# List index out of bounds (-1). **URL:** \ **Category:** Toad for Oracle & DevOps Toolkit\ **Created:** [December 15, 2011, 2:58am UTC](https://forums.toadworld.com/t/list-index-out-of-bounds-1/10925 "2011-12-15T02:58:25Z")\ **Posts on this page:** 15\ **Page:** 1
**Author:** ![acip](https://avatars.discourse-cdn.com/v4/letter/a/c67d28/32.png) [@acip](https://forums.toadworld.com/u/acip)\ **Post date:** [December 15, 2011, 2:58am UTC](https://forums.toadworld.com/t/list-index-out-of-bounds-1/10925/1 "2011-12-15T02:58:25Z")
SEE ATTACHMENT acip.vcf (298 Bytes) att1.dat (43 Bytes) [acip.vcf](https://global.discourse-cdn.com/quest/original/2X/7/7d6e70093e1105a08609b00ed961cb29691a27af.vcf) (328 Bytes) ---
**Author:** ![Guest](https://avatars.discourse-cdn.com/v4/letter/g/8dc957/32.png) [@Guest](https://forums.toadworld.com/u/Guest)\ **Post date:** [December 15, 2011, 8:00am UTC](https://forums.toadworld.com/t/list-index-out-of-bounds-1/10925/2 "2011-12-15T08:00:49Z")
We've seen this happen when Toad is installed over top of an older Toad version, or 2 versions of Toad are pointing to the same application data folder. Close Toad. Go to options \> General and locate your application data folder. Remove the folder named after the version of Toad (11.1). Run Toad and when prompted you can then let Toad migrate your user files over from a previous version. If you actually installed Toad 11.1 into an existing Toad folder, I suggest you uninstall all instances of Toad on your machine and re-install into their own, fresh directories. ![image001.jpeg](https://global.discourse-cdn.com/quest/original/2X/f/f50866b86aeb034895254e135b6411f813034ab3.jpeg) ---
**Author:** ![Guest](https://avatars.discourse-cdn.com/v4/letter/g/8dc957/32.png) [@Guest](https://forums.toadworld.com/u/Guest)\ **Post date:** [December 15, 2011, 8:07am UTC](https://forums.toadworld.com/t/list-index-out-of-bounds-1/10925/3 "2011-12-15T08:07:49Z")
Each TOAD version installed in different folder still you get this message. Probably TOAD guys can tell the solution, it is an internal. FYI this message was displayed when I had only one version of TOAD ![image001.jpeg](https://global.discourse-cdn.com/quest/original/2X/f/f50866b86aeb034895254e135b6411f813034ab3.jpeg) ---
**Author:** ![mstaszew](https://sea1.discourse-cdn.com/quest/user_avatar/forums.toadworld.com/mstaszew/32/23_2.png) [@mstaszew](https://forums.toadworld.com/u/mstaszew)\ **Post date:** [December 15, 2011, 8:37am UTC](https://forums.toadworld.com/t/list-index-out-of-bounds-1/10925/4 "2011-12-15T08:37:22Z")
Did you copy user files from a previous installation instead of using the official method of migration from the Toad initial setup wizard? You can confirm that Toad is using the new user files if the files in your \RuleSets folder have a modified date of August 17, 2011. If they have a modified date of March 29, 2006 then you have old user files and you should follow Brad's suggestion of removing your appdata folder and starting Toad. Michael ![image001.jpeg](https://global.discourse-cdn.com/quest/original/2X/f/f50866b86aeb034895254e135b6411f813034ab3.jpeg) ---
**Author:** ![Guest](https://avatars.discourse-cdn.com/v4/letter/g/8dc957/32.png) [@Guest](https://forums.toadworld.com/u/Guest)\ **Post date:** [December 15, 2011, 8:53am UTC](https://forums.toadworld.com/t/list-index-out-of-bounds-1/10925/5 "2011-12-15T08:53:08Z")
Didn’t copy any file from user file. Also I don’t get migrate any file while installing new version. I allow the new version to be totally new. ![image001.jpeg](https://global.discourse-cdn.com/quest/original/2X/f/f50866b86aeb034895254e135b6411f813034ab3.jpeg) ---
**Author:** ![mstaszew](https://sea1.discourse-cdn.com/quest/user_avatar/forums.toadworld.com/mstaszew/32/23_2.png) [@mstaszew](https://forums.toadworld.com/u/mstaszew)\ **Post date:** [December 15, 2011, 9:56am UTC](https://forums.toadworld.com/t/list-index-out-of-bounds-1/10925/6 "2011-12-15T09:56:15Z")
Please send the Toad.elf in your appdata folder. Thanks. ![image001.jpeg](https://global.discourse-cdn.com/quest/original/2X/f/f50866b86aeb034895254e135b6411f813034ab3.jpeg) ---
**Author:** ![Guest](https://avatars.discourse-cdn.com/v4/letter/g/8dc957/32.png) [@Guest](https://forums.toadworld.com/u/Guest)\ **Post date:** [December 15, 2011, 10:49am UTC](https://forums.toadworld.com/t/list-index-out-of-bounds-1/10925/7 "2011-12-15T10:49:28Z")
I recall seeing this with a corrupted … was it keyboard? … file. Deleting that file cleared up the issue for me. Roger S. ![image002.jpeg](https://global.discourse-cdn.com/quest/original/2X/e/ed39034d6299ae5d3a7932b7709cec79279eeeed.jpeg) ---
**Author:** ![mstaszew](https://sea1.discourse-cdn.com/quest/user_avatar/forums.toadworld.com/mstaszew/32/23_2.png) [@mstaszew](https://forums.toadworld.com/u/mstaszew)\ **Post date:** [December 15, 2011, 11:18am UTC](https://forums.toadworld.com/t/list-index-out-of-bounds-1/10925/8 "2011-12-15T11:18:21Z")
I am about 99.99% positive that closing Toad and deleting the appdata\Rule Sets folder will resolve the issue. It has been the case in all previously reported instances of this new tab LIOOB error in Toad 11. I was trying to get more information out of the user as to what they did during installation to assist with future cases. It would be helpful if the original poster would list the modified dates of the rule sets files. I know they said a new installation, but evidence shown in all previous cases revealed copied rule sets from another installation. This is the 4th or so case of this and we'll most certainly see more of them as more users upgrade. Michael ![image002.jpeg](https://global.discourse-cdn.com/quest/original/2X/e/ed39034d6299ae5d3a7932b7709cec79279eeeed.jpeg) ---
**Author:** ![Guest](https://avatars.discourse-cdn.com/v4/letter/g/8dc957/32.png) [@Guest](https://forums.toadworld.com/u/Guest)\ **Post date:** [December 15, 2011, 11:22am UTC](https://forums.toadworld.com/t/list-index-out-of-bounds-1/10925/9 "2011-12-15T11:22:16Z")
[ Attachment(s) from Malyavantham, Krishnamurthy T (Education Cabinet) included below] ![image001.jpeg](https://global.discourse-cdn.com/quest/original/2X/f/f50866b86aeb034895254e135b6411f813034ab3.jpeg) ---
**Author:** ![mstaszew](https://sea1.discourse-cdn.com/quest/user_avatar/forums.toadworld.com/mstaszew/32/23_2.png) [@mstaszew](https://forums.toadworld.com/u/mstaszew)\ **Post date:** [December 15, 2011, 12:10pm UTC](https://forums.toadworld.com/t/list-index-out-of-bounds-1/10925/10 "2011-12-15T12:10:43Z")
This Toad.elf is reporting errors from Toad 9.6.1.1 including an AV that occurred yesterday and another AV from Toad 11 on November 30th. It appears as though you have multiple copies of Toad running from the same appdata folder. ![image001.jpeg](https://global.discourse-cdn.com/quest/original/2X/f/f50866b86aeb034895254e135b6411f813034ab3.jpeg) ---
**Author:** ![mstaszew](https://sea1.discourse-cdn.com/quest/user_avatar/forums.toadworld.com/mstaszew/32/23_2.png) [@mstaszew](https://forums.toadworld.com/u/mstaszew)\ **Post date:** [December 15, 2011, 12:11pm UTC](https://forums.toadworld.com/t/list-index-out-of-bounds-1/10925/11 "2011-12-15T12:11:58Z")
Correction, my ELF reader has merged results. Your errors in that ELF are all from Toad 9.6.1.1 including an AV from yesterday. Check your AppData folder for your Toad 11 installation. It’s location can be found in Options|General. ![~WRD000.jpeg](https://global.discourse-cdn.com/quest/original/2X/5/52d5f1c08649212fe6768d2cacdcf8df711810d9.jpeg) ---
**Author:** ![mstaszew](https://sea1.discourse-cdn.com/quest/user_avatar/forums.toadworld.com/mstaszew/32/23_2.png) [@mstaszew](https://forums.toadworld.com/u/mstaszew)\ **Post date:** [December 15, 2011, 12:11pm UTC](https://forums.toadworld.com/t/list-index-out-of-bounds-1/10925/12 "2011-12-15T12:11:58Z")
Correction, my ELF reader has merged results. Your errors in that ELF are all from Toad 9.6.1.1 including an AV from yesterday. Check your AppData folder for your Toad 11 installation. It's location can be found in Options|General. ![image001.jpeg](https://global.discourse-cdn.com/quest/original/2X/f/f50866b86aeb034895254e135b6411f813034ab3.jpeg) ---
**Author:** ![mstaszew](https://sea1.discourse-cdn.com/quest/user_avatar/forums.toadworld.com/mstaszew/32/23_2.png) [@mstaszew](https://forums.toadworld.com/u/mstaszew)\ **Post date:** [December 15, 2011, 12:11pm UTC](https://forums.toadworld.com/t/list-index-out-of-bounds-1/10925/13 "2011-12-15T12:11:58Z")
Correction, my ELF reader has merged results. Your errors in that ELF are all from Toad 9.6.1.1 including an AV from yesterday. Check your AppData folder for your Toad 11 installation. It’s location can be found in Options|General. ![image001.jpeg](https://global.discourse-cdn.com/quest/original/1X/e8288ef7bf69daaab6959f752b25ca292478b911.jpeg) ---
**Author:** ![acuhadar](https://avatars.discourse-cdn.com/v4/letter/a/aca169/32.png) [@acuhadar](https://forums.toadworld.com/u/acuhadar)\ **Post date:** [November 15, 2013, 7:54am UTC](https://forums.toadworld.com/t/list-index-out-of-bounds-1/10925/14 "2013-11-15T07:54:32Z")
I am having the same issue. I followed your instructions to remove all previous versions and reinstall 12.1 and I’m still getting the error. Please advise where Options|General is as I have no clue as to what that means… ---
**Author:** ![mstaszew](https://sea1.discourse-cdn.com/quest/user_avatar/forums.toadworld.com/mstaszew/32/23_2.png) [@mstaszew](https://forums.toadworld.com/u/mstaszew)\ **Post date:** [November 15, 2013, 7:59am UTC](https://forums.toadworld.com/t/list-index-out-of-bounds-1/10925/15 "2013-11-15T07:59:30Z")
This is a two year old thread. Options|General just means the General page in the Options dialog. Send the Toad.el file in your user files folder. On 11/15/2013 10:55 AM, acuhadar wrote: > **[RE: List index out of bounds (-1).](http://www.toadworld.com/products/toad-for-oracle/f/10/p/10683/42577.aspx#42577)** > Reply by acuhadar > I am having the same issue. I followed your instructions to remove all previous versions and reinstall 12.1 and I'm still getting the error. Please advise where Options|General is as I have no clue as to what that means... > To reply, please reply-all to this email. > > [Stop receiving emails](http://www.toadworld.com/products/toad-for-oracle/f/10/t/10683.aspx?subscribe=false) on this subject. > > Or [ > Unsubscribe from Toad for Oracle - General](http://www.toadworld.com/products/toad-for-oracle/f/10.aspx?subscribe=false) notifications altogether. > > Toad for Oracle - Discussion Forum > [Flag](http://www.toadworld.com/products/toad-for-oracle/f/10/p/10683/42577.aspx?AbuseContentId=5b20d791-da96-449f-826f-04ffadb2e63c&AbuseContentTypeId=f586769b-0822-468a-b7f3-a94d480ed9b0&AbuseFlag=true) > this post as spam/abuse. > ![](https://global.discourse-cdn.com/quest/original/3X/5/0/50b30fd5f87c85fe5cba2635cb83316ca71250d7.gif)