# Designer application blocked by Java Security!

**URL:** <https://forum.inductiveautomation.com/t/designer-application-blocked-by-java-security/11285>\
**Category:** Module Development\
**Created:** [February 29, 2016, 1:42pm UTC](https://forum.inductiveautomation.com/t/designer-application-blocked-by-java-security/11285 "2016-02-29T13:42:12Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![PRAMANJ](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pramanj/32/66935_2.png) [@PRAMANJ](https://forum.inductiveautomation.com/u/PRAMANJ)\
**Post date:** [February 29, 2016, 1:42pm UTC](https://forum.inductiveautomation.com/t/designer-application-blocked-by-java-security/11285/1 "2016-02-29T13:42:12Z")

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Hi,

Strange thing happened! Today when I try to launch the designer from the Ignition Gateway Home page I get "Application Blocked by Java Security" error window! What could be the reason? How to overcome it?

regards  
PRAMANJ

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**Author:** ![KathyApplebaum](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kathyapplebaum/32/7261_2.png) [@KathyApplebaum](https://forum.inductiveautomation.com/u/KathyApplebaum)\
**Post date:** [February 29, 2016, 3:21pm UTC](https://forum.inductiveautomation.com/t/designer-application-blocked-by-java-security/11285/2 "2016-02-29T15:21:53Z")

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[Knowledge base article](https://support.inductiveautomation.com/index.php?/Knowledgebase/Article/View/102/0/ignition-client-blocked-by-java-security-settings-certificate-expired) about this.

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**Author:** ![PRAMANJ](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pramanj/32/66935_2.png) [@PRAMANJ](https://forum.inductiveautomation.com/u/PRAMANJ)\
**Post date:** [February 29, 2016, 6:05pm UTC](https://forum.inductiveautomation.com/t/designer-application-blocked-by-java-security/11285/3 "2016-02-29T18:05:22Z")

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Thanks Kathy,  
I am trying to install the new version 7.8.1 (I had 7.8.0 installed).

regards  
PRAMANJ