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W3 Total Cache Tip: Compatibility Test Errors

You are here: Home / Blog / W3 Total Cache Tip: Compatibility Test Errors

This is just a quick tip in case someone is trying to troubleshoot this. Guess what? There’s nothing to troubleshoot.

Sometimes W3 Total Cache can throw some Compatibility Test Errors, showing modules as Not Detected.

W3 Total Cache Compatibility Test Not Detected Error
Screenshot of W3 Total Cache Compatibility Test Not Detected Error from this site

I haven’t been able to figure it out because I know the modules are installed. I have even recompiled Apache several times thinking an error could have happened!

If you know for a fact that you have the items installed or configured, W3TC is probably throwing the “Not Detected” error at you because PHP is not running as an Apache module.

Could the W3TC Compatibility Test be right?

Still need to verify it? Got SSH access? You may need root access to command httpd. Your mileage may vary depending on your setup. PS use SUDO. Don’t login to root directly!

At your command prompt type: httpd -l

You’ll get something like this hopefully:

[code]

bmoredrew@bal [~]# httpd -l
Compiled in modules:
core.c
mod_authn_file.c
mod_authn_dbm.c
mod_authn_dbd.c
mod_authn_default.c
mod_authn_alias.c
mod_authz_host.c
mod_authz_groupfile.c
mod_authz_user.c
mod_authz_dbm.c
mod_authz_default.c
mod_auth_basic.c
mod_auth_digest.c
mod_file_cache.c
mod_cache.c
mod_disk_cache.c
mod_include.c
mod_filter.c
mod_deflate.c
mod_log_config.c
mod_log_forensic.c
mod_logio.c
mod_env.c
mod_mime_magic.c
mod_expires.c
mod_headers.c
mod_unique_id.c
mod_setenvif.c
mod_version.c
mod_proxy.c
mod_proxy_connect.c
mod_proxy_ftp.c
mod_proxy_http.c
mod_proxy_scgi.c
mod_proxy_ajp.c
mod_proxy_balancer.c
mod_ssl.c
event.c
http_core.c
mod_mime.c
mod_dav.c
mod_status.c
mod_autoindex.c
mod_asis.c
mod_info.c
mod_suexec.c
mod_cgid.c
mod_dav_fs.c
mod_dav_lock.c
mod_negotiation.c
mod_dir.c
mod_actions.c
mod_speling.c
mod_userdir.c
mod_alias.c
mod_rewrite.c
mod_so.c

[/code]

No idea what just happened?

Contact your host. This is something they should easily be able to help with.
If not.. time to move your site to HostGator!

Update: Get 25% off with this HostGator Coupon “WPBMOREDREW”

Enjoy :)

About Drew Poland

Drew Poland is a WordPress Developer from Baltimore Maryland, often seen wearing Argyle, combing his beard and drinking absurd amounts of coffee.

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