# As error has occured .Please see log file null **URL:** \ **Category:** Web Testing\ **Tags:** katalon-studio\ **Created:** [December 27, 2019, 12:37pm UTC](https://forum.katalon.com/t/as-error-has-occured-please-see-log-file-null/37977 "2019-12-27T12:37:05Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![nanda131985](https://avatars.discourse-cdn.com/v4/letter/n/f17d59/32.png) [@nanda131985](https://forum.katalon.com/u/nanda131985)\ **Post date:** [December 27, 2019, 12:37pm UTC](https://forum.katalon.com/t/as-error-has-occured-please-see-log-file-null/37977/1 "2019-12-27T12:37:05Z")
When i open Katalon stuido 7.1.0 , As error has occured .Please see log file null ---
**Author:** ![Marek\_Melocik](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/marek_melocik/32/371_2.png) [@Marek\_Melocik](https://forum.katalon.com/u/Marek_Melocik)\ **Post date:** [December 27, 2019, 12:37pm UTC](https://forum.katalon.com/t/as-error-has-occured-please-see-log-file-null/37977/2 "2019-12-27T12:37:27Z")
Hello, could you attach your log file here? ---
**Author:** ![nanda131985](https://avatars.discourse-cdn.com/v4/letter/n/f17d59/32.png) [@nanda131985](https://forum.katalon.com/u/nanda131985)\ **Post date:** [December 27, 2019, 1:06pm UTC](https://forum.katalon.com/t/as-error-has-occured-please-see-log-file-null/37977/3 "2019-12-27T13:06:36Z")
Not able to see the log file .Can you tell me how to check logs . When i try to open the tool that time itself throwing the above mentioned error. ---
**Author:** ![Russ\_Thomas](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/russ_thomas/32/11884_2.png) [@Russ\_Thomas](https://forum.katalon.com/u/Russ_Thomas)\ **Post date:** [December 27, 2019, 1:10pm UTC](https://forum.katalon.com/t/as-error-has-occured-please-see-log-file-null/37977/4 "2019-12-27T13:10:43Z")
```auto \config\.metadata\.log ``` ---
**Author:** ![Brandon\_Hein](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/brandon_hein/32/1092_2.png) [@Brandon\_Hein](https://forum.katalon.com/u/Brandon_Hein)\ **Post date:** [December 27, 2019, 6:22pm UTC](https://forum.katalon.com/t/as-error-has-occured-please-see-log-file-null/37977/6 "2019-12-27T18:22:31Z")
![image](https://europe1.discourse-cdn.com/katalon/original/2X/b/b6ac2be1689f2db19bd78e6291cab1fe17e60b05.png) > [@anon46315158](#): > > > Please see log file null > > After that you say there is no log file. > Would you decide? It’s obvious they are having trouble, Ibus. You can either offer helpful feedback, or continue to troll. Would you decide? ---
**Author:** ![Brandon\_Hein](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/brandon_hein/32/1092_2.png) [@Brandon\_Hein](https://forum.katalon.com/u/Brandon_Hein)\ **Post date:** [December 27, 2019, 7:21pm UTC](https://forum.katalon.com/t/as-error-has-occured-please-see-log-file-null/37977/8 "2019-12-27T19:21:39Z")
> [@anon46315158](#): > > Without relevant info there is no real help. I agree. However, a reasonable person would then _proceed to ask for the relevant information_, instead of providing completely unhelpful, rude feedback that does nothing to help the community and only serves to inflate your own ego. ---
**Author:** ![anon46315158](https://avatars.discourse-cdn.com/v4/letter/a/73ab20/32.png) [@anon46315158](https://forum.katalon.com/u/anon46315158)\ **Post date:** [December 27, 2019, 7:25pm UTC](https://forum.katalon.com/t/as-error-has-occured-please-see-log-file-null/37977/9 "2019-12-27T19:25:27Z")
@Brandon_Hein i only highlighted some lack of info in the op post. From where the ego discussion? ---
**Author:** ![Brandon\_Hein](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/brandon_hein/32/1092_2.png) [@Brandon\_Hein](https://forum.katalon.com/u/Brandon_Hein)\ **Post date:** [December 27, 2019, 7:28pm UTC](https://forum.katalon.com/t/as-error-has-occured-please-see-log-file-null/37977/10 "2019-12-27T19:28:17Z")
> [@anon46315158](#): > > > Please see log file null > > After that you say there is no log file. > **Would you decide?** Would you say that this post was helpful in any way? What does this feedback look like to the OP? To me, it just looks like a jab at someone. ---
**Author:** ![anon46315158](https://avatars.discourse-cdn.com/v4/letter/a/73ab20/32.png) [@anon46315158](https://forum.katalon.com/u/anon46315158)\ **Post date:** [December 27, 2019, 7:31pm UTC](https://forum.katalon.com/t/as-error-has-occured-please-see-log-file-null/37977/11 "2019-12-27T19:31:17Z")
I just asked from where that ‘null’ came. ---
**Author:** ![Brandon\_Hein](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/brandon_hein/32/1092_2.png) [@Brandon\_Hein](https://forum.katalon.com/u/Brandon_Hein)\ **Post date:** [December 27, 2019, 7:32pm UTC](https://forum.katalon.com/t/as-error-has-occured-please-see-log-file-null/37977/12 "2019-12-27T19:32:20Z")
No. No you didn’t. ---
**Author:** ![nanda131985](https://avatars.discourse-cdn.com/v4/letter/n/f17d59/32.png) [@nanda131985](https://forum.katalon.com/u/nanda131985)\ **Post date:** [December 30, 2019, 5:35am UTC](https://forum.katalon.com/t/as-error-has-occured-please-see-log-file-null/37977/14 "2019-12-30T05:35:27Z")
Thanks for the information. In the log i am seeing the message " MESSAGE The workspace exited with unsaved changes in the previous session; refreshing workspace to recover changes. Could not find element with Id ‘com.kms.katalon.composer.webservice.handledmenuitem.webServiceRequest’ Not a valid list position. ---
**Author:** ![Russ\_Thomas](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/russ_thomas/32/11884_2.png) [@Russ\_Thomas](https://forum.katalon.com/u/Russ_Thomas)\ **Post date:** [December 30, 2019, 12:23pm UTC](https://forum.katalon.com/t/as-error-has-occured-please-see-log-file-null/37977/15 "2019-12-30T12:23:36Z")
> [@nanda131985](#): > > Thanks for the information. In the log i am seeing the message " MESSAGE The workspace exited with unsaved changes in the previous session; refreshing workspace to recover changes. I see that a lot, too. It doesn’t seem to be a problem. > [@nanda131985](#): > > Could not find element with Id ‘com.kms.katalon.composer.webservice.handledmenuitem.webServiceRequest’ > Not a valid list position. That doesn’t seem relevant to Katalon not starting up correctly. Please delete RENAME the log file and then restart Katalon. It will create a new `.log` file. Follow @Brandon_Hein’s advice to upload it here. ---
**Author:** ![nanda131985](https://avatars.discourse-cdn.com/v4/letter/n/f17d59/32.png) [@nanda131985](https://forum.katalon.com/u/nanda131985)\ **Post date:** [December 30, 2019, 1:23pm UTC](https://forum.katalon.com/t/as-error-has-occured-please-see-log-file-null/37977/16 "2019-12-30T13:23:15Z")
ok wil do as per you suggested . Thanks ---
**Author:** ![nanda131985](https://avatars.discourse-cdn.com/v4/letter/n/f17d59/32.png) [@nanda131985](https://forum.katalon.com/u/nanda131985)\ **Post date:** [December 31, 2019, 9:38am UTC](https://forum.katalon.com/t/as-error-has-occured-please-see-log-file-null/37977/17 "2019-12-31T09:38:20Z")
Not to find RENAME log file ![katalon_1](https://europe1.discourse-cdn.com/katalon/original/2X/f/fb0713dd397647aeaf4667fd7f5d73ae921470a0.jpeg) ---
**Author:** ![anon46315158](https://avatars.discourse-cdn.com/v4/letter/a/73ab20/32.png) [@anon46315158](https://forum.katalon.com/u/anon46315158)\ **Post date:** [December 31, 2019, 10:11am UTC](https://forum.katalon.com/t/as-error-has-occured-please-see-log-file-null/37977/18 "2019-12-31T10:11:04Z")
@nanda131985 just delete **everything** from the **.metadata** folder when katalon is closed, and start it again. a new **.log** file will be created ---
**Author:** ![sraj](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/sraj/32/23869_2.png) [@sraj](https://forum.katalon.com/u/sraj)\ **Post date:** [October 31, 2023, 7:17pm UTC](https://forum.katalon.com/t/as-error-has-occured-please-see-log-file-null/37977/19 "2023-10-31T19:17:48Z")
[.log](https://forum.katalon.com/uploads/short-url/d70iF6qZ1YIaTkiPJ5Gp8SYI2g7) (36.8 KB) here’s the log file, can you please help me ? thanks alot ---
**Author:** ![grylion54](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/grylion54/32/16265_2.png) [@grylion54](https://forum.katalon.com/u/grylion54)\ **Post date:** [October 31, 2023, 7:50pm UTC](https://forum.katalon.com/t/as-error-has-occured-please-see-log-file-null/37977/20 "2023-10-31T19:50:54Z")
From your log I see, > [@](#): > > ObjectNotFoundException: Tree element ‘/C%%Users%sraj%Katalon Studio%Sample Mobile Test Katalon%Android Mobile Tests with Katalon Studio.prj’ not found. So, how about resetting your project with the following. 1. Close your Katalon project 2. Delete folders ```auto /bin /Libs /.cache /.classpath /.project ``` — these folders are safe to delete as they will be recreated. 1. Reopen your project ---
**Author:** ![rismat](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/rismat/32/16104_2.png) [@rismat](https://forum.katalon.com/u/rismat)\ **Post date:** [November 8, 2023, 3:03pm UTC](https://forum.katalon.com/t/as-error-has-occured-please-see-log-file-null/37977/21 "2023-11-08T15:03:34Z")
Hello, I am having the same issue. I cannot open Katalon v9.0.0 See the attached log file. What should I do? Please help… ![image](https://europe1.discourse-cdn.com/katalon/original/3X/1/0/1031e2798bc289b0eb02c9ada87d57b358dd9c3a.png) [.log](https://forum.katalon.com/uploads/short-url/gPJ0IsPkSjCJ3ol9zpNcU77gQEJ) (39.8 KB) ---
**Author:** ![duyluong](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/duyluong/32/1116_2.png) [@duyluong](https://forum.katalon.com/u/duyluong)\ **Post date:** [November 8, 2023, 3:22pm UTC](https://forum.katalon.com/t/as-error-has-occured-please-see-log-file-null/37977/22 "2023-11-08T15:22:28Z")
@rismat Did you update from v8 or downloading new version? ---
**Author:** ![rismat](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/rismat/32/16104_2.png) [@rismat](https://forum.katalon.com/u/rismat)\ **Post date:** [November 8, 2023, 4:07pm UTC](https://forum.katalon.com/t/as-error-has-occured-please-see-log-file-null/37977/23 "2023-11-08T16:07:36Z")
I downloaded the new version from the Katalon site as the Katalon app was not giving the v9.0.0 download option. I had v8.6.8 before. ![image](https://europe1.discourse-cdn.com/katalon/original/3X/a/5/a52ce7108712235c0f2614da26c66f93eec2885d.png) [Next page](https://forum.katalon.com/t/as-error-has-occured-please-see-log-file-null/37977.md?page=2)