These error-messages are indicative of a Plugin version that is incompatible with SketchUp v2014.
Do NOT copy versions across from older Plugins folders.
Install fresh versions of your Plugins from the authors' pages or the PluginStore or the EWH...
Many Plugins have already been updated to be compatible with v2014.
If you find that a latest version is not compatible with v2014, then let the author know... and a fix might be quickly effected... 😕