Missing Required Parameter 'from' for event 'open' - ERROR?

I came across the same error message using InDesign CS3 with Mac OS X v.10.6.8. After reading the "correct answer" by MacGruvi, I checked my file names and the that of the containing folder to see if they included the # character. They didn't, but I still got the same error message.

At least in my case the real culprit was the length of the containing folder, which after several trials proved to have to be no longer than 128 characters including the spaces exactly. 129 characters would result in the same error. So pattii55's answer above which I came across afterwards seems to be more helpful than that of MacGruvi. Those for whom removing the # sign worked might want to see if they had too long a file name where the omission of the # character reduced the file length just within the allowed range.

Getting same error. No # symbols in any folders or filenames. This is a pretty big error from a pretty big software and operating system. Surprised this there is no solution or explanation from Adobe.

How do you even report a bug?

Thanks for this advice. I found that my files included a semicolon in the filenames. I just deleted the ';' and they opened no problem.

R

I found that if I drag the InDesign file out of the folder it is in, onto the desktop, it opens with a double-click. When I put it back in a folder, I get that same error. Put it back on the desktop, voila!

These references may offer a reason for the problem:

visit CNET MacFixit at

>   http://reviews.cnet.com/8301-13727_7-10401605-263.html?tag=nl.e780   <

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November 25, 2009 11:18 AM PST

UPDATED: Finder not opening files when double-clicked

by Joe Aimonetti

Matt Neuburg at TidBits explains that Apple has officially documented that Snow Leopard's Launch Services no longer considers a document's embedded Creator Code when determining which application to launch when the file is opened in Finder. This change is new to Mac OS X 10.6 and greater and signals a fundamental change in a long-standing Mac programming code.

Neuburg writes:

The relationship between a document and its owning application is called a preferred application binding. Since the very first day of the very first version of Mac OS X, there has been an uneasy detente between the Unix way of binding documents to applications and the former Mac way, inherited from the early days of the Mac OS. Now, in Snow Leopard, users and developers are complaining that the Unix way is being allowed to run roughshod over the Mac way.

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Perhaps this also is the reason that a "saved as" Photoshop file will open in Preview unless Photoshop opening is specially requested as (mouse right click) "open with". Sometimes setting this preference in Get Info seems to be over-ridden too.

Rather than launching the file externally within the finder simply open

the file within Indesign. This will overcome the "Parameter 'from' for event 'open" ERROR

I have read all of the posts for this issue and I have found a solution for this problem for my system. I have also gotten a response from Adobe support. I changed a few things in the way I was naming my files and folders. I have recently upgraded to Snow Leopard and have gotten this same error message. All of my folders are filed with a #sign. Everything inside of those folders are as well named with a #sign. All of my work is filed by the month. I removed all of the number signs and used no spaces and this included changing the naming convention of all of my other folders and like magic, I could once again open my files by double clicking. So no more number sign for me.

Also if anyone has had any issues with not being able to open multiple files in Photoshop, check for the naming convention as well of the folder they reside in and also the name of the file.

Lynda

jollymac,

Following an earlier post, make sure none of the enclosing folders have an illegal file name character. This may not be a factor in your case but is was in mine. After removing the # in both file name and the folder name, I was able to open the file by double-clicking in Finder without resorting to opening within InDesign.

interestingly enough, leaving the # sign in the name of an Illustrator EPS file makes no bit of difference when opening it. works just fine double-clicking to open.... what gives?!

Thank you, MacGruvi. The name of the file I was unable to open also contained the # symbol. I tried renaming it earlier but still got the same error message. However, after reading your post, I realized that the enclosing folder also contained # in the name. Once I renamed both the file and folder by removing the symbol, my file opens correctly.

Problem solved... for me anyway!