Error evaluating PerlScript script expression

[ramakrd]

I am getting strange message in visual build pro. I am upgrading server to windows 2012, installed visual buildpro v9 32bit, installed Active perl 32bit.

when I run any steps where the macros are there in condition expression I am getting below error.

Error expanding macros or script in property condexpr: <Error in ? (PerlScript) script code at Line 1, Column 0 ( (in cleanup) Can't call method "Dispatch" on an undefined value at -e line 5.
)>
10/18/2019 2:02:13 PM: Build ended (elapsed = 00:00:00).


Error expanding macros or script in property condexpr: <Error in ? (PerlScript) script code at Line 1, Column 0 ( (in cleanup) Can't modify non-lvalue subroutine call )>
10/18/2019 2:09:15 PM: Build ended (elapsed = 00:00:00).

[kinook]

Are you sure that your script expressions are PerlScript language? I don't think Len is a built-in Perl function.

https://www.google.com/search?q=perl+len