I have got the following .erlang file in my home directory (Ubuntu):
io:format("executing user profile in home/user/.erlang\n",[]).
code:add_pathz("/media/user/Disk2/Cloud/Workspace/Erlang").
code:add_pathz("/media/user/Disk2/Cloud/Workspace/Erlang/code").
shell_default:cd("/media/user/Disk2/Cloud/Workspace/Erlang").
io:format(".erlang rc finished\n",[]).
I can see that the file is run when I start the Erlang shell in the terminal. What is more, the shell_default:cd-command works fine. However, the code:add_pathz-commands do not. When I try to run anything in the code-directory, I get an "undefined function"-error. Besides, when I list the paths with "code:get_path().", I get:
[".","/usr/lib/erlang/lib/kernel-2.16.4/ebin",
"/usr/lib/erlang/lib/stdlib-1.19.4/ebin",
"/usr/lib/erlang/lib/xmerl-1.3.5/ebin",
"/usr/lib/erlang/lib/wx-1.1.1",
"/usr/lib/erlang/lib/webtool-0.8.9.2/ebin",
"/usr/lib/erlang/lib/typer-0.9.5/ebin",
"/usr/lib/erlang/lib/tv-2.1.4.10/ebin",
"/usr/lib/erlang/lib/tools-2.6.13/ebin",
"/usr/lib/erlang/lib/toolbar-1.4.2.3/ebin",
"/usr/lib/erlang/lib/test_server-3.6.4/ebin",
"/usr/lib/erlang/lib/syntax_tools-1.6.12/ebin",
"/usr/lib/erlang/lib/ssl-5.3.2/ebin",
"/usr/lib/erlang/lib/ssh-3.0/ebin",
"/usr/lib/erlang/lib/snmp-4.25/ebin",
"/usr/lib/erlang/lib/sasl-2.3.4/ebin",
"/usr/lib/erlang/lib/runtime_tools-1.8.13/ebin",
"/usr/lib/erlang/lib/reltool-0.6.4.1/ebin",
"/usr/lib/erlang/lib/public_key-0.21/ebin",
"/usr/lib/erlang/lib/pman-2.7.1.4/ebin",
"/usr/lib/erlang/lib/percept-0.8.8.2/ebin",
"/usr/lib/erlang/lib/parsetools-2.0.10/ebin",
"/usr/lib/erlang/lib/otp_mibs-1.0.8/ebin",
"/usr/lib/erlang/lib/os_mon-2.2.14/ebin",
"/usr/lib/erlang/lib/orber-3.6.26.1/ebin",
"/usr/lib/erlang/lib/odbc-2.10.18/ebin",
"/usr/lib/erlang/lib/observer-1.3.1.2/ebin",
"/usr/lib/erlang/lib/mnesia-4.11/ebin",
[...]|...]
Why isn't "code:add_pathz" working? Thanks.
Erlang R16B03
Eshell V5.10.4
Ubuntu LTS 14.04
The path above works. The fault was with .beam-files in the code-directory. Recompiling made them accessible from outside the "code"-directory.
Related
I'm getting this error on Arduino(1.8.9).
usage: esptool write_flash [-h] [--erase-all]
[--flash_freq {keep,40m,26m,20m,80m}]
[--flash_mode {keep,qio,qout,dio,dout}]
[--flash_size FLASH_SIZE]
[--spi-connection SPI_CONNECTION] [--no-progress]
[--verify] [--compress | --no-compress]
<address> <filename> [<address> <filename> ...]
esptool write_flash: error: argument <address>
<filename>: [Errno 2] No such file or directory:'/home/USER/.arduino15/packages/esp32/hardware/esp32/1.0.2/tools/partitions/boot_app0.bin'
esptool write_flash: error: argument <address> <filename>: [Errno 2] No such file or directory: '/home/USER/.arduino15/packages/esp32/hardware/esp32/1.0.2/tools/partitions/boot_app0.bin'
Although boot_app0.bin file is present:
image link
To fix this problem you can try to edit the platform.txt file which you can find in your esp package directory.
So, you need to replace inner section with code written below:
## Combine gc-sections, archives, and objects
recipe.c.combine.pattern={recipe.hooks.linking.prelink.1.pattern} & "{compiler.path}{compiler.c.elf.cmd}" {build.exception_flags} -Wl,-Map "-Wl,{build.path}/{build.project_name}.map" {compiler.c.elf.flags} {compiler.c.elf.extra_flags} -o "{build.path}/{build.project_name}.elf" -Wl,--start-group {object_files} "{archive_file_path}" {compiler.c.elf.libs} -Wl,--end-group "-L{build.path}" & {recipe.objcopy.hex.1.pattern}
The key thing here is "{recipe.hooks.linking.prelink.1.pattern} &" at start and "& {recipe.objcopy.hex.1.pattern}" at the end. The text between is the part of the platform.txt file, that you dont need to change.
The above is true for OS Windows. In OS Linux set {recipe.hooks.linking.prelink.1.pattern} ;" and "; {recipe.objcopy.hex.1.pattern}".
Its solve my problem for ESP8266, I hope its will be helpful for you too.
Reference link https://www.eclipse.org/forums/index.php/t/1095090/
if you are using esptool. Make sure you actually download the files from github using the download button instead of using the save as option when u right click on the file name.
I follow the basically solutions to solve it, but I already had the problem.
In my configure.ac file I have a check for mysql:
AC_CHECK_HEADER([mysql/mysql.h], ,AC_MSG_ERROR([Could not find mysql headers !]))
and of course it complain because, as explain here:
If the header files are installed in a nonstandard location, such as
/opt/include, and CPPFLAGS doesn't refer to that directory-for
example, as -I/opt/include-the AC_CHECK_HEADER macro will fail, even
though the files do exist on the system. However, this is an issue for
the system's administrator. Part of the convenience of autoconf is
that you, as the developer, don't need to worry about these details.
So, as developer, what's the way to go to solve it properly ?
I also put the path of real location in Makefile with -I/usr/include/mysql, but it continues to complain.
EDIT: as suggestd I post the configure.ac (the main parts):
useMysql=no
AC_MSG_CHECKING([whether to use mysql])
AC_ARG_ENABLE(mysql,
[ --enable-mysql Enable mysql support],
[MYSQL="$enableval"]
useMysql=yes,
[MYSQL="no"]
)
AC_MSG_RESULT([$MYSQL])
AC_SUBST([MYSQL])
[...]
if test "$MYSQL" = "yes"; then
AC_CHECKING([for MYSQL Library and Header files])
AC_CHECK_HEADER([mysql/mysql.h], ,AC_MSG_ERROR([Could not find mysql headers !]))
AC_CHECK_LIB(mysqlclient, mysql_init, [ MYSQL_LIBS="-lmysqlclient" ], [AC_MSG_ERROR([$PACKAGE_NAME requires but cannot find mysqlclient])])
AC_DEFINE(USE_MYSQL, 1, [Use MYSQL library])
AC_SUBST(MYSQL_LIBS)
fi
then I use the MYSQL_LIBS in the Makefile:
AM_CFLAGS = -g -fPIC -rdynamic -I$(top_srcdir)/include -I/usr/include/mysql
I am trying to connect a database to Weka 3.6.13 in Linux Elementary OS.
First, I had a problem with JDBC connection, solved by this answer changing the /usr/bin/weka file.
Now, when I load the database, this error comes:
Unknown data type: INT. Add entry in weka/experiment/DatabaseUtils.props.
However, I am trying to use explorer only, this file doesn't even exists in my installation.
I installed via sudo apt install weka.
What should I do?
Look inside the directory where your weka.jar file resides, and check if there exists a file called DatabaseUtils.props.
The Weka wiki says:
Weka only looks for the DatabaseUtils.props file. If you take one of
the example files listed above, you need to rename it first.
My file is different I think the actual name does not really matter, it's the filename extension that matters.
In my version of this file there is a section that looks like this:
... (snip...
# mysql-conversion / type-mappings
CHAR=0
TEXT=0
VARCHAR=0
STRING=0
LONGVARCHAR=9
BINARY=0
VARBINARY=0
LONGVARBINARY=9
BIT=1
BOOL=1
NUMERIC=2
DECIMAL=2
FLOAT=2
DOUBLE=2
TINYINT=3
SMALLINT=4
#SHORT=4
SHORT=5
INTEGER=5
INT=5
BIGINT=6
LONG=6
REAL=7
DATE=8
TIME=10
TIMESTAMP=11
#mappings for table creation
CREATE_STRING=TEXT
CREATE_INT=INT
CREATE_DOUBLE=DOUBLE
CREATE_DATE=DATETIME
DateFormat=yyyy-MM-dd HH:mm:ss
#database flags
checkUpperCaseNames=false
checkLowerCaseNames=false
checkForTable=true
setAutoCommit=true
createIndex=false
# All the reserved keywords for this database
Keywords=\
AND,\
ASC,\
BY,\
DESC,\
FROM,\
GROUP,\
INSERT,\
ORDER,\
SELECT,\
UPDATE,\
WHERE
# The character to append to attribute names to avoid exceptions due to
# clashes between keywords and attribute names
KeywordsMaskChar=_
#flags for loading and saving instances using DatabaseLoader/Saver
nominalToStringLimit=50
idColumn=auto_generated_id
If you do a google search for this file, another guy has posted his on github. The weka Wiki or SVN/Git-Repo might also list an offfical version somewhere (cannot find it right now), or you can open your weka.jar file as a zip file and extract the .props file (/src/main/java/weka/experiment/DatabaseUtils.props.mysql).
In any case, Mysql exists in many different versions, and I think you can even switch the query engine inside mysql. So I cannot express any guarantees that any of these 2 .props files shown here really work for you. You should experiment a bit.
Is this currently possible?
This is the contents of my settings.cfg file:
[DEFAULT]
DefaultApplVerID=FIX.5.0SP2
ConnectionType=initiator
ReconnectInterval=60
FileStorePath=store
FileLogPath=*store
HttpAcceptPort=8080
HeartBtInt=30
StartTime=00:00:00
EndTime=00:00:00
UseDataDictionary=Y
DataDictionary=quickfix/FIX50SP2.xml
TransportDataDictionary=quickfix/FIXT11.xml
ValidateUserDefinedFields=N
ResetOnLogout=Y
ResetOnLogon=Y
MySQLStoreDatabase=quickfix
MySQLStoreUser=user
MySQLStorePassword=password
MySQLStoreHost=ip address
MySQLLogDatabase=quickfix
MySQLLogUser=user
MySQLLogPassword=password
MySQLLogHost=0.0.0.0
[SESSION]
BeginString=FIXT.1.1
SenderCompID=senderid
TargetCompID=targetid
SocketConnectPort=port
SocketConnectHost=host
Currently it is using the FileStorePath (/store/), but it is ignoring the MySQLStoreDatabase. Should I change these settings, or is the change going to be more complicated than that/impossible?
I'm using python 2.7 and quickfix 1.14.3 (which I installed using pip)
I bet you are constructing your app with a FileStoreFactory.
Gotta use a MySQLStoreFactory.
The problem is that the compiler says that there is a redefinition of a function between a library that belongs to MySQL and math.h from the std library.
I have been over this for two days and I still can't figure it out.
Has this ever happened to anyone?
This is the output from the compiler
C:\mingw\bin\mingw32-make.exe all
'Building file: ../src/interfaz/ventanaconf.cpp'
'Invoking: GCC C++ Compiler'
C:\mingw\bin\mingw32-g++.exe -mms-bitfields -I"c:\dev-cpp\gtkmm\include\gtkmm-2.4"
-I"c:\dev-cpp\gtkmm\lib\gtkmm-2.4\include" -I"c:\dev-cpp\gtkmm\include\glibmm-2.4"
-I"c:\dev-cpp\gtkmm\lib\glibmm-2.4\include" -I"c:\dev-cpp\gtkmm\include\gdkmm-2.4"
-I"c:\dev-cpp\gtkmm\lib\gdkmm-2.4\include" -I"c:\dev-cpp\gtkmm\include\pangomm-1.4"
-I"c:\dev-cpp\gtkmm\include\atkmm-1.6" -I"c:\dev-cpp\gtkmm\include\sigc++-2.0"
-I"c:\dev-cpp\gtkmm\lib\sigc++-2.0\include" -I"c:\dev-cpp\gtkmm\include\cairomm-1.0"
-I"c:\gtk\include\gtk-2.0"
-I"c:\gtk\include\glib-2.0"
-I"c:\gtk\lib\glib-2.0\include"
-I"c:\gtk\lib\gtk-2.0\include"
-I"c:\gtk\include\pango-1.0"
-I"c:\gtk\include\cairo"
-I"c:\gtk\include\freetype2"
-I"c:\gtk\include"
-I"c:\gtk\include\atk-1.0"
-I"c:\Archivos de programa\MySQL\MySQL Server 5.0\include"
-O0 -g3 -w -c -fmessage-length=0 -MMD -MP -MF"src/interfaz/ventanaconf.d"
-MT"src/interfaz/ventanaconf.d"
-o"src/interfaz/ventanaconf.o" "../src/interfaz/ventanaconf.cpp"
In file included from c:/Archivos de programa/MySQL/MySQL Server 5.0/include/my_global.h:73,
from ../src/interfaz/../gestiondb/gestordb.h:6,
from ../src/interfaz/../gestiondb/operacionesdb.h:5,
from ../src/interfaz/ventanamodulos.h:20,
from ../src/interfaz/ventanaconf.h:27,
from ../src/interfaz/ventanaconf.cpp:1:
c:/Archivos de programa/MySQL/MySQL Server 5.0/include/config-win.h: **In function `double rint(double)':
c:/Archivos de programa/MySQL/MySQL Server 5.0/include/config-win.h:228: error: redefinition of `double rint(double)'
C:/mingw/bin/../lib/gcc/mingw32/3.4.2/../../../../include/math.h:620: **error: `double rint(double)' previously defined here**
C:\mingw\bin\mingw32-make.exe: *** [src/interfaz/ventanaconf.o] Error 1**
Thanks in advance!!!
This thread in the mysql support area seems to indicate that they've taken the definition of rint() out of their config_win.h file as of April this year (even though the patch was proposed in 2006). Are you using a version of the MySQL source newer than that?
The problem was about an included library, which linux simply ignores, but windows want out. There is no problem letting it out in linux neither...
Somedays i feel SOOOOOOOOOOOOOOOOOOOOOOO STUPID:..
In line 228 of c:/Archivos de programa/MySQL/MySQL Server 5.0/include/config-win.h you should find a declaration/definition of function named "rint". In line 620 of C:/mingw/bin/../lib/gcc/mingw32/3.4.2/../../../../include/math.h you should find another definition of a function with the same name (which probably even does the same).
To solve the problem you will have to delete/outcomment/undefine one of these definitions.
Be prepared to get a similar problem when linking, if you also link two libraries with the same function.