cannot install tinyMCE 4.3.0 on Revolution 2.1.1-pl

MODX Revolution 2.1.1-pl (traditional)
TinyMCE 4.3.0-rc1

error below
Could not unpack package /content/Hosting/d/r/drrosemarycoleman.com/web/core/packages/tinymce-4.3.0-rc1.transport.zip to /content/Hosting/d/r/drrosemarycoleman.com/web/core/packages/. SIG: tinymce-4.3.0-rc1

Could not install package with signature: tinymce-4.3.0-rc1

I’ve set the "archive_with" to yes. So this is my next issue? anyone know what it is?

I’ve managed to install all my other packages but TinyMCE just wont install - with the same error. I’ve deleted the zip through my ftp program hoping to remove and start again. but now the tinyMCE is persisting!!! it’s still there even though i refresh the list!



This really starting to frustrate me

from the extra page:

If you’re having issues installing, make sure you have the latest ZipArchive extension for PHP, and that it’s properly configured, or set the "archive_with" System Setting to Yes.

worked for me.

ok got it working. the package somehow got corrupted (maybe from half-unziping it before).
Deleted with FTP re-uploaded and it works now.