Keep getting Error in saving the script. The script must have one indicator() or strategy() or library() function call - strategy-pattern

Can someone please help me with the error I keep getting and does not even save.
The script must have one indicator() or strategy() or library() function call

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AT command get caller number when already in another call

I am using SIM900A card and currently working on AT commands.
I am trying to get caller number when I am already in another call.
In theory I should get "CLIP+ number", this only works when I am not in communication.
During a call, when someone calls me, I get "RING". I want the number of the second caller..
I got an answer, I thought someone might benefit from it.
I actually used AT+CLCC which show my calls log. From this log I extracted the number using substring.
This document helped me a lot : https://www.usr.cn/Down/Development/USR-GPRS-AT_Commnad_Set_V5.00.pdf

React seems to be mangling variable names and then complaining they don't exist

Over the weekend, this bug (see attached image) appears to have crept in, I'm thinkning it was a dependency update, since the variable it's complaining about "_onAssign" does not appear once in the entire code base and the actual variable "onAssign" is defined in every case I have tested.
Is this a known result from something could I have done? (I'm still quite new to javascript and front end development, so that is enitirely possible)
extra note, this is not new code, and was working up until Friday evening, now all our builds are failing with this exact error.
_onAssign is not used anywhere, in any of our files, so it is rightly undefined. I would like to call the function onAssign
You need to console log that function and comment the whole other code so you won't get any error then see what it logs in the console and from there you can find out what is causing the error .

Understanding Build Error: Method code too large

When sending Andoird Build to server I get the following build error:
Error! Failed to transform some classes java.lang.RuntimeException:
Method code too large! at
net.orfjackal.retrolambda.asm.MethodWriter.getSize(MethodWriter.java:2036)
at
net.orfjackal.retrolambda.asm.ClassWriter.toByteArray(ClassWriter.java:827)
at
net.orfjackal.retrolambda.Transformers.transform(Transformers.java:121)
at
net.orfjackal.retrolambda.Transformers.transform(Transformers.java:106)
at
net.orfjackal.retrolambda.Transformers.backportClass(Transformers.java:46)
at net.orfjackal.retrolambda.Retrolambda.run(Retrolambda.java:72) at
net.orfjackal.retrolambda.Main.main(Main.java:26)
I must confess I'm not sure why this is occurring as I do not references these classes. Could someone please explain how to track down the cause and fix it? I have not added any new imports since the last successful build :/ My project is also set to use Java 8. Not sure where to go from here to be honest.
there is a hard limit on the size of methods in a class file of 64k. You have at least one big method that you need to split up. It may have been coming in just under the limit for the initial compilation but the retrolambda conversion just pushed it over. You need to split these methods into smaller methods.
This error doesnt really give you a clue as to which methods are problematic but you can probably eyeball it.

"conn 0x7f7d6c001610 error: i=-2 errno=11 state=4 rc=3 br=721" Appearing in nxweb log

I am writing a custom handler and wanted to see how stable it is and just let my browser request the same URL over and over. It doesn't crash but I get some messages like the one in the title.
I.e.
conn 0x7f7d6c001610 error: i=-2 errno=11 state=4 rc=3 br=721
This also happens when I execute the "hello" example but far less often.
Could you give me any pointers as to why this happens? Do I have to fix this?
This error report is not critical. This means connection to client dropped for some reason before request has been fulfilled.

What's is the right way to trigger an error callback in Backbone if my response has a certain flag?

This is my use case: I call fetch on a collection and receive a JSON from my server yet I have an error flag. This will always trigger the success flow, and I can detect the error by 2 means:
In my parse method - which is ugly.
By not using the success option, and using the Deferred's Done callback to check for the error. This is ugly as well since I have to call parse myself afterwards.
This would be solveable if Backbone had a validate function on collection but it doesn't...
Any suggestions?
EDIT: I know there's a way to do it by supplying my own Sync method but I got a bit lost there...
good question.. I'm not sure it's so bad to work with the parse method. It's name doesn't fit but it's all you've got in the natural path of the code and I guess you can just return an empty list without breaking anything.
The question to me is what is the cause of the error? If it's, say, a permissions thing (or some other error covered by the http protocol), you could return an error code from the server which should trigger your error callback..

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