# Getting error while running gatling test using maven

**URL:** <https://community.gatling.io/t/getting-error-while-running-gatling-test-using-maven/8190>\
**Category:** Gatling (Open-Source)\
**Created:** [August 10, 2023, 1:07pm UTC](https://community.gatling.io/t/getting-error-while-running-gatling-test-using-maven/8190 "2023-08-10T13:07:47Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![harshit](https://avatars.discourse-cdn.com/v4/letter/h/c57346/32.png) [@harshit](https://community.gatling.io/u/harshit)\
**Post date:** [August 10, 2023, 1:07pm UTC](https://community.gatling.io/t/getting-error-while-running-gatling-test-using-maven/8190/1 "2023-08-10T13:07:48Z")

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I am running the test using mvn gatling:test  
I have gatling version : 3.3.1  
Java version : 1  
Scala version 2.13.9  
But I am not able to run the test I keep getting this error  
java.lang.reflect.InvocationTargetException

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.base/java.lang.reflect.Method.invoke(Method.java:566)

at io.gatling.mojo.MainWithArgsInFile.runMain(MainWithArgsInFile.java:50)

at io.gatling.mojo.MainWithArgsInFile.main(MainWithArgsInFile.java:33)

Caused by: java.lang.NoSuchMethodError: scala.Product.$init$(Lscala/Product;)V

at io.gatling.core.cli.CommandLineConstant.(CommandLineConstant.scala:19)

at io.gatling.app.cli.CommandLineConstants$.(CommandLineConstants.scala:22)

at io.gatling.app.cli.CommandLineConstants$.(CommandLineConstants.scala)

at io.gatling.app.cli.ArgsParser$$anon$1.(ArgsParser.scala:30)

at io.gatling.app.cli.ArgsParser.(ArgsParser.scala:28)

at io.gatling.app.Gatling$.fromArgs(Gatling.scala:45)

at io.gatling.app.Gatling$.main(Gatling.scala:38)

at io.gatling.app.Gatling.main(Gatling.scala)

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**Author:** ![slandelle](https://dub1.discourse-cdn.com/flex013/user_avatar/community.gatling.io/slandelle/32/4_2.png) [@slandelle](https://community.gatling.io/u/slandelle)\
**Post date:** [August 10, 2023, 1:27pm UTC](https://community.gatling.io/t/getting-error-while-running-gatling-test-using-maven/8190/2 "2023-08-10T13:27:24Z")

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First, Gatling 3.3.1 is super old, you should definitely upgrade. The latest version is 3.9.5.

Then, Gatling 3.3.1 is only compatible with Scala 2.12, not Scala 2.13. The Scala 2.13 upgrade was done in Gatling 3.5.

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**Author:** ![slandelle](https://dub1.discourse-cdn.com/flex013/user_avatar/community.gatling.io/slandelle/32/4_2.png) [@slandelle](https://community.gatling.io/u/slandelle)\
**Post date:** [August 10, 2023, 1:28pm UTC](https://community.gatling.io/t/getting-error-while-running-gatling-test-using-maven/8190/3 "2023-08-10T13:28:30Z")

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Note: as you’re not familiar with Scala, you should go with Gatling Java instead (only available in modern Gatling versions).

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**Author:** ![harshit](https://avatars.discourse-cdn.com/v4/letter/h/c57346/32.png) [@harshit](https://community.gatling.io/u/harshit)\
**Post date:** [August 10, 2023, 2:15pm UTC](https://community.gatling.io/t/getting-error-while-running-gatling-test-using-maven/8190/5 "2023-08-10T14:15:12Z")

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Thanks for the help.  
earlier error got resolved but getting a new error now  
Can you please help on this  
This is a built project, and it was inactive for some time so can not change the language

java.lang.reflect.InvocationTargetException

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.base/java.lang.reflect.Method.invoke(Method.java:566)

at io.gatling.mojo.MainWithArgsInFile.runMain(MainWithArgsInFile.java:50)

at io.gatling.mojo.MainWithArgsInFile.main(MainWithArgsInFile.java:33)

Caused by: java.lang.NoClassDefFoundError: io/netty/internal/tcnative/CertificateCompressionAlgo

Failed to execute goal io.gatling:gatling-maven-plugin:3.0.3:test **(default-cli)** on project ExpensesMicroService: **Gatling failed.** : Process exited with an error: 255 (Exit value: 255)

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<div class="post-metadata">

**Author:** ![slandelle](https://dub1.discourse-cdn.com/flex013/user_avatar/community.gatling.io/slandelle/32/4_2.png) [@slandelle](https://community.gatling.io/u/slandelle)\
**Post date:** [August 10, 2023, 2:17pm UTC](https://community.gatling.io/t/getting-error-while-running-gatling-test-using-maven/8190/6 "2023-08-10T14:17:55Z")

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@harshit Please don’t hijack an existing and resolved topic. Create a new one instead.

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**Author:** ![system](https://europe1.discourse-cdn.com/flex013/uploads/gatling2/original/2X/b/b148e0742de35c6280726cabf3ecd3de2d320f63.png) [@system](https://community.gatling.io/u/system)\
**Post date:** [September 9, 2023, 2:18pm UTC](https://community.gatling.io/t/getting-error-while-running-gatling-test-using-maven/8190/7 "2023-09-09T14:18:39Z")

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