# Java Unable to launch the application

**URL:** <https://forum.inductiveautomation.com/t/java-unable-to-launch-the-application/7975>\
**Category:** Ignition\
**Created:** [February 7, 2014, 3:13pm UTC](https://forum.inductiveautomation.com/t/java-unable-to-launch-the-application/7975 "2014-02-07T15:13:43Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![AJBerera](https://avatars.discourse-cdn.com/v4/letter/a/9fc29f/32.png) [@AJBerera](https://forum.inductiveautomation.com/u/AJBerera)\
**Post date:** [February 7, 2014, 3:13pm UTC](https://forum.inductiveautomation.com/t/java-unable-to-launch-the-application/7975/1 "2014-02-07T15:13:43Z")

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Java 7.51  
I am having problems launching any of my projects, some are 7.5.latest, others are 7.6.3, 7.6.4  
I have gotten this error lately, I’m assuming it started around the time I upgraded Java.  
Anyone else experiencing this problem?

Unable to launch the application  
Missing required Permissions manifect attribute in main jar

 CrateandBarrelSCADA Winchester Industrial Controls

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<div class="post-metadata">

**Author:** ![mgross](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/mgross/32/3311_2.png) [@mgross](https://forum.inductiveautomation.com/u/mgross)\
**Post date:** [February 7, 2014, 3:29pm UTC](https://forum.inductiveautomation.com/t/java-unable-to-launch-the-application/7975/2 "2014-02-07T15:29:48Z")

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This error is caused by Java 7u51 tightening permissions on jars downloaded thru JNLP. We added the required permission attribute in 7.5.11 and 7.6.4. You can also add the Gateway URL under a whitelist in the Security tab of the Java Control panel to eliminate this error.