Swift println() not showing autocomplete options while writing code

Question

When I am trying to print using println() function it is not showing autocomplete parameter list in swift. Is there any problem in my Xcode?

I restarted xcode as well as my mac, but still not working. I am using xcode6.1 — Nirmal Choudhari, Feb 10 '15 at 10:47
Possible duplicate of [Xcode 6 Swift code completion not working](http://stackoverflow.com/q/25883905/456814). — Bob, Oct 24 '15 at 09:32

score 37 · Answer 1 · edited Apr 24 '21 at 01:23

37

Delete user/Library/Developer/Xcode/DerivedData and delete the data of folder(Derive data) and restart Xcode. Should work. If doesn't, restart mac after doing this.

Note: for Xcode 11.7 and maybe later, use the ~/Library/Developer/Xcode/DerivedData/ path.

edited Apr 24 '21 at 01:23

shim

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answered Feb 10 '15 at 10:53

Dhruv Ramani

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Then, reinstall xcode. I always keep a installer file with me for such emergency purposes. Good luck :) – Dhruv Ramani Feb 10 '15 at 11:12
Here's a link I found that might help you : http://stackoverflow.com/questions/26783478/xcode-autocomplete-stopped-working – Dhruv Ramani Feb 10 '15 at 11:18
Then you are experiencing NO PROBLEM! There is no autocomplete for println(). Congrats! – Dhruv Ramani Feb 12 '15 at 10:41
Because I think it's just too obvious. println() just takes a string. Any other datatype have to be converted to string in order to use them or otherwise are automatically converted. – Dhruv Ramani Feb 12 '15 at 11:31
Then according to your above comment , var which is of string type should be available in autocomplete list. isn't so? – Nirmal Choudhari Feb 12 '15 at 12:59
Just checked. Doesn't show variable in autocomplete – Dhruv Ramani Feb 12 '15 at 14:47
is it documented anywhere ? – Nirmal Choudhari Feb 13 '15 at 05:09
Works for me, thank you, I did not even have to restart xCode. – shbli Mar 10 '18 at 19:18

score 3 · Accepted Answer · answered Feb 13 '15 at 05:48

Hi I found the reason for this.... As Dhruv mentioned, it only accepts string argument. So we need to convert object to string inline println() function.

For example:

we have integer defined as var age:Int = 24

then we can print this as

println("\(age)")

In this case we will get autocomplete option. On other hand println(age) will print same result as above.

Vladimir Kuzomenskyi · Answer 3 · 2021-05-14T21:48:16.460

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Press cmd + K in your Xcode;
Do context-click on Xcode -> Quit, and the same for Simulator.
Open the project again;
If still doesn't work, you don't need to restart your mac. Write "Int." or some other system type, but not yours that you have issue with and voila!

edited May 14 '21 at 21:48

answered Nov 07 '19 at 19:40

Vladimir Kuzomenskyi

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Swift println() not showing autocomplete options while writing code

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