I am having this error: Module File for x-pbb123 Not Found!Module File for Not Found!Module File for Not Found!Module File for Not Found!Module File for Not Found!Module File for Not Found!

And after this error occur I can´t install new modules, I can only manage de ones that are alread installed.

Sorry about my English. (I´m from Brasil).

Thanks.

Some modules come downloaded inside folders you have to make sure that you upload the folder containing the "xoops_version.php" open the file x-pbb123 and if there is another folder inside that contains the file "xoops_version.php" which is the file that installs the module.
"xoops_version.php" must be visible in the parent module directory

See this set of Flash Tutorials on the subject of module deployment.

I forgot to say that I have deleted the diretory x-pbb123 and the problem is still there. It has been registered somewhere? If yes, how can I unregister it?

Thanks

I had a bunch of these errors as well on a site I am building. If you follow instructions from the post they will go away.

In the modules directory, I went through each directory assigned to modules. I deleted unused module directories and ensured that the file xoops_version.php is in the top level of the specific module directory ...

Reload the Module Administration and voilà ... They are gone ... In my case there were five to six entries like this "Module File for Not Found" for each incorrect module directory. This also removed empty module entries in the not yet installed modules list at the bottom of the Module Administration page ....