file not recognized, file format not recognized, installation, svmlight

[alexkaz]

Hello Uber's,

Can anyone help with the error "file not recognized: file format not recognized".

Background:
Installated Ubuntu 9.10 in the last two days.
Installed GNU GCC and have run .c and .cpp via gcc and g++ respectively.

Current scenario:
Downloaded svmlight.tar.gz, and extracted it in /svm_light.
Then issued "make" and the executables were made.
Downloaded example1.tar.gz into /svm_light/example1, then extracted (as instructed at SVMLight Homepage)


svm_learn is called with the following parameters:
svm_learn [options] example_file model_file //svm_learn.c exists
// and so does svm_learn_main.c


So I tried running the example1 as instructed:

svm_learn example1/train.dat example1/model

this generates errors: svm_learn: command not found.

when I try gcc -o smv_learn example1/train.dat

the error is: example1/train.dat: file not recognized: file format not recognized.

How can I 1) have the .dat files recognized, and
2) how can I get the svm_learn to compile (the executable is there)

Thanks for everyone's help.

[alexkaz]

Hello Uber's,

Can anyone help with the error "file not recognized: file format not recognized".

Background:
Installated Ubuntu 9.10 in the last two days.
Installed GNU GCC and have run .c and .cpp via gcc and g++ respectively.

Current scenario:
Downloaded svmlight.tar.gz, and extracted it in /svm_light.
Then issued "make" and the executables were made.
Downloaded example1.tar.gz into /svm_light/example1, then extracted (as instructed at SVMLight Homepage)


svm_learn is called with the following parameters:
svm_learn [options] example_file model_file //svm_learn.c exists
// and so does svm_learn_main.c


So I tried running the example1 as instructed:

svm_learn example1/train.dat example1/model

this generates errors: svm_learn: command not found.

when I try gcc -o smv_learn example1/train.dat

the error is: example1/train.dat: file not recognized: file format not recognized.

How can I 1) have the .dat files recognized, and
2) how can I get the svm_learn to compile (the executable is there)

Thanks for everyone's help.

[alexkaz]

just came across a old cgwin forum Q&A of the same problem - http://cygwin.com/ml/cygwin/2004-06/msg00285.html

the advice "try doing "gcc -v test.c" instead, and cut and paste the output intoa reply...

which is here:

alex@UbuntuPC:~/tmp/svm_light$ gcc - v test.c
gcc: v: No such file or directory
gcc: test.c: No such file or directory
gcc: -E or -x required when input is from standard input

[alexkaz]

just came across a old cgwin forum Q&A of the same problem - http://cygwin.com/ml/cygwin/2004-06/msg00285.html

the advice "try doing "gcc -v test.c" instead, and cut and paste the output intoa reply...

which is here:

alex@UbuntuPC:~/tmp/svm_light$ gcc - v test.c
gcc: v: No such file or directory
gcc: test.c: No such file or directory
gcc: -E or -x required when input is from standard input

[alexkaz]

alex@UbuntuPC:~/tmp/svm_light$ gcc - v svm_learn.c
gcc: v: No such file or directory
gcc: -E or -x required when input is from standard input
alex@UbuntuPC:~/tmp/svm_light$ gcc - v svm_learn
gcc: v: No such file or directory
gcc: svm_learn: No such file or directory
gcc: -E or -x required when input is from standard input

[alexkaz]

alex@UbuntuPC:~/tmp/svm_light$ gcc - v svm_learn.c
gcc: v: No such file or directory
gcc: -E or -x required when input is from standard input
alex@UbuntuPC:~/tmp/svm_light$ gcc - v svm_learn
gcc: v: No such file or directory
gcc: svm_learn: No such file or directory
gcc: -E or -x required when input is from standard input

[alexkaz]

I am beginning to understand the following as deduced from the commands and subsequent errors below:
If I add .c to the svm_learn filename, the file is found.
If I remove the objectfile, the linker error 'ERROR collect 2: ld returned .... " results from the missing object file and inhibiting or preventing the linker making a link between example1/train.dat and example1/model.

Now the model file is supposed to be generated by the compilation of svm_learn...
so this suggests the svm_learn.c is not compiling. ...is that correct, what is stopping this ?


alex@UbuntuPC:~/tmp/svm_light$ gcc svm_learn example1/train.dat example/model
gcc: svm_learn: No such file or directory
gcc: example/model: No such file or directory

alex@UbuntuPC:~/tmp/svm_light$ gcc svm_learn.c example1/train.dat example/model
gcc: example/model: No such file or directory

alex@UbuntuPC:~/tmp/svm_light$ gcc svm_learn.c example1/train.dat
example1/train.dat: file not recognized: File format not recognized
collect2: ld returned 1 exit status

alex@UbuntuPC:~/tmp/svm_light$ gcc svm_learn.c example1/train.dat example/model
gcc: example/model: No such file or directory

[alexkaz]

am beginning to understand the following as deduced from the commands and subsequent errors below:
If I add .c to the svm_learn filename, the file is found.
If I remove the objectfile, the linker error 'ERROR collect 2: ld returned .... " results from the missing object file and inhibiting or preventing the linker making a link between example1/train.dat and example1/model.

Now the model file is supposed to be generated by the compilation of svm_learn...
so this suggests the svm_learn.c is not compiling. ...is that correct, what is stopping this ?


alex@UbuntuPC:~/tmp/svm_light$ gcc svm_learn example1/train.dat example/model
gcc: svm_learn: No such file or directory
gcc: example/model: No such file or directory

alex@UbuntuPC:~/tmp/svm_light$ gcc svm_learn.c example1/train.dat example/model
gcc: example/model: No such file or directory

alex@UbuntuPC:~/tmp/svm_light$ gcc svm_learn.c example1/train.dat
example1/train.dat: file not recognized: File format not recognized
collect2: ld returned 1 exit status

alex@UbuntuPC:~/tmp/svm_light$ gcc svm_learn.c example1/train.dat example/model
gcc: example/model: No such file or directory

[alexkaz]

uninstalled and reinstalled the appliction with the example1 subdirectory:
Here are the command line entires and errors:

alex@UbuntuPC:~/svm_light$ gcc - v svm_learn.c
gcc: v: No such file or directory
gcc: -E or -x required when input is from standard input
alex@UbuntuPC:~/svm_light$ gcc -c svm_learn.c
alex@UbuntuPC:~/svm_light$

[Some Penguin]

You are seriously confused and appear not to understand such things as basic file types or switches instead of randomly typing commands.

1- You are typing "- v" when instructions say "-v". This matters.

2- gcc is a compiler. It takes source code and outputs object files, or passes object files to the linker. Why are you attempting to pass already-compiled executables to gcc?

3- gcc is a compiler. Why are you passing a training data file to it or parameters, and what do you expect to happen?

4- You need to understand the significance of the PATH variable.