namespace tesseract;
class TessAPI : public TessBaseAPI {
public:
void PrintRects(int len);
};
...
TessAPI *api = new TessAPI();
int res = api->Init(NULL, "rus");
api->SetAccuracyVSpeed(AVS_MOST_ACCURATE);
api->SetImage(data, w0, h0, bpp, stride);
api->SetRectangle(x0,y0,w0,h0);
char *text;
ETEXT_DESC monitor;
api->RecognizeForChopTest(&monitor);
text = api->GetUTF8Text();
printf("text: %s\n", text);
printf("m.count: %s\n", monitor.count);
printf("m.progress: %s\n", monitor.progress);
api->RecognizeForChopTest(&monitor);
text = api->GetUTF8Text();
printf("text: %s\n", text);
...
api->End();
And build this code:
g++ -g -I. -I/usr/local/include -o _test test.cpp -ltesseract_api -lfreeimageplus
(i need FreeImage for picture loading)
I'm using windows OS, I tried all solutions above and none of them work.
Finally, I install Tesseract-OCR on D drive(Where I run my python script from) instead of C drive and it works.
So, if you are using windows, run your python script in the same drive as your Tesseract-OCR.
In Google Colab I resolved the issue in this way:
!sudo apt-get install tesseract-ocr-*
Because if you use this command !sudo apt install tesseract-ocr then it imports 2 languages but when you intend to work on non-English languages then the former command works.
Afterwards, use this command !pip install pytesseract
You can also check languages in this way !tesseract --list-langs
I'm using Visual Studio 2017 Community Edition.
I solved this problem by making a directory called tessdata in the Debug directory of my project. Then I put the eng.traineddata file into said directory.
C# developer working on Windows here. What works for me is simply download the file eng.traineddata from the following URL:
https://github.com/tesseract-ocr/tessdata/blob/master/eng.traineddata
and copy it to the following directory in my Console Application project:
[Project Directory]\bin\Debug\tessdata
I did manually create the tessdata folder above.
tessdata_dir_config = r'--tessdata-dir "/usr/local/Cellar/tesseract/4.1.1/share/tessdata"'
pytesseract.image_to_string(imgCrop,lang='eng',config=tessdata_dir_config)
Add this to your code :
instance.setDatapath("C:\\somepath\\tessdata");
instance.setLanguage("eng");
How I solved the problem in my Manjaro Xfce:
Message “TesseractError: (1, 'Error opening data file /home/julio/snap/tesseract/common/eng.traineddata Please make sure the TESSDATA_PREFIX environment variable is set to your "tessdata" directory. Failed loading language 'eng' Tesseract couldn't load any languages! Could not initialize tesseract.')”
Then, in my Manjaro, I typed: sudo pacman -S tesseract
Then the system installed both the “tesseract” and also a package name “leptonica”
After this step, I thought everything was ok, and tried to run my simple script. However, the error message changed to something like this (it changed the previous “/home” location to other “/usr”-like location):
“"Please make sure the TESSDATA_PREFIX environment variable is set to your "tessdata" directory. Failed loading language 'eng' Tesseract couldn't load any languages! Could not initialize tesseract.')"”
Then I realized that there had appeared this message when I installed “tesseract” with pacman: “You must install one of tesseract-data-* packages or whole tesseract-data group”
So, I tried the command: “sudo pacman -S tesseract-data”, and the system presented lots of language options to me. So I’ve chosen some languages, installed as follows, and the module started to work like a charm:
sudo pacman -S tesseract-data-eng
sudo pacman -S tesseract-data-por
sudo pacman -S tesseract-data-fra
sudo pacman -S tesseract-data-spa
I tried some portuguese special characters (like "ão"), that only worked when I used the argument "lang='por'" in the pytesseract.image_to_string(img,lang='por')
As of 2021, My solution for Ubuntu is to download the zip files from https://github.com/tesseract-ocr/tessdata_best/releases/tag/4.1.0, extract and copy the neccessary .traineddata files into /usr/local/share/tessdata. This is the default folder for tesseract 4.1.1 to search for trained data.
I had the same problem with DEU language on macOS. I could solve it by installing all additional languages like so:
brew install tesseract-lang
as suggested on https://formulae.brew.sh/formula/tesseract
**IF you have windows OS then please add your TesseractOCR to system variable.
Eg..
Find the path where Tesseract is installed in your c drive (in my case r"C:\Program Files\Tesseract-OCR\tesseract.exe")**
2)make sure you have the required files ie tessdata, tessdata if not then download it from https://github.com/tesseract-ocr/tessdata https://github.com/tesseract-ocr/langdata (At least those languages which you want to convert)
past it into the main directory in my case C:\Program Files\Tesseract-OCR
4)Add the path of the directory to your system environment variable
for that
search environment variable in start bar
go to environment variable
click path in your system environment variable (NOT IN USER ENVIRONMENT VARIABLE)
past the path of tesseractocr
thats all...
I try to commit a folder hierarchy into out Mercurial repository, which contains files, whiches absolute path length exceeds 255 characters (Windows max. path length).
For these files I receive an error message saying
The system cannot find the path specified
We use TortoiseHG and an Eclipse plugin for Mercurial, both don't work.
Has anybody found a solution for this?
(I do not want to change the repository's location on my HD)
There exists an extension which is aimed at solving this exact problem. It is: https://www.mercurial-scm.org/wiki/Win32LongFileNamesExtension
It uses \\?\ style names to transparently handle long files.
I'm the author, let me know if it works for you.
I've just installed Aaron Cohen' extension, as he suggested.
And it perfectly works with my TortoiseHG 2.6.1 ! Thanks, Aaron!
Though, I'd like to add a detailed guide here, because I cannot find one...
(At least here's what I did on my Win7 x64 - I'm not sure this is the shortest way possible)
1. Download Mercurial-py
Note the Python version required
I've downloaded "Mercurial-2.4.2 (64-bit py2.7)"
2. Download Python
Make sure you're downloading compatible version.
I used "Windows X86-64 MSI Installer (2.7.3)" link
3. Install Python
I've installed it to "D:\Python27"
4. Download pywin32
It's required by the Win32LongFileNamesExtension.
Note the Python version number in pywin32's filename.
I used "pywin32-218.win32-py2.7.exe"
5. Install pywin32
Make sure installer detected correct Python installation
In my case, it's installed in "d:\Python27\Lib\site-packages\pywin32_system32\"
6. Install Mercurial
Make sure installer detected correct Python installation
In my case, it's installed in "d:\Python27\Lib\site-packages\mercurial\"
7. Set PYTHONPATH enviroment variable
setx PYTHONPATH d:\Python27\Lib\site-packages\win32lfn\src;d:\Python27\Lib\site-packages\mercurial\
Use this cli command, or do the same using some other method
Of course, you should adapt paths to your needs
Restart your cli after this, to make sure env. variable is now properly set
8. Download win32lfn
Check for availible downloads on the project's repository page
If there's still nothing, just clone a repository from https://bitbucket.org/remleduff/win32lfn to "d:\Python27\Lib\site-packages\win32lfn\"
Now "win32lfn.pyc" should be in "d:\Python27\Lib\site-packages\win32lfn\src\"
9. Do interanal win32lfn tests
cd /D D:\Python27
python d:\Python27\Lib\site-packages\win32lfn\tests\testwin32lfn.py
10. Create a backup of your repository.
For me, everything went just fune, but you never know....
11. Add win32lfn to hgrc
[extensions]
win32lfn = d:\Python27\Lib\site-packages\win32lfn\src\win32lfn.py
you can find "hgrc" in your ".hg" folder, inside your repository
12. Test it!
The quick and dirty solution is to map a network drive.
For the path c:\some long path\project folder
Map \\localhost\c$\some long path\ to drive Z:\
cd z:\project folder
hg push
We are using this successfully as an interim solution, before migrating to shorter paths.
The mercurial plugins above look good but unfortunately there are numerous non-mercurial bugs related to path greater than 255 characters. For example the VS2010 failure at exactly 259 characters is a real corker!
http://support.microsoft.com/kb/2516078
See https://www.mercurial-scm.org/wiki/Win32LongFileNamesExtension (Aaron pointed to it via the mercurial-devel mailing list).
Another workaround without changing the path to the repo could be to create a second path to it by means of directory junction points. It may work because the reparsing is done at a very low level by the file system driver (or rather some installed filter), so the full (Unicode) path is known by that time and the expansion to beyond 260 characters should work fine. Give it a try. You can use the tool mklink on Windows Vista or 7 and junction.exe from Sysinternals on Windows 2000 or later. For mklink make sure to create a junction point. I'm not sure the reparsing mechanism works the same for directory symlinks (although I faintly remember that it should).
If you don't have a Unicode version of the program available, the limit is 260 characters (including drive letter part). There is nothing to get around it.
However, all ANSI functions are implemented by means of their Unicode counterpart and therefore you may get lucky by providing the full path prepended with \\?\. This may work, but likely won't because the program itself didn't consider anything beyond MAX_PATH (= 260). Ask the author to compile a Unicode version and use the prefix I mentioned. This will fix the issue.
This is a limit of the Win32 subsystem. The absolute path length limit is approximately 32,767 characters. Approximately because the object manager of Windows may expand it (symlinks in the object namespace and the likes).
Windows 10 system running the mercurial 4.4.1 client
Aaron Cohen extension will work I did need make a small one small tweak
based on a comment from mhaecki on this thread: https://bitbucket.org/remleduff/win32lfn/issues/13/not-compatible-with-version-431
in the win32lfn.py file I changed:
from mercurial import util, osutil,cmdutil
from mercurial.i18n import _
to:
from mercurial import util, cmdutil
from mercurial.cext import osutil
from mercurial.i18n import _