Post History

It would be much better split into separate questions.

 - Users have to scroll, ctrl-f search, or wade through a lot of info that irrelevant to their problem to get to the section that helps them.
 - From a search engine optimization (SEO) standpoint, you want to create several pages to rank better for searches for different problems.
 - When people ask these basic questions, it makes it much easier to close exact duplicates or link to what is helpful to them.
 - You have created enough content to easily support many pages.

I'd split it up into the following questions:

 - TypeError: Cannot read property
 - Cannot convert some value to data type
 - Cannot call Service and method name from this context
 - Cannot find method Method name here
 - Lacking permission to perform that action
 - ReferenceError: service name is not defined
 - The script completed but did not return anything
 - We're sorry, a server error occurred. Please wait a bit and try again.
 - Syntax error without apparent issues
 - Quota-related errors
 - The number of rows in the range must be at least 1
 - Error: “Reference does not exist”
 - The number of rows or cells in the data does not match the number of rows or cells in the range
 - The coordinates of the range are outside the dimensions of the sheet.
 - Exception: You can't create a filter in a sheet that already has a filter
 - Attribute provided with no value: url

I'd recommend rephrasing each as a question in the form of "How do I deal with X in Google Apps Script?"

Your desire to maintain this content here makes me feel that it would be worth importing it. Another reason to do so would be if you would tend to link to this content from other questions that get asked here.  In that case, it would make a lot of sense not to have to link to SO.

If you do import this content, you'd want to make sure that you don't violate content licenses when you do so.  If it is 100% your own content, I believe you can republish it anywhere as you see fit.  However, if anybody else has made edits to it and you take that version, you need to comply with the creative commons license.  You'd need to link back to the original on SO, name the authors and link to their profiles. 

It wouldn't necessarily have to be deleted at SO to get copied to here. There can be duplicated content between sites as long as it is relatively little compared to the total amount of content. You want at least 50% original content.  I'd make sure that there are at least 20 questions about Google Apps Script here before creating this many canonical questions on the topic. That may mean that you should ask some yourself.

In any case, you may or may not be able to delete this content on SO.  Even though you wrote it, it isn't always yours to delete. SO may see an attempt to do so as self-defacement and restore the content.