Get Seesmic Desktop 2 to Work on Mac OS X

Most people are having no problem installing Seesmic Desktop 2, but a small set of Mac OS X users are running into a common error. When they attempt to install the program from Seesmic’s website they are presented with the following error message: “Application can’t be installed.”

Here is how to fix the problem:

1. Microsoft Silverlight, not SD2, is the problem, so you’ll need to uninstall it first. Go to your Mac hard drive and then to “/Library/Internet Plug-Ins/” and delete “Silverlight.plugin”

2. Go to your home folder and then “~/Library/Application Support/Microsoft/” and delete the “Silverlight” folder. (thank you @dejunky for this tip)

3. If you have previously installed a beta version of SD2, go to your home folder and then to “~/Documents” and delete the “Seesmic” folder. (thank you @loic for this tip)

4. Now to reinstall Silverlight. Download the latest version from microsoft.com/getsilverlight and install it.

5. Close your browser and then reopen it.

6. Download SD2 Seesmic’s website.

It should now work. If you’re still having trouble, continue reading:

You may have some extra Silverlight files that were not deleted. Go to your Mac hard drive and do the following:

  • Go to “/Library/Internet Plug-Ins/” and delete “Silverlight.plugin”
  • Also in “/Library/Internet Plug-Ins/” delete “WPFe.plugin”
  • Go to “/Library/Receipts/” and delete “Silverlight.pkg”
  • Also in “/Library/Receipts/” delete “Silverlight_W2_MIX.pkg”
  • Also in “/Library/Receipts/” delete “WPFe.pkg”
  • Go to your home folder and then to “~/Library/Application Support/Microsoft/” and delete the “Silverlight” folder. (thank you @dejunky for this tip)

Don’t worry if some of these files don’t exist.

Alternatively paste the following code into Terminal and let it run:

rm -rf /Library/Internet\ Plug-Ins/Silverlight.plugin/ && rm -rf /Library/Internet\ Plug-Ins/WPFe.plugin && rm -rf /Library/Receipts/Silverlight.pkg/ && rm -rf /Library/Receipts/Silverlight_W2_MIX.pkg/ && rm -rf /Library/Receipts/WPFe.pkg/ && rm -rf ~/Library/Application Support/Microsoft/Silverlight

Repeat steps 2-4 above and it should work.

Edit: As evidenced by the comments, this isn’t as surefire a solution as I had hoped. They are, however the steps that I took and it worked for me, so it’s worth a try.

I’ve added a tip courtesy of @dejunky in the comments: Go to your home folder and then “~/Library/Application Support/Microsoft/” and delete the “Silverlight” folder before reinstalling Silverlight.

If you have any other solutions, please share them in the comments.

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How To Use tr.im With Tweetie 2

I prefer tr.im’s URL shortening service to bit.ly’s or any of the other major shorteners and I like to be consistent with the shortening service I use. So I was a bit annoyed when I found that Tweetie 2 does not support tr.im natively, but luckily the app’s developer has included a feature that allows you to add a shortening service that is not supported by default. This is the first time that I have seen an app do this, but I hope to see TweetDeck include something like this in the future.

   1. Open Tweetie 2 and go to the Accounts page;

   2. Click on “Settings” in the lower left-hand corner;

   3. Click on “URL Shortening”;

   4. Choose “Custom…”;

   5. Enter the following text into the box without the quotes: “http://api.tr.im/v1/trim_simple?url=%@”.

If you have a tr.im account you can turn on claim URLs by going to “Account” then “Claim URLs” and shortened URLs will then be associated with your account.

You can find more information about the feature on developer.atebits.com.

Edit: I have updated the guide to make it more streamlined and removed an alternative method to claim URLs which passed passwords in plain text.

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