Magma and Tweak

I am writing simple educational applications for a customer that requires a good user interface with a database. So, I did some initial research and said, wow, Magma looks like a good choice and Tweak also looked like a good choice (I was also thinking about just using Morphic). I have been playing around with Croquet and Cobalt a bit also. 

I am on a Mac so I loaded the current Squeak image and installed Magma. Now, when I try to use Monticello to install tweak from http://hedgehog.software.umn.edu:8888/Tweak. I get an error that I attached. I am trying to use the install.mcm file. I did go back to use an older version of Monticello and got it to load to a certain point before it started syntax erroring on CObject and other classes. I did update the package to the most current and still gives me this error. I hope this helps.

I am brand new to Squeak and trying to learn the insides and out, 

Thanks for any advice!

Keith

Squeak3.9-final-7067.image-1.jpg
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