SOAP/Deserializer.pm did not return a true value at (eval 93) line 3.
        ...propagated at /usr/lib/perl5/5.8.8/base.pm line 85.
BEGIN failed--compilation aborted at /usr/lib/perl5/site_perl/5.8.8/
Google/AdWords/Deserializer.pm line 24.
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Line 24 of Google/AdWords/Deserializer.pm reads

use SOAP::Lite;
use base qw(SOAP::Deserializer);
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The code for the package SOAP::Deserializer is contained in the file SOAP/Lite.pm.  In other words, there is normally no SOAP/Deserializer.pm file — at least not in the current SOAP::Lite release.  OTOH, base checks if there exists a package variable $SOAP::Deserializer::VERSION (which doesn't in this case), and if not tries to load SOAP/Deserializer.pm. This is all fine as long as there is in fact no such file, as the error "Can't locate SOAP/Deserializer.pm at..." would silently be ignored by base.

Now, the thing is that you do seem to have such a file (as the error message indicates), and apparently one which doesn't return a true value when required, which is an error condition that base does not ignore...   Further support for this theory is that if I put an empty Deserializer.pm file in my SOAP-Lite installation, I can reproduce the issue:

$ perl -MSOAP::Lite -e'use base qw(SOAP::Deserializer);'
SOAP/Deserializer.pm did not return a true value at (eval 80) line 3.
        ...propagated at /usr/lib/perl5/5.10.1/base.pm line 93.
BEGIN failed--compilation aborted at -e line 1.
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So, check if you maybe also have such a stray Deserializer.pm file...

Anyhow, the short version of all this is that replacing the above line (in Google/AdWords/Deserializer.pm)

use base qw(SOAP::Deserializer);
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with

BEGIN { our @ISA = "SOAP::Deserializer"; }
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should also fix the issue...

Thank you for the quick reply.

According to the Google README doc, the deserialization does not occur in SOAP::Lite:

The backbone of the client library is a modified version of SOAP::WSDL. It handles the serialization/deserialization, transport, and creating classes for the objects defined in the AdWords API WSDLs. SOAP::WSDL, in turn, uses SOAP::Lite under the hood for some operations.

Later on the the README, in the "Step-by-step guide for getting started:" section it states:

4) This client library relies on a development version of the SOAP::WSDL module, and also relies on patches to that module. You download the version of SOAP::WSDL available at
http://soap-wsdl.svn.sourceforge.net/viewvc/soap-wsdl/SOAP-WSDL/branches/Typemap.tar.gz?view=tar&pathrev=846
and expand the gzip and tar archive. Once that's done, run the soap_wsdl_patches.pl script on the expanded Typemap directory like so:
bin/soap_wsdl_patches.pl /path/to/downloaded/Typemap

5) Install the patched SOAP::WSDL following the directions in its README.

I have followed all of these steps with the exception that I downloaded a later version of the SOAP::WSDL module.

I took a look and there is indeed a /SOAP/WSDL/Deserializer directory with the following modules in it:

• Hash.pm
• SOM.pm
• XSD.pm

FYI I tried your BEGIN { push @ISA, "SOAP::Deserializer"; } fix and got the following error:

Global symbol "@ISA" requires explicit package name at /usr/lib/perl5/
+site_perl/5.8.8/Google/AdWords/Deserializer.pm line 25.
BEGIN not safe after errors--compilation aborted at /usr/lib/perl5/sit
+e_perl/5.8.8/Google/AdWords/Deserializer.pm line 25.
Compilation failed in require at /usr/lib/perl5/site_perl/5.8.8/Google
+/AdWords/Client.pm line 26.
BEGIN failed--compilation aborted at /usr/lib/perl5/site_perl/5.8.8/Go
+ogle/AdWords/Client.pm line 26.
Compilation failed in require at display_stats.pl line 24.
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According to the Google README doc, the deserialization does not occur in SOAP::Lite:

It doesn't really matter where the deserialization actually occurs...  Google/AdWords/Deserializer.pm loads SOAP::Lite and tries to set up an inheritance relationship with SOAP::Deserializer. And that's the line where the error occurs...


FYI I tried your BEGIN { push @ISA, "SOAP::Deserializer"; } fix and got the following error ...

Sorry, my fault. That should've been BEGIN { our @ISA = ... (as I've updated my node in the meatime).