Android Question b4a v6.0 firebase error after manifest

B4A version: 6.00 BETA #1
.Net version: 4.0.30319.34209
B4XClassifer created
B4XErrorTagger created
B4XClassifer created
B4XErrorTagger created
*** no reuse ***
*** no reuse ***
Gui: 986
Gui: 76
Gui: 59
Gui: 67
Gui: 53
B4XClassifer created
B4XErrorTagger created
B4XClassifer created
B4XErrorTagger created
B4XClassifer created
B4XErrorTagger created
B4XClassifer created
B4XErrorTagger created
B4XClassifer created
B4XErrorTagger created
*** no reuse ***
*** no reuse ***
*** no reuse ***
*** no reuse ***
*** no reuse ***
Gui: 330
ExitCode: 1
Output:
jarsigner: unable to open jar file: bin\temp.ap_

Error:

jarsigner: unable to open jar file: bin\temp.ap_

ManagerSpecialLibraries: building jar - C:\Users\tufan\Dropbox\yeni airline android\Objects\bin\extra\opt.jar
Compilation task: 293.0167
System.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index
   at System.ThrowHelper.ThrowArgumentOutOfRangeException()
   at System.Collections.Generic.List`1.get_Item(Int32 index)
   at Newtonsoft.Json.Linq.JContainer.GetItem(Int32 index)
   at ae.a(String A_0, String A_1)
   at ae.b(String A_0)
   at ae.c(String A_0)
   at ae.a(fq A_0, a9 A_1, String A_2)
   at v.b()
   at a7.a(Object A_0)
Compilation task: 526.0301
Gui: 69

"api_key": [
  {
  "current_key": "AIzaSyBxxxxxxwc-q-Smx3bjd9EZfPA8GaE"
  }
  ],