macOS Larazus exit code 1, error 3

[statjy]

I am using Laraus on my mac for the first time. I follow the tutorial, add 2 buttons and compile. The message pop out with 'exit code 1, error 3'. I checked the error 3 is about the path to the directory so I saved the unit and project in a fold that I can access. But the error is still there. What should I do? Thanks in advance.

The error message is: "
Target:project1: exit code 1,error: 3
Error: linker: Undefined symbols for architecture i386:
Error: linker:   "start", referenced from:
ld: symbol(s) not found for architecture i386
An error occurred while linking
project1.lpr(23,0) Error: Error while linking
"

[jwdietrich]

Can you provide a simple demo project, so that we can reproduce the error? And, please note, which versions of Lazarus, Free Pascal and macOS you use.

[Trenatos]

Should be targeting x86 and Cocoa.

[statjy]

Can you provide a simple demo project, so that we can reproduce the error? And, please note, which versions of Lazarus, Free Pascal and macOS you use.

My Lazarus is 2.0.0
FPC 3.0.4
MacOS is 10.14.5

I am not sure how to give the demo project. I included the project I am using below

Code: Pascal  [Select]

1. program project1;
2.  
3. {$mode objfpc}{$H+}
4.  
5. uses
6.   {$IFDEF UNIX}{$IFDEF UseCThreads}
7.   cthreads,
8.   {$ENDIF}{$ENDIF}
9.   Interfaces, // this includes the LCL widgetset
10.   Forms, Unit1
11.   { you can add units after this };
12.  
13. {$R *.res}
14.  
15. begin
16.   RequireDerivedFormResource:=True;
17.   Application.Scaled:=True;
18.   Application.Initialize;
19.   Application.CreateForm(TForm1, Form1);
20.   Application.Run;
21. end.
22.  

[Alex Bonanno]

I have the same problem simply rebuilding the IDE with standard packages.
I updated the IDE to version 2.0.2, FPC 3.0.4a.
I have MacOS Mojave 10.14.5 installed
I need help!
Thank you

[trev]

You are going to have to give us more information.

1) Do you have Xcode installed? Version?
2) Have you installed the optional Xcode command line tools?
3) Have you installed the SDK headers?
4) What commands are you using to "simply rebuild" the IDE?
5) What are the error messages?

[Alex Bonanno]

Thanks for your quick reply
1) Do you have Xcode installed? YES Version? Version 10.2.1 (10E1001)
2) Have you installed the optional Xcode command line tools? YES
3) Have you installed the SDK headers? NO, is important?
4) What commands are you using to "simply rebuild" the IDE? Menu Package/Install/Unistall packages, then add a package and go save and rebuild IDE.
5) What are the error messages?
Compile Project, Target: progressbar: Exit code 1, Errors: 3
Error: linker: Undefined symbols for architecture i386:
Error: linker:   "start", referenced from:
  "start", referenced from:
     implicit entry/start for main executable
ld: symbol(s) not found for architecture i386
An error occurred while linking
progressbar.pp(280,0) Error: Error while linking
progressebar is a lazarus example

thanks

[trev]

3) Have you installed the SDK headers? NO, is important?

Yes - Since macOS Mojave you need to install the SDK headers as well. Open a Terminal and then type:

open /Library/Developer/CommandLineTools/Packages/macOS_SDK_headers_for_macOS_10.14.pkg

which will start the pkg installer. Follow the prompts.