getActiveSpreadsheet() always returns null

问题

Okay, so I was following this tutorial here about how to set up a simple Google App Script and I was stuck at around the 18:50 mark. I was getting an error message while doning the exact same thing as in the video.

I have this code in my Code.gs file:

function myFunction() {

  var app = SpreadsheetApp;
  var ss = app.getActiveSpreadsheet();
  var activeSheet = ss.getActiveSheet();  

  activeSheet.getRange("D2").setValue(99);

}

and a spreadsheet open in another tab. But everytime I try to run "myFunction" I get the following error message:

TypeError: Cannot call method "getActiveSheet" of null. (line 5, file "Code")

So for some reason var ss = app.getActiveSpreadsheet(); apperently returns null. It works when I replace that line with var ss = app.openById('MySpreadsheetIdHere');, but hard coding the id is really not what I want, I'd like to make this script work with any arbitrary opened spreadsheet.

Running the code via Run > Test as add-on doesn't work either.

From a similar question I gathered that it seems to be hard to reproduce this problem, here's exact steps to reproduce:

open up chrome in guest mode, no extensions or anything
sign in to google drive with my google account
create a spreadsheet and keep it open
go to script.google.com and sign in with that same google account
create a new project and copy/paste the code from above
run "myFunction" 6a. confirm permissions when running it for the first time
get the error

Anyone see what I missed?

回答1:

You missed the step around 2:16 mark create a bounded script: Tools > Script editor...

来源：https://stackoverflow.com/questions/50105012/getactivespreadsheet-always-returns-null

标签

google-apps-script

google-sheets