# NoSuchSessionException Error

**URL:** <https://forum.katalon.com/t/nosuchsessionexception-error/82263>\
**Category:** Mobile Testing\
**Tags:** mobile-testing, katalon-studio\
**Created:** [January 11, 2023, 11:48am UTC](https://forum.katalon.com/t/nosuchsessionexception-error/82263 "2023-01-11T11:48:07Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![eng\_mohamed\_mahmoud](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/eng_mohamed_mahmoud/32/20464_2.png) [@eng\_mohamed\_mahmoud](https://forum.katalon.com/u/eng_mohamed_mahmoud)\
**Post date:** [January 11, 2023, 11:48am UTC](https://forum.katalon.com/t/nosuchsessionexception-error/82263/1 "2023-01-11T11:48:07Z")

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![katalon error](https://europe1.discourse-cdn.com/katalon/original/3X/1/f/1f36079062f2e15e145b2071e0806775d668b992.png)

Hi all,  
I am try to make automation testing on android mobile but this error always appeared when tried to record test case and the mobile is connected via vysor.

Please advice  
Thanks in advance

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**Author:** ![Elly\_Tran](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/elly_tran/32/21874_2.png) [@Elly\_Tran](https://forum.katalon.com/u/Elly_Tran)\
**Post date:** [January 12, 2023, 9:11am UTC](https://forum.katalon.com/t/nosuchsessionexception-error/82263/2 "2023-01-12T09:11:32Z")

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Hi,

You can found similar issue here: [Unable to Capture objects | ExecutionException | java.lang.NullPointerException](http://forum.katalon.com/t/unable-to-capture-objects-executionexception-java-lang-nullpointerexception/13191)