TinyMCE 3.2.7 beta3 Package install failure on MODx Revolution 2.0.0-beta-4

On the console screen appears "PHP notice: A non well formed numeric value encounteed". Retry install causes this message to be repeated for the number of times install retried.

As an aside, the button on the bottom of console screen "Download Output to File" does nothing! Just takes to blank web page

According to it’s description: http://modxcms.com/extras/package/459

That specific version of TinyMCE is only supported in beta5 or later.

Revo beta5 supports version checking, so that you wont be able to download packages your modx version doesn’t support. beta4 doesnt, however, support this feature, so that’s probably why you can still see beta5-only packages. Make sure to read their descriptions before downloading them.