Error occurred when attempting to change modules [was:Lightroom gone funny]

Hello all
has anyone had problems with Lightroom CC? I am running it on my mac and basically when I tried to run it I get this and cannot run lightroom

Hi, this link outlines the solution: http://forums.adobe.com/message/4955952#4955952
It is all about folder permissions.
Tony Jay

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An error occurred when attempting to change modules. Lightroom 5.2 on Mac

Lightroom 5.2 on a Mac....keeps saying 'An error occurred when attempting to change modules.

I FIGURED OUT HOW TO FIX THIS PROBLEM!
i\IIf you get the error message, “An error occurred when attempting to change modules” open up a brand new user account on your computer, name it something (Do not use Guest). Lightroom will be installed on both users, however everyone wants it to work on their main account, here is how you do it.
Click on the go menu at the top of the desktop in the new user profile and hold down option or the alt key. A tab will pop up that reads library. Click on it. A finder will appear, look for application support and click on it. Next, click adobe folder in Application Support and scroll down to Lightroom Copy this folder and paste it into the main user. HOW TO DO THIS? First copy the entire folder and then click computer in the go menu, Macintosh HD and then Users. Find your primary user account. In this case it would NOT be the one that looks like the house because you are on your alternative account! Nevertheless, find your main user account, click it and paste Lightroom folder into it. Doesn’t matter where you paste it, just know where it is.
NOW, log out of the alternative account and log into your primary user account and find the copied lightroom folder. Do the same thing mentioned above, Go menu, Computer, Macintosh HD, Users, but this time click the house tab. Find where you pasted the folder and paste it back in application support in the library via go menu. It will ask you to replace it. Hit yes. If it does not allow you to. Click get info on application support tab and make sure everyone is on read and write. Once pasted and replaced start up Lightroom.
IF NOTHING HAS WORKED FOR YOU DO THIS METHOD, IT WORKS!!

After installing Lightroom 3, we get a message saying "An Error occurred when attempting to change modules"

After installing Lightroom 3, we get a message saying "An error occured when attempting to change modules"
The Lightroom background comes up but I don't have the side information and no arrow to get it.
Can anybody help.
Debbie

Best guess is a permissions problem although you haven't mentioned what operating system you are using.
Have a look at: Error changing modules | Lightroom

LR5: error occurred when attempting to change modules. [was:hello can someone help me please.]

hi just downloaded photoshop cc n lightroom 5 last night and I'm a new to it keep getting this message in lightroom an error occurred when attempting to change modules
thank u
terry

Hi, this link outlines the solution: http://forums.adobe.com/message/4955952#4955952
It is all about folder permissions.
Tony Jay

Another "An error occurred when attempting to change modules" error

Hello all:
After using Adobe Photoshop Lightroom on Mac OSX trouble free for the past 6 months, I opened up Lightroom today and received the following error: "An error occurred when attempting to change modules." I had not made any changes in between when it worked normally and when the error started to occur. I beleive the last thing I did before this error occurred was to go into the Print Module.
Other information--I keep all my RAW .NEF files on an external Firewire (800) 750 GB drive. This is on Mac OS X 10.5 running Adobe Photoshop Lightroom 1.3 and also with 1.4.1. I'm running an iMac 20" with dual-core 2.2 Ghz Intel processors and 4 GB of RAM. I have around 25k images total.
When I noticed this problem, I was on Lightroom 1.3. I immediately upgraded to 1.4.1, which did not solve the problem. I have also tried many suggestions in the forums including uninstalling the application and removing the .plist file.
I thought I had come up with a solution by creating a new catalog, then importing the former into it. While this seems to work immediately after the import process, as soon as I close it, the problem manifests itself again.
More details that may or (likely) may not help:
- Going to the Develop and Print Modules gives me no problems. However, when I click on Library, Slideshow, or Web, I see the error.
- I upgraded my Mac to the latest patch level after observing this error to no avail.
So it looks like my choices are to create a new file and reimport every single time, or lose all of the work I've done for the past 6 months on thousands of images.
Can anyone please help???? I promise to post the solution when we fix this darn thing so others may benefit. I'd be happy to run through any troubleshooting that y'all would suggest outside of switching to a Canon.
Thanks!!!!
Matt

I'd first check for the existence of a file ending in .lock, which should be present when LR is in use, but if it exists when LR is quit, it can cause problems, and should be deleted.
Please post back your results.

??? I just installed Lightroom 5 from Amazon for my Mac with 10.10.1 software. When I open it I get: "An error occurred when attempting to change modules". It won't import photos and has no side panels under Library. What should I do?

I just installed Lightroom 5 from Amazon for my Mac with 10.10.1 software. When I open it I get: "An error occurred when attempting to change modules". It won't import photos and has no side panels under Library. What should I do?

I Nearly bought from Amazon too but I found a thread from Adobe stating that the only recognized outlet for lightoom is themselves and other outlets serial numbers will not be guaranteed.
THat at was sufficient for me to buy direct from Adobe, hope you get it sorted.

Lightroom trial doesn't show complete menu selections or import button. Also get error message on launch: An error occurred when attempting to change modules. I am unable to find/see the following file to try renaming the SLCache and SLStore files: Sy

Lightroom trial doesn't show complete menu selections or import button. Also get error message on launch: An error occurred when attempting to change modules. I am unable to find/see the following file to try renaming the SLCache and SLStore files: System Library/Application Support/Adobe. Any ideas? I only have 16 days left on the trial and have been unable to get it to work on my Macbook Pro. This is all I am seeing after Lightroom opens. Thanks!

Thanks to both of you for attempting to help. I finally figured out what was wrong . . . it was a Permissions problem. Very frustrating, but after scouring the troubleshooting tips I finally found the one that solved my problem. I had to add a User and give it Read/Write privileges to Lightroom. The file I had to add the User to was Hidden on my Mac, so that added an even bigger challenge to the mystery. Only a few days left on my trial version! I hope I have time to try it out!

Did anyone experience "an error occured when attempting to change modules"?

did anyone have this issue and how was it resolved?

Let's see:
https://forums.adobe.com/search.jspa?q=%22an+error+occured+when+attempting+to+change+modul es%22

Lightroom: "An error occurred when attempting to change modules."

I'm a first time Lightroom(via the Cloud) user (used Capture One before this) and just downloaded it today. The first thing I saw was this error message
"An error occurred when attempting to change modules."
I've updated it to 4.3 and I've tried all the other recommendations I found here:
http://helpx.adobe.com/lightroom/kb/error-changing-modules-lightroom.html
I don't know what Nik products are but I don't believe I have any.
I'm on a Mac running 10.6.8
Removed this preference file I found here:
http://helpx.adobe.com/lightroom/kb/preference-file-locations-lightroom-4.html
So frustrating! Please, can anyone help me???

I can only quote from the webpage that you already visited RE: Permission.
You need to have full permission for reading and writing for the folders and drives that Lr is using - particularly the folder that contains the catalog (i.e. the database Lr is working with).
If you have full permission try re-installing Lr. Un-install it via your OS. And re-install it.
Also, occasionally downloaded programs can become damaged during download - for instance when the download has been interrupted.
Before you re-install, I'd recommend that you download Lr again and use this second download for re-installation.
From the webpage (particularly read the part about Macs):
Solution 5: Set correct permissions on Lightroom folder inside Application Support
The Lightroom folder inside Application Support could have the wrong permissions preventing Lightroom from writing to it which can cause this error.
Navigate to the following folder: /Users/[user name]/Library/Application Support/Adobe/Lightroom
Highlight the Lightroom folder and chose File > Get Information
Under Sharing & Permission, verify that your have Read & Write Privileges. If not, click the padlock icon at the lower right, enter your password when prompted, then click the Read only entry and select Read & Write.
Important: (Mac OS) Apple made the user library folder hidden by default with the release of Mac OS X 10.7. If you need access to files in the hidden library folder to perform Adobe-related troubleshooting, see How to access hidden user library files.
Solution 6: Try a different user account.
Copy the Lightroom folder into a new user account or other existing account on your computer. Then, restart Lightroom. The Lightroom folder is in the following locations:
Windows XP: C:\Documents and Settings\[user name]\Application Data\Adobe\
Windows 7, Vista: [user name]\AppData\Roaming\Adobe\
Mac OS: [user name]/Library/Application Support/Adobe/
Important: (Mac OS) Apple made the user library folder hidden by default with the release of Mac OS X 10.7. If you need access to files in the hidden library folder to perform Adobe-related troubleshooting, see How to access hidden user library files.

Down loaded lightroom 5 and installed but won't open right. On opening Message "an error occurred when attempting to change modules"

Have a Mac Book Air with Lightroom 4 Full Download aboard. Just got an iMac. Wanted to load Lightroom 4 on iMac. Took the Adobe download file off the Mac Air and tried to load it on the iMac. It was successfull but on opening the message "an error occurred when attempting to change modules" appeared. I removed Lightroom 4 and went to Adobe orders and re-downloaded my original order to the iMac. Same effect. Bought full Lightroom 5 hoping to fix but the same message appeared. What's up! Any help?

Error changing modules | Lightroom

When I try to start Lightroom CC i get the following error and the splash screen freezes An error occurred when attempting to change modules.

When I try to start Lightroom CC i get the following error and the splash screen freezes An error occurred when attempting to change modules.

Just had the same issue... went through the steps here: https://helpx.adobe.com/lightroom/kb/error-changing-modules-lightroom.html
For me it was Solution 5. I had to change permissions and add me as a user (only had system access to the folders).

An error occured when attempting to change modules .. how to solve this ? Thanks

Hi there,
I installed Lightroom 5, then it asked it for some directory to create some catalogue. I changed was was given default to me to some other directory. It was a mistake.
Then a message saying "An error occured when attempting to change modules" always popped out when I started Lightroom 5.
In fact I uninstalled and reinstall Lightroom 5 again. Ang it gave me the same message. I am not sure why when I reinstall it, it no longer asked me the directory I wanted to create the catalogue but instead gave me the error message straight away...
Any ideas on how to solve this is greatly appreciated as I desperately need to use this Lightroom 5 ...
Thanks

99jon wrote:
Did you install from CC desktop or from an Adobe download link?
When you click on the install button under the Apps tab within the Creative Cloud desktop app, no serial number is required.
Hi 99Jon,
I installed from CC desktop and you are correct. You are correct, when I install the CC, there is no serial number required or given to me.
Let me explain again the sequence of my problem.
1) I installed the CC desktop after I chose to pay monthly.
2) The installation was perfectly fine, NO asking of serial number
3) I install the Lightroom 5.7.1 without problem and NO asking of serial number too.
4) I run Lightroom 5.7.1 for the first time and it asked me to select a folder for catalogue I didn't select the default directory that it suggested. And this caused problem because it then gives a message saying "An error occurred when attempting to change modules"
5) so I delete the whole Lightroom 5.7.1 and reinstall from CC Apps.
6) The problem still persists and I continue to have the "An error occurred when attempting to change modules" message
7) So I deleted the Lightroom 5.7.1 and reinstall. Problem still persist.
8) So, I did a software update as advised by the link you gave me (ie Solution 1). Interestingly, the update Version is 5.7.1 which I have.
9) After the update installation, I no longer receive "An error occured when attempting to change modules" the message but instead tnow I receive message asking me for serial number. So much problem now ...
Note:
If you see this link, something is wrong bcos when you clicked the settings wheel, you'll see that Managed Application - Uninstall Unavailable"
<a href="http://s32.photobucket.com/user/ryan_khoo/media/ScreenShotofAdobeCC_zpsa6c420e7.jpg.html" target="_blank"><img src="http://i32.photobucket.com/albums/d2/ryan_khoo/ScreenShotofAdobeCC_zpsa6c420e7.jpg" border="0" alt=" photo ScreenShotofAdobeCC_zpsa6c420e7.jpg"/></a>
So now my problem has changed form one where the error message popped up to one which now asked me for serial number ...
Any ideas ?
Thanks

I have Lightroom 5 installed on my MacBook Air but when I try to open the program I receive the message "An error occurred when attempting to change modules". I uninstalled, emptied trash and re-installed but I continue to get the same message.

I have Lightroom 5 installed on my iMac which I downloaded (uploaded?) to my MacBook Air (via wi-fi) but unlike the iMac, I'm unable to use the program on the MacBook Air. When I open the program on the iMac and click 'file', (as people using the program would know) there are 21 options - import pics, export, etc, etc - however, in the version on the MacBook Air, opening 'file' gives me four options - New Catalogue, Open Catalogue, Page Setup and Printer - and with that comes the pop-up message "An error occurred when attempting to change modules". Any ideas please?

A forum thread from 3 years ago talking about LR 1.x which had this problem seems to need permissions fixed or new folders created with the corrected permissions. You might try doing a repair permissions for your user and/or run LR as an administrator user. I am a PC person so cannot tell you exactly how to do that.
https://forums.adobe.com/message/1457020

An error occurred when attempting to change modules.--when i log in as a guest program works fine but when i log in onb my account that pops up

An error occurred when attempting to change modules. this comes up on my account on my mac but not when guest account ?

I fixed the problem myself, no response in chat nor phone (1 hour in hold an no answer) here's the link, step # 5 saved me! Here's the link seems to be a very common problem, hope it works for you! Error changing modules | Lightroom

Lightroom 4: An error occurred when attempting to change modules.

I downloaded Lightroom 4 a few days ago and installed it on my MacBook Pro. Everything worked great. I thought it would overwrite Lightroom 3, but it didn't. So Lightroom 3 is still installed, but I haven't opened it since I installed Lightroom 4.
I downloaded Lightroom 4.3 this morning and installed it on the same MacBook Pro. Using my MacBook Pro and a second monitor, I opened Lightroom 4.3 and worked on some photos. Everything worked great.
Then I began watching a slideshow in the Lightroom 4.3 slideshow module on the second monitor with my MacBook Pro in the library module. During the slideshow I clicked on the slideshow module on my MacBook Pro and got this error message:
An error occurred when attempting to change modules.
Now I can’t get into the slideshow module. I just get the error message.
I moved the preferences file to the trash and reopened Lightroom 4 but lost color labels, so I put it back in the preferences folder.
Thanks for your help

I called Adobe and let them fiddle online with Lightroom on my MacBook Pro. The Adobe tech claims I have a corrupt permissions file. He told me to contact Apple and have them rebuild my permissions file.
When I contacted Apple, the tech said to startup my MackBook Pro with the option key held down until the first screen appears. Then click on: Recovery HD, arrow, Language, Disk Utility, Macintosh HD, Repair Disk Permissions.
I did this three times, but some permissions were not repaired. Another Apple tech then suggested I bring my MackBook Pro to a Macintosh authorized repair shop, and have them repair my permissions file. I asked if I can buy Norton Utilities or a similar program and do it myself. The Apple tech said yes, but an authorized repair person will know which permissions to repair and which ones not to touch.
Unless someone on this forum can tell me how to do this repair myself, I’ll get it repaired next week. And, I’ll post the results as soon as I can.

Error occurred when attempting to change modules [was:Lightroom gone funny]

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