xcode6 - Swift beta 6 - Confusing linker error message -


i'm getting error message linker when building swift program xcode 6 beta 6, targeting ios 8. code compiled , ran correctly beta 5.

undefined symbol architecture x86_64: __tfss26_forcebridgefromobjectivecu__ftpss9anyobject_mq__q_", referenced from:  __tfc8raytrace14raytracingplot15drawfocalpointfs0_ft_t_ in raytracingplot.o ld: symbol(s) not found architecture x86_64

here's code in question:

private func drawfocalpoint() {     var attributes = dictionary<string, anyobject>()      let fstring: string = "f"     let distance: cgfloat = focaldistance      let centerx = cgrectgetmidx(bounds)     let centery = cgrectgetmidy(bounds)      let circleradius: cgfloat = 4.0     let focalpointframe = cgrectmake(0, 0, circleradius * 2.0, circleradius * 2.0)     var path = uibezierpath(ovalinrect: focalpointframe)     let color = uicolor.blackcolor()      let currentcontext = uigraphicsgetcurrentcontext()     cgcontextsavegstate(currentcontext)     let shadowcolor = uicolor(white:0, alpha:0.75).cgcolor     cgcontextsetshadowwithcolor(currentcontext, cgsizemake(0, 4), cgfloat(8), shadowcolor)      // image f     var imagefpath = uibezierpath(cgpath: path.cgpath)     let imageftransform = cgaffinetransformmaketranslation((centerx - distance - circleradius),         (centery - circleradius))     imagefpath.applytransform(imageftransform)     color.set()     imagefpath.fill()     fstring.drawatpoint(cgpointmake(centerx - distance - circleradius, centery + 5), withattributes:attributes)      cgcontextsetshadowwithcolor(currentcontext, cgsizemake(0.0, 0.0), cgfloat(0.0), nil) // clear shadow     cgcontextrestoregstate(currentcontext) }

i'd appreciate hint in code error can fix it. thank you.

i got error new version of beta6 release hours after bad 1 got pulled.

i've solved , other illegible errors deleting contents of derived folder. can find folder located going preferences > locations.

the default path is: /users/[your username]/library/developer/xcode/deriveddata

you can hold option while product menu open in xcode, change clean clean build folder... , accomplish same task without having folder-hunt.


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