I am on Ubuntu 16.04. I was looking at Getting Started with DUB:
http://code.dlang.org/getting_started

I did the "dub init myproject" and it worked fine. Then I added dependency:

' dependency "dub" version="~>1.3.0" '

as shown in the next step. This got an error:
-------------------------------------------------------------
dub build
Fetching dub 1.3.0 (getting selected version)...
Performing "debug" build using dmd for x86_64.
dub 1.3.0: building configuration "library"...
../../../.dub/packages/dub-1.3.0/dub/source/dub/internal/sdlang/token.d(26,2): Deprecation: struct core.time.FracSec is deprecated - FracSec has been deprecated in favor of just using Duration for the sake of simplicity
../../../.dub/packages/dub-1.3.0/dub/source/dub/internal/sdlang/token.d(26,2): Deprecation: struct core.time.FracSec is deprecated - FracSec has been deprecated in favor of just using Duration for the sake of simplicity
myproject ~master: building configuration "application"...
Linking...
/usr/bin/ld: cannot find -lcurl
collect2: error: ld returned 1 exit status
Error: linker exited with status 1
dmd failed with exit code 1.
-----------------------------------------------------------------

I am wondering if the tutorial should caution that "you need to have lib curl already on your system", or if I have a bad DUB install (lib curl should have been installed with DUB).

On 09/01/2018 5:42 AM, Tony wrote:
> I am on Ubuntu 16.04. I was looking at Getting Started with DUB:
> http://code.dlang.org/getting_started
> 
> I did the "dub init myproject" and it worked fine. Then I added dependency:
> 
> ' dependency "dub" version="~>1.3.0" '
> 
> as shown in the next step. This got an error:
> -------------------------------------------------------------
> dub build
> Fetching dub 1.3.0 (getting selected version)...
> Performing "debug" build using dmd for x86_64.
> dub 1.3.0: building configuration "library"...
> ../../../.dub/packages/dub-1.3.0/dub/source/dub/internal/sdlang/token.d(26,2): Deprecation: struct core.time.FracSec is deprecated - FracSec has been deprecated in favor of just using Duration for the sake of simplicity
> ../../../.dub/packages/dub-1.3.0/dub/source/dub/internal/sdlang/token.d(26,2): Deprecation: struct core.time.FracSec is deprecated - FracSec has been deprecated in favor of just using Duration for the sake of simplicity
> myproject ~master: building configuration "application"...
> Linking...
> /usr/bin/ld: cannot find -lcurl
> collect2: error: ld returned 1 exit status
> Error: linker exited with status 1
> dmd failed with exit code 1.
> -----------------------------------------------------------------
> 
> I am wondering if the tutorial should caution that "you need to have lib curl already on your system", or if I have a bad DUB install (lib curl should have been installed with DUB).

Few things, the example of using dub as a dependency is just an example. You don't need to add it.

The reason you're getting that error isn't a major problem. Basically the import libraries are not installed, curl is (I would expect), just not the files that allow linking it in.
They are usually in packages *-dev.