# Error Recording Using Gatling Tool

**URL:** <https://community.gatling.io/t/error-recording-using-gatling-tool/4838>\
**Category:** Gatling (Open-Source)\
**Created:** [February 25, 2019, 5:45am UTC](https://community.gatling.io/t/error-recording-using-gatling-tool/4838 "2019-02-25T05:45:07Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Mohini\_Nemade](https://avatars.discourse-cdn.com/v4/letter/m/5f9b8f/32.png) [@Mohini\_Nemade](https://community.gatling.io/u/Mohini_Nemade)\
**Post date:** [February 25, 2019, 5:45am UTC](https://community.gatling.io/t/error-recording-using-gatling-tool/4838/1 "2019-02-25T05:45:07Z")

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Hi, i am getting warnings in console as below:

11:04:03.811 [WARN] i.n.c.DefaultChannelPipeline - An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means  
the last handler in the pipeline did not handle the exception.  
**javax.net.ssl.SSLException: Received fatal alert: bad\_certificate**

11:06:03.864 [WARN] i.n.c.DefaultChannelPipeline - An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means  
the last handler in the pipeline did not handle the exception.  
**javax.crypto.AEADBadTagException: Tag mismatch!**

My Configurations:  
HTTPS Mode - Self Signed Cerificate  
HTTPS Proxy - Localhost 8000  
Accesing application site using VPN Connection  
Gatling Version - 3.0.3  
Added exception certificate in firefox browser (Using firefox)

If i continue recording with these warnings, and at the ened open scala file, it seems nothing is recorded.

Please help me knowing whats wrong,

Thanks in advance,  
Mohini Nemade