Run lcov failed "Can't locate JSON/PP.pm in @INC ..."

When execute command: lcov --capture --directory . --no-external --output-file coverage.info to generate code coverage report, I encountered the following error:

$ lcov --capture --directory . --no-external --output-file coverage.info
Capturing coverage data from .
Can't locate JSON/PP.pm in @INC (@INC contains: /usr/local/lib64/perl5 /usr/local/share/perl5 /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5 .) at /usr/local/bin/geninfo line 63.
BEGIN failed--compilation aborted at /usr/local/bin/geninfo line 63.
sh-4.2$ perl -MCPAN -e 'install JSON'
Can't locate CPAN.pm in @INC (@INC contains: /usr/local/lib64/perl5 /usr/local/share/perl5 /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5 .).
BEGIN failed--compilation aborted.

Can’t locate CPAN.pm

fixed this problem “Can’t locate CPAN.pm” by running the command yum install perl-CPAN

sh-4.2$ sudo perl -MCPAN -e 'install JSON'
[sudo] password for sxp:
Can't locate CPAN.pm in @INC (@INC contains: /usr/local/lib64/perl5 /usr/local/share/perl5 /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5 .).
BEGIN failed--compilation aborted.
sh-4.2$ sudo yum install perl-CPAN

Then run sudo perl -MCPAN -e 'install JSON' again, it works.

Can’t locate JSON/PP.pm

fixed this problem by copying backportPP.pm to the PP.pm file.

$ cd /usr/local/share/perl5/JSON
$ ls
backportPP  backportPP.pm
$ cp backportPP.pm PP.pm

Can’t locate Module/Load.pm

bash-4.2$ geninfo --version
Can't locate Module/Load.pm in @INC (@INC contains: /usr/local/lib64/perl5 /usr/local/share/perl5 /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5 .) at /usr/local/bin/geninfo line 63.
BEGIN failed--compilation aborted at /usr/local/bin/geninfo line 63.
bash-4.2$

Install perl-Module-Load-Conditional can resolved.

sudo yum install perl-Module-Load-Conditional

Can’t locate Capture/Tiny.pm in @INC

sh-4.2$ lcov --version
Can't locate Capture/Tiny.pm in @INC (@INC contains: /usr/local/bin/../lib /usr/local/lib64/perl5 /usr/local/share/perl5 /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5 .) at /usr/local/bin/../lib/lcovutil.pm line 13.
BEGIN failed--compilation aborted at /usr/local/bin/../lib/lcovutil.pm line 13.
Compilation failed in require at /usr/local/bin/lcov line 104.
BEGIN failed--compilation aborted at /usr/local/bin/lcov line 104.

Fixed with following command

perl -MCPAN -e 'install Capture::Tiny'

Then run lcov --version back to work.

sh-4.2$ lcov --version
lcov: LCOV version v1.16-16-g038c2ca

Can’t locate DateTime.pm

$ genhtml --help
Can't locate DateTime.pm in @INC (@INC contains: /usr/local/lib64/perl5 /usr/local/share/perl5 /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5 .) at /usr/local/bin/genhtml line 87.
BEGIN failed--compilation aborted at /usr/local/bin/genhtml line 87.

Need to install the perl module DateTime, On Centos7 run

sudo yum install 'perl(DateTime)'

But this still doesn’t work for me.

Run geninfo command failed

Capturing coverage data from .
Compress::Raw::Zlib version 2.201 required--this is only version 2.061 at /usr/local/share/perl5/IO/Uncompress/RawInflate.pm line 8.
BEGIN failed--compilation aborted at /usr/local/share/perl5/IO/Uncompress/RawInflate.pm line 8.
Compilation failed in require at /usr/local/share/perl5/IO/Uncompress/Gunzip.pm line 12.
BEGIN failed--compilation aborted at /usr/local/share/perl5/IO/Uncompress/Gunzip.pm line 12.
Compilation failed in require at /usr/local/bin/geninfo line 62.
BEGIN failed--compilation aborted at /usr/local/bin/geninfo line 62.
sh-4.2$

Install package Compress::Raw::Zlib fixed.

perl -MCPAN -e 'install Compress::Raw::Zlib'