ReferenceError: "gapi" is not defined. (line 6, file "Code")

[oblacoder]

Hi there!

I've added the library, as you can see from manifest file, but I am receiving the error message within Apps Script editor:
ReferenceError: "gapi" is not defined. (line 6, file "Code")

{
"timeZone": "Europe/Paris",
"dependencies": {
"enabledAdvancedServices": [{
"userSymbol": "Analytics",
"serviceId": "analytics",
"version": "v3"
}],
"libraries": [{
"userSymbol": "VtstGApi",
"libraryId": "1mp-2-XEQwDf66i9bmWz-6u-NjmgNazlutwkgjc-nIpp9BA3LiVEoKLRH",
"version": "3"
}]
},
"exceptionLogging": "STACKDRIVER"
}

What could cause this problem?
Thanks