I have installed Eclipse Kepler and EPIC, the Java Development Kit, and ActivePerl.
When I create a Perl script and try to run it as Perl local I get the error
To operate correctly, EPIC requires a Perl interpreter
I don't understand why that is. Am I going wrong because I have installed Active Perl? Why is it that my Perl interpreter is not detected by EPIC?
I installed EPIC from the betas here. I went to Help/Install new software/Add then I entered this link and followed the instructions. Then my Eclipse also restarted
I am still unable to run a Perl script because of the above error.
You need to specify the Perl executable's absolute path in EPIC configuration under Eclipse. Here are are the steps
Eclipse -> Window (on menu) -> Preferences -> PerlEPIC -> Perl Executable (on hte right hand side pane) -> /usr/bin/perl (this is my perl binary on ubuntu Linux)
The /usr/bin/perl part is important; that's my Perl executable.
Note: The above steps were taken from my Eclipse running on Linux, but I hope you get the idea
Make sure you have the perl interpreter in your PATH environment (ie when you issue a perl command from the cmd prompt, it will be found)
Related
I have installed Epic in my Eclipse to run perl scripts. Unfortunately, iam getting the below error while trying to run the script.
Failed to execute command line: "perl" "-v"
Cannot run program "perl" (in directory "."): CreateProcess error=2, The system cannot find the file specified
When i tried to run "perl -v" in command prompt, it worked fine on the day i installed Epic. After restarting, the command does not work and the folder C:\Dwimperl became empty.
Note : The script did not run and showed the same error in eclipse even on the day i installed Epic.
I am using Windows 7, Eclipse Luna Release 2(4.4.2), and Perl 5 (before restart, now deleted)
These are the contents of my System PATH
E:\app\mevenk\product\12.1.0\dbhome_1\bin
C:\ProgramData\Oracle\Java\javapath
%SystemRoot%\system32
%SystemRoot%
%SystemRoot%\System32\Wbem
%SYSTEMROOT%\System32??\WindowsPowerShell\v1.0\
C:\Program Files (x86)\Sony\VAIO Startup Setting Tool
%JAVA_HOME%\
C:\Program Files (x86)\QuickTime\QTSystem\
C:\Program Files (x86)\Skype\Phone\
%M2_HOME%\bin
If not already done, In the eclipse perl EPIC preferences you need to set the full path to your perl interpreter:
e.g. In my Eclipse I have:
Window -> Preferences-> Perl EPIC-> Perl executable = "C:\DEV\TOOLS\perl\perl\bin\perl.exe"
Problem resolved after installing ActivePerl.
The problem is with perl Interpreter given with Epic (Dwimperl) which did not set the PATH variables and installables properly.
After installing ActivePerl, Eclipse took its path variables.
C:\Perl64\site\bin;C:\Perl64\bin;
Now, perl scripts working fine in Eclipse.
I installed Active Perl 5.20
and also Strawberry Perl 5.20 after uninstalling Active Perl.
In both cases, when I open cmd and type 'perl' I get:
Unknown Unicode option letter ':'.
This error also prevents all scripts from running on my Windows 8.1 installation.
I uninstalled Perl and did a fresh install and it still doesn't work.
Are there dependencies that I need to install?
I googled the error but the results pertain to Linux installations where the script specified something wrong. But I get this error when I even try to use any perl command line or script. So my problem is not a faulty script.
That is the error message you get from using an invalid value for the -C command-line option. At a guess I'd say you have the PERL_UNICODE environment variable set to a string that contains a colon :.
Take a look at Command Switches in perldoc perlrun for more detail on this.
I too had this problem on windows 8.1 . The problem is that, once on installation, .pl files are not automatically recognized by Perl engine. So please select a .pl file and right click and say open with and set the default program to C\perl\bin\ inside it click perl.exe and recognize it. Once this is done your perl works flawlessly.
I've been using the CoqIDE plugin for Vim on Linux machines for editing Coq files. Now I'm trying to install it on Windows 8. But when I try to source the plugin, I get
Your vim doesn't support Perl. Install it before using CoqIDE mode.
which is strange, because with :version I clearly see +perl/dyn included. Is this different from the +perl that I need?
I heard somewhere that you need to have Perl installed before Vim to get a Perl-enabled Vim, so I tried that as well. I uninstalled Vim, installed Strawberry Perl 5.18.2.2 (64bit), and reinstalled Vim. Still the same problem.
If the solution involves manually compiling binaries, I would really appreciate detailed instructions as I don't have any experience with it.
+perl/dyn just specifies that Vim has been compiled with dynamic Perl support; it doesn't yet check that the Perl library can be loaded successfully. To do that, try executing a Perl command, e.g.:
:perl VIM::Msg("Hello")
This probably yields on your system:
E370: Could not load library perl510.dll
Sorry, this command is disabled: the Perl library could not be loaded.
Next, you'd then have to investigate whether a proper Perl version has been installed and the DLL is accessible (though the PATH).
Download DWIMPerl for windows. I'm running win7 64 and gvim 7.4.2. Using strawberryperl and activeperl resulted in :echo has('perl') to yield 0. By switching to DWIMPerl (and ensuring my PATH env variables are proper) :echo has('perl') now yields 1 using the standard gvim distribution. This is important for vim extensions like dbext which require proper support for perl interfaces.
I have installed ActivePerl, and I would like to debug a Perl program using Eclipse and EPIC.
I have installed Eclipse and EPIC, they look OK. (It's doing basic syntax checking on an example Perl program).
I then used PPM to install PadWalker (since that's what they say is needed to use the step debugger).
Now, in Eclipse, when I try to step through the program, I get the error: "Error: install PadWalker module to see local variables".
In PPM, I notice that it had installed PadWalker in area: "site", while all other Perl modules are installed in area: "perl".
For area: "site", #INC shows: ... .../Environments/Active Perl/site/lib
and for area: "perl", #INC shows: ... .../Environments/Active Perl/lib
What should I do?
My system: Windows 7 x64.
I found the answer in another forum. One has to install the "testing" EPIC version. Then the debugger works. (only after a certain bug in Cwd.pm is fixed). (On Windows).
I'm using perlbrew to switch between perl versions. I also use Eclipse to write perl scripts.
It seems that Eclipse does not recognize the switches between perl versions, and keeps working with the base version installed out of perlbrew. I tried restarting Eclipse but this doen't help.
So, How can I make Eclipse work with perlbrew?
If you are using EPIC, this will work: Click through to Window->Preferences->Perl EPIC and set the Perl executable to perl5/perlbrew/bin/perl. This always points to the current set version of perl. The path is relative to your $HOME on Linux.
I haven't tried this as I usually just use a text editor for Perl, but I have taken to using the shebang line #!/usr/bin/env perl so that I get the perl for the user that runs the script (ie. perlbrew if me, system perl if root). If Eclipse executes the script (./myscript.pl) this should work, if instead it callsperl myscript.pl` then this will not help you.