Gatling Sequential scenarios - scala

Question

I'm trying to use gatling and I have a problem.
1- I have one scenario that exec POST request for getting a list of tokens and save all tokens in csv
2- I create another scenario that exec GET request but I need a token for auth each request
My problem is before executing my first scenario my file doesn't exist and I have this following error:
Could not locate feeder file: Resource user-files/resources/token.csv not found
My code :
Scenario 1 :
val auth_app = scenario("App authentication")
.exec(http("App Authentication")
.post("/token")
.header("Content-Type", "application/x-www-form-urlencoded")
.formParamSeq(Seq(("grant_type", "password"), ("client_id", clientID), ("client_secret", clientSecret)))
.check(jsonPath("$.token").saveAs("token")))
.exec(session => {
val token_data = new File(token_file_path)
if(token_data.exists()){
val writer = new PrintWriter(new FileOutputStream(new File(token_file_path), true))
writer.write(session("access_token").as[String].trim)
writer.write("\n")
writer.close()
}
else {
val writer = new PrintWriter(new FileOutputStream(new File(token_file_path), true))
writer.println("AccessToken")
writer.write(session("access_token").as[String].trim)
writer.write("\n")
writer.close()
}
session
})
Scenario 2 :
val load_catalog = scenario("Load catalog")
.exec(http("Load catalog")
.get("/list")
.headers(Map("Content-Type" -> "application/json", "Authorization Bearer" -> "${AccessToken}")))
.feed(csv(token_file_path).random)
My setup :
setUp(
auth_app.inject(atOnceUsers(10)).protocols(httpProtocol),
load_catalog.inject(nothingFor(120 seconds), atOnceUsers(10)).protocols(httpProtocol)
)
Is it possible to have a dynamic feeder with gatling ?