Fatal error: call to undefined function bw_trace2() in oik_libs/oik_boot.php on line 190

[bobbingwide]

I've had a report from someone installing oik-privacy-policy v1.3.2.
When he installed oik v3.0.2 the following message was displayed in the dashboard.

"Plugin could not be activated because it triggered a fatal error. Fatal error: Call to undefined function bw_trace2() in /home1/web2guy/public_html/projectmenudashboard/wp-content/plugins/oik/libs/oik_boot.php on line 190"

[bobbingwide]

I'm having difficulty reproducing this issue. I've tried installing by downloading from wordpress.org and activating and deactivating the plugins but not yet suffered the problem.

The problem would occur if the 'bwtrace' library had failed to load, or if oik_require_lib() had been called for a library other than bwtrace before the expected call to oik-bwtrace.

[bobbingwide]

have made some progress
The plugin generated 119 characters of unexpected output during activation. If you notice “headers already sent” messages, problems with syndication feeds or other issues, try deactivating or removing this plugin.

This message is produced when the constant BW_TRACE_CONFIG_STARTUP is defined as true.

It turns out that this is unrelated.

[bobbingwide]

I can cause the problem if I define the constant BWTRACE_INCLUDED using, for example
define( BWTRACE_INCLUDED, true );. When the call to oik_require_lib( "bwtrace" ) is performed, we would expect oik to load libs\bwtrace.php, which would then define the functions, so long as BWTRACE_INCLUDED is not defined.

[bobbingwide]

I've concluded that the problem is due to the site running PHP 5.2.
I've raised bobbingwide/oik-libs#5

[bobbingwide]

bobbingwide/oik-libs/issues/5 is closed so this can also be closed - as a duplicate.