Perl Cpan Error
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Dependencies Annotate this POD CPAN RT Open 0 View/Report Bugs Module Version: 0.07 Source NAME SYNOPSIS DESCRIPTION FUNCTIONS EXCEPTION perl throw CLASSES CAVEATS BUGS SEE ALSO AUTHOR COPYRIGHT & LICENSE NAME perl error rpm Error::TryCatch - OO-ish Exception Handling through source filtering SYNOPSIS use Error::TryCatch; try { dangerous_code(); even_more_dangerous_code(); perl error handling throw new Error::Generic -text => "well, no one can live in danger forever"; } catch Error::Unhandled with { # normal die()s are translated into Error::Unhandled perl exception handling exceptions print "caught an unhandled perl exception: $@\n"; } catch Error::NewExceptionClass with { # code that handles Error::NewExceptionClass } catch Error::YetAnotherExceptions { # note that 'with' is optional (this differs from Error.pm) } otherwise { # catch any other exception which might not have been caught my $exception_class = ref($@}; print
Perl Try
"someone has thrown a $exception_class exception: $@\n"; } finally { clean_up(); # which will always be executed }; # don't forget the trailing ';' otherwise bad things *will* happen DESCRIPTION Error::TryCatch implements exception handling (try-catch) blocks functionality with an interface similiar to Error.pm (in fact, it's almost a drop-in replacement). The main difference is that it's a source filter module. As a source filter it can implement the same convenient interface without those nasty memory leaks and implicit anonymous subroutines (which can trick you, if you're not careful). Also after source parsing it converts the code into "native" perl code, so it's probably a little faster than Error.pm's approach. And, well. As far as I can tell, Error::TryCatch accomplishes its duty nicely. FUNCTIONS The interface is pretty straight-forward. I think that reading the synopsis is enough documentation. If you *really* need an explanation about how exception handling blocks
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Perl Try::tiny
this site About Us Learn more about Stack Overflow the company Business Learn perl eval more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question cpan install x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up http://search.cpan.org/~nilsonsfj/Error-TryCatch-0.07/lib/Error/TryCatch.pm Why do I get this module error: “Can't locate Error.pm in @INC”? up vote 3 down vote favorite I tried running: perl -e "use Error;" from cmd in windows 7. (active perl 5.12 installed on system) and I am getting the error Can't locate Error.pm in @INC (@INC contains: C:/Perl64/site/lib C:/Perl64/lib ) I manually searched and found Error.pm in C:/Perl64/lib/CPANPLUS. Does anyone have an http://stackoverflow.com/questions/3303641/why-do-i-get-this-module-error-cant-locate-error-pm-in-inc idea what could be going on here? perl module share|improve this question edited Jul 22 '10 at 3:24 toolic 30.6k43468 asked Jul 21 '10 at 20:41 chuck taylor 1,03721735 1 Sounds like your cpanplus was misconfigured, so it installed libraries in the wrong place. –Ether Jul 21 '10 at 21:21 4 Answerers on crack again today; the question clearly asks about Error and everyone talks about the irrelevant CPANPLUS::Error. chuck, you just have to install this missing module before you can use it. See stackoverflow.com/questions/65865/… –daxim Jul 22 '10 at 7:55 This worked for me. Thanks daxim. –chuck taylor Jul 22 '10 at 13:46 add a comment| 4 Answers 4 active oldest votes up vote 3 down vote You have to install the module Error that can be found on CPAN. But be aware of this warning: Using the "Error" module is no longer recommended due to the black-magical nature of its syntactic sugar, which often tends to break. Its maintainers have stopped actively writing code that uses it, and discourage people from doing so. See the "SEE ALSO" section below for better recommendations
you have any questions, use the contact form to get in touch with me. The following question is from one of the regular readers of TGS. Question: I'm trying to install a perl module using CPAN, and it displays "make http://www.thegeekstuff.com/2013/06/cpan-force-install-perl-module/ test had returned bad status, won't install without force". How do I force install this CPAN module? Answer: In the following example, when I was trying to install Net::SSLeay module, it didn't get installed, as some of the test failed. http://perl-begin.org/topics/cpan/life-with-cpan/debug/ By default, perl CPAN will not install a module when a test fails. cpan> install Net::SSLeay Failed Test Stat Wstat Total Fail Failed List of Failed ------------------------------------------------------------------------------- t/local/61_threads-cb-crash.t 255 65280 1 0 0.00% ?? t/local/62_threads-ctx_new-deadlo 255 65280 1 0 0.00% ?? perl error Failed 2/31 test scripts, 93.55% okay. 0/2706 subtests failed, 100.00% okay. make: *** [test_dynamic] Error 255 /usr/bin/make test -- NOT OK Running make install make test had returned bad status, won't install without force In this particular case, I know that I'm not too concerned about the specific test cases that failed. It is Ok with me to install the Net::SSLeay module even with these failed test cases. In this case, I can use "force install" command as shown below to instruct perl cpan error cpan to install the module, despite the fact that some of the tests failed. If the force install works, you'll see "/usr/bin/make install -- OK" as the last line in the output as shown below. cpan> force install Net::SSLeay .. /usr/bin/make install -- OK Note: Don't blindly use force install. You should really research and see what test cases failed, and only if you are still Ok to install the perl module with those failed test cases, you should use force install. Please note that you can also install a perl module manually without using CPAN. Typically CPAN.pm tracks all that was done during installation, and will not perform the same activity when you try to do it again. For example, if you've already done get, or make, or test command for a module, if you try to do it again, CPAN will not perform those. In those scenarios, you can use "force" command. For example, if you use get command for a module that CPAN already has in it's build directory, it won't perform the get again as shown below. cpan> get XML::Simple Running get for module XML::Simple Is already unwrapped into directory /root/.cpan/build/XML-Simple-2.20 For some reason, if you want to force the get, you can do it as shown below. In the same way, you can also use force with make and test command. cpan> force get XML::Simple fforce command is more forceful than force command. fforce will do a for
a variety of reasons. Inspect the output, and run the tests in verbose mode. The CPAN module configuration or network problems may prevent modules from being downloaded. See Life with CPAN for more information.Compiling Perl modules requires make and other development utilities. Ensure these are installed on the build system. Installation of these tools will vary by operating system, either requiring ports or packages to be installed (apt-get install build-essential on Debian Linux), or a development kit from the vendor.Knowledge of how to build and debug software on Unix is required. Consult the vendor supplied developer documentation, if any, along with the README file provided with the module.If the install has previously failed, CPAN may cache this result. In the cpan shell, run clean Module::Name, or otherwise cleanup the ~/.cpan/build directory to start over, especially if the build logs need to be saved with script(1) or tee(1) for easier inspection:$ rm -rf ~/.cpan/build$ cpan XML::LibXSLT 2>&1 | tee build.log?If a bug is found, contact the module author with a patch or bug report. Include as much relevant detail as possible, such as the output from perl -V, the operating system, and so forth.Getting HelpIf the error message is beyond your abilities, request help only with the appropriate build logs. The complete build logs from a clean build are required for others to help with the build problem. Use script(1) to record the build session (or copy and paste the complete logs) and be sure to edit out any passwords or other site-specific details from the build log. However, include as much data as possible.To restart from scratch, remove the CPAN build directory. This will either be set in the user-specific ~/.cpan/CPAN/MyConfig.pm file, or the CPAN/Config.pm file somewhere under @INC for root:$ grep build_dir ~/.cpan/CPAN/MyConfig.pm 'build_dir' => q[/home/user/.cpan/build],$ perl -MCPAN::Config -le 'print $INC{"CPAN/Config.pm"}' \ | xargs grep build_dir 'build_dir' => q[/var/root/.cpan/build],Then rebuild the module, saving the complete build logs.Missing LibrariesPerl modules that rely on C libraries may issue misleading errors if the required library and header files are not installed, or if an incompatible version