Exception in thread "main" java.lang.NoClassDefFoundError

I have Some issue regarding script simulation.

i m not using IDE or jenkins.

I have set up in my local.

Below is My code:

al headers_48 = Map(
“Content-Type” → “application/x-www-form-urlencoded; charset=UTF-8”,
“X-Requested-With” → “XMLHttpRequest”,
“csrfParam” → “aTfrufMTd/rkmEQ/yEh4g4Cwyk+/ai1aA93FKEKz+eMRGM3SuqAeWA==”,
“csrfToken” → “3PVHOlo6g7h7xi_8AHuGZQYwJB0”)

val uri1 = “http://blrqa07.corp.tangoe.com:18002/MatrixPortal

object GLogin {
val login = group(“Login”) {
exec(http(“request_0”)
.get("/MatrixPortal/login.vw")
.headers(headers_0)
.resources(http(“request_1”)
.get(uri1 + “/common/styles/style.min.css?vt=MTYuMy4wLjM3Ljk”)
.headers(headers_1),
http(“request_2”)
.get(uri1 + “/download-advertisementImage.htm?csrfToken=UHVkZG8xMXhHaEVNS2NOQlBjZVdCeURYZF8w&csrfParam=U2xRcm5jdkljRjVLRHBYODA0QmkxeDFlT1dwK1ArVFNIL0VyWE0yYi9QbWQwWDBuSzh2SXRBPT0=&imagePath=ACPS9GlCYVAZrBkqghwGdLMciAB7bqM2”)
.headers(headers_2),

Console:

D:\Performance\gatling-charts-highcharts-bundle-2.1.7-15.4\bin>gatling.bat
GATLING_HOME is set to “D:\Performance\gatling-charts-highcharts-bundle-2.1.7-15.4”
Choose a simulation number:
[0] BaseSimulationConfig
[1] Batch162Group
[2] Batch162Group1
[3] CostCentersS01
[4] MyMatrixNavigation
3
Select simulation id (default is ‘costcenterss01’). Accepted characters are a-z, A-Z, 0-9, - and _

Select run description (optional)

Simulation CostCentersS01 started…
Exception in thread “main” java.lang.NoClassDefFoundError: CostCentersS01$GLogin$
at CostCentersS01.GLogin$lzycompute(CostCentersS01.scala:47)
at CostCentersS01.GLogin(CostCentersS01.scala:47)
at CostCentersS01.(CostCentersS01.scala:567)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at io.gatling.core.runner.Runner.run(Runner.scala:36)
at io.gatling.app.Gatling$$anonfun$runSimulationIfNecessary$1.apply(Gatling.scala:138)
at io.gatling.app.Gatling$$anonfun$runSimulationIfNecessary$1.apply(Gatling.scala:123)
at scala.Option.getOrElse(Option.scala:121)
at io.gatling.app.Gatling.runSimulationIfNecessary(Gatling.scala:123)
at io.gatling.app.Gatling.start(Gatling.scala:73)
at io.gatling.app.Gatling$.fromArgs(Gatling.scala:59)
at io.gatling.app.Gatling$.main(Gatling.scala:44)
at io.gatling.app.Gatling.main(Gatling.scala)
Caused by: java.lang.ClassNotFoundException: CostCentersS01$GLogin$
at io.gatling.app.classloader.FileSystemBackedClassLoader.findClass(FileSystemBackedClassLoader.scala:70)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
… 17 more
Press any key to continue . . .

What is the issue?? please help me