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Re: [cdt-dev] External build tool: Cannot run program "bjam": Unknown reason

Hi Jesper

Thanks for the input.

I'm doubtful that's the case, for 2 reasons.

1. I'm on Linux and am not running a virus scanner
2. I never have this problem running from a terminal, only from Eclipse


On 28 March 2016 at 12:46, Jesper Eskilson <Jesper.Eskilson@xxxxxxx> wrote:

This sound suspiciously like a anti-virus scanner holding locks it really shouldn't.


I normally have background-scanning turned off for local drives used for compiling things on, mostly for performance reasons.




From: cdt-dev-bounces@xxxxxxxxxxx [mailto:cdt-dev-bounces@xxxxxxxxxxx] On Behalf Of Steve Lorimer
Sent: den 28 mars 2016 18:09
To: CDT General developers list.
Subject: [cdt-dev] External build tool: Cannot run program "bjam": Unknown reason


I use the boost build build system (


As such, I have configured C++ Build / Builder settings to use a custom command.


Typically everything works, however, occasionally when I try to build I get back an error "Cannot run program "bjam": Unknown reason"


11:02:18 **** Build of configuration Default for project main ****

bjam -q -j8 

Cannot run program "bjam": Unknown reason


11:02:18 Build Finished (took 285ms)


bjam is a tool on a local disk, is in my path, my source is on a local disk etc.


Running bjam from a terminal works fine.


If I wait for some time (several minutes), it seems to "find" bjam again, so it will suddenly start working again. 


However, if I don't want to wait for several minutes for eclipse to sort itself out again, I have to restart eclipse to get it to work again.


How can I diagnose what is causing eclipse to lose access to bjam, and how can I prevent this from happening?




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