I need to open my system monitor in the QTCreator, but when I try to do it I obtain the following error message:
/home/arakul/sysmon.sgrd: 2: /home/arakul/sysmon.sgrd: Syntax error: newline unexpected
I am trying to open the system monitor by using the following command:
execlp("/home/arakul/sysmon.sgrd","",NULL);
Sorry for my stupid question. I must use command ksysguard with parametrs.
system("ksysguard --desktopfile sysmon.sgrd");
Related
I am using pocketsphinx to adapt my acoustic model which i have trained.
So to use the model in pocketsphinx, i ran the following command:
pocketsphinx_continuous -inmic yes -lm "/home/ridwan/sphinx/other/output/other.lm.DMP" -dict "/home/ridwan/sphinx/other/output/other.dic" -hmm "/home/ridwan/sphinx/other/output/other.ci_cont"
But however, I am getting this error:
ad_oss.c(115): Failed to open audio device(/dev/dsp): Input/output error
FATAL: "continuous.c", line 245: Failed to open audio device
I tried this solution. (installing pulseaudio, libpulse-dev, osspd)
I also tried export LD_PRELOAD=libpulsedsp.so
But I keep getting the same error message.
I am running an existing C project, and having an error. It was used to have no problem, and I could not fix it even after reading similar issues and trying their solutions.
./autogen.sh
running: aclocal
' is already registered with AC_CONFIG_FILES.
/usr/src/ports/autoconf2.5/autoconf2.5-2.69-3.noarch/src/autoconf2.69/lib/autoconf/status.m4:288: AC_CONFIG_FILES is
expanded from...
configure.ac:890: the top level
autom4te-2.69: /usr/bin/m4 failed with exit status: 1
aclocal-1.15: error: echo failed with exit status: 1
error: while running 'aclocal'
As shown, the "autom4te-2.69" is failing, and I did not see any hints about what to do. I am using "Cygwin" on windows 10.
Any idea about how to fix this?
Thanks in advance!
I'm linking to a library on my filesystem using ld.
When I run the command ld -verbose -lmylib, I get the following back:
attempt to open /usr/x86_64-linux-gnu/lib64/libmylib.so failed
attempt to open /usr/x86_64-linux-gnu/lib64/libmylib.a failed
attempt to open //usr/local/lib/x86_64-linux-gnu/libmylib.so failed
attempt to open //usr/local/lib/x86_64-linux-gnu/libmylib.a failed
attempt to open //usr/local/lib64/libmylib.so failed
attempt to open //usr/local/lib64/libmylib.a failed
attempt to open //lib/x86_64-linux-gnu/libmylib.so failed
attempt to open //lib/x86_64-linux-gnu/libmylib.a failed
attempt to open //lib64/libmylib.so failed
attempt to open //lib64/libmylib.a failed
attempt to open //usr/lib/x86_64-linux-gnu/libmylib.so failed
attempt to open //usr/lib/x86_64-linux-gnu/libmylib.a failed
attempt to open //usr/lib64/libmylib.so failed
attempt to open //usr/lib64/libmylib.a failed
attempt to open //usr/local/lib/libmylib.so failed
attempt to open //usr/local/lib/libmylib.a failed
attempt to open //lib/libmylib.so failed
attempt to open //lib/libmylib.a failed
attempt to open //usr/lib/libmylib.so failed
attempt to open //usr/lib/libmylib.a failed
ld: cannot find -lmylib
I'm confused as to why it's trying to open files prefixed with //. This is not the case for another computer of mine. I've tried changing LIBRARY_PATH, LD_LIBRARY_PATH, my PATH, etc. but nothing seems to work. I've looked online, but can't find anything. Where are these paths set?
Thanks.
The problem here is you are trying to link against the library mylib, but this library is not in the system's library search path, or it does not exists at all. You please make it locate at the right place. If the library is in another directory that is not in the library search path, you can add it with -L option to ld, like ld -verbose -L<the directory> -lmylib.
As for the double slash you see, it's not a problem, as more than more slashes are interpreted as one slash on Linux, that is to say, //foo/bar is the same as /foo/bar`, so don't need to worry about it.
As for the difference of the search path, on Fedora, the default search path is:
SEARCH_DIR("/usr/x86_64-redhat-linux/lib64"); SEARCH_DIR("/usr/lib64"); SEARCH_DIR("/usr/local/lib64"); SEARCH_DIR("/lib64"); SEARCH_DIR("/usr/x86_64-redhat-linux/lib"); SEARCH_DIR("/usr/local/lib"); SEARCH_DIR("/lib"); SEARCH_DIR("/usr/lib");
While on Ubuntu, it is:
SEARCH_DIR("/usr/x86_64-linux-gnu/lib64"); SEARCH_DIR("=/usr/local/lib/x86_64-linux-gnu"); SEARCH_DIR("=/usr/local/lib64"); SEARCH_DIR("=/lib/x86_64-linux-gnu"); SEARCH_DIR("=/lib64"); SEARCH_DIR("=/usr/lib/x86_64-linux-gnu"); SEARCH_DIR("=/usr/lib64"); SEARCH_DIR("=/usr/local/lib"); SEARCH_DIR("=/lib"); SEARCH_DIR("=/usr/lib");
So Ubuntu start each path with prefix '=', now let's see what ld does for this:
If searchdir begins with "=", then the "=" will be replaced by the sysroot prefix, controlled by the --sysroot option, or specified when the linker is configured.
That means = will be replaced by system root, which most like is / for a Linux system. That's why you see the double slashes on Ubuntu not on Fedora.
I am working on a remote red-hat server and there I'm developing a c application to insert data in to a remote oracle database. So first i installed the OCI instant client rpm on the server and tried to compile a sample program. after certain linkages I could compile it. But then when I am going to run it. It exits giving an error saying
ORA-12162: TNS:net service name is incorrectly specified
The sample code I used is from the blog (refer to this code in case you need to clarify the things.where I’m quoting only few pieces to this post) René Nyffenegger's collection of things on the web
René Nyffenegger on Oracle
(refer to this code in case you need to clarify the things.where I’m quoting only few pieces to this post)
In the code I added some prints to check for the error And it seems like It gets stuck in the OCIServerAttach() function r gives a printed walue of -1
r=OCIServerAttach(srv, err, dbname, strlen(dbname), (ub4) OCI_DEFAULT);
printf("r value %d",r);
if (r != OCI_SUCCESS) {
checkerr(err, r);
goto clean_up;
}
Another point is that in the compilation process it gives a warning saying that a certain libry is not include. but the exicutable file is created. Here is the massage I get in the compilation process.
[laksithe#loancust ~]$ gcc -L$ORACLE_HOME/lib/ -L$ORACLE_HOME/rdbms/lib/ -o oci_test oci_test.o -L/usr/lib/oracle/12.1/client64/lib -lclntsh `cat $ORACLE_HOME/lib/sysliblist`
cat: /lib/sysliblist: No such file or directory
Going through the web I found that by creating a tnsnames.ora file with the connection details I could solve the problem. But even It didn't work for me. Here is the link for that blog blog
It has been a week since this error and I cold'nt solve it. could someone please help me.
connection string format I used is abc.ghi.com:1521/JKLMN
My recommendation is to bypass tnsnames completely. Oracle has always allowed you to put in the direct connection details, but EZConnect makes that even easier.
When you format your connection string, instead of listing the TNS name, use the actual connection properties in the following format:
servername:port/service name
For Example
MyOracle.MyCompany.Com:1521/SalesReporting
Your connection string might also require direct=true, but I'm honestly not sure.
I like the idea of tnsnames, but it's a double edged sword. When it works, it's great. When it doesn't, you want to throw something. With EZConnect, it always works.
By the way, if you don't know the properties of the three items above, find a machine that connect via tnsnames and:
tnsping <your TNS-named database>
I use file:consult function to read data from config file of my application. But some times i got error: {badmatch,{error,system_limit}} How can i avoid this?
I read about ERL_MAX_PORTS, but i haven't this variable:
echo $ERL_MAX_PORTS
i got empty string. How i can correctly set ERL_MAX_PORTS or can i find other methods to avoid this error?
Thank you