ErrorException: Trying to get property 'id' of non-object in file /var/www/html/app/Http/Controllers/LinksController.php on line 101 #0 /var/www/html/app/Http/Controllers/LinksController.php(101): Illuminate\Foundation\Bootstrap\HandleExceptions->handleError(8, 'Trying to get p...', '/var/www/html/a...', 101, Array) #1 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/Controller.php(54): App\Http\Controllers\LinksController->showLinksByUrl(Object(Illuminate\Http\Request)) #2 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php(45): Illuminate\Routing\Controller->callAction('showLinksByUrl', Array) #3 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/Route.php(254): Illuminate\Routing\ControllerDispatcher->dispatch(Object(Illuminate\Routing\Route), Object(App\Http\Controllers\LinksController), 'showLinksByUrl') #4 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/Route.php(197): Illuminate\Routing\Route->runController() #5 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/Router.php(695): Illuminate\Routing\Route->run() #6 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(128): Illuminate\Routing\Router->Illuminate\Routing\{closure}(Object(Illuminate\Http\Request)) #7 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/Middleware/SubstituteBindings.php(50): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) #8 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Routing\Middleware\SubstituteBindings->handle(Object(Illuminate\Http\Request), Object(Closure)) #9 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/Middleware/ThrottleRequests.php(127): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) #10 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/Middleware/ThrottleRequests.php(103): Illuminate\Routing\Middleware\ThrottleRequests->handleRequest(Object(Illuminate\Http\Request), Object(Closure), Array) #11 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/Middleware/ThrottleRequests.php(55): Illuminate\Routing\Middleware\ThrottleRequests->handleRequestUsingNamedLimiter(Object(Illuminate\Http\Request), Object(Closure), 'api', Object(Closure)) #12 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Routing\Middleware\ThrottleRequests->handle(Object(Illuminate\Http\Request), Object(Closure), 'api') #13 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(103): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) #14 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/Router.php(697): Illuminate\Pipeline\Pipeline->then(Object(Closure)) #15 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/Router.php(672): Illuminate\Routing\Router->runRouteWithinStack(Object(Illuminate\Routing\Route), Object(Illuminate\Http\Request)) #16 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/Router.php(636): Illuminate\Routing\Router->runRoute(Object(Illuminate\Http\Request), Object(Illuminate\Routing\Route)) #17 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/Router.php(625): Illuminate\Routing\Router->dispatchToRoute(Object(Illuminate\Http\Request)) #18 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(166): Illuminate\Routing\Router->dispatch(Object(Illuminate\Http\Request)) #19 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(128): Illuminate\Foundation\Http\Kernel->Illuminate\Foundation\Http\{closure}(Object(Illuminate\Http\Request)) #20 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) #21 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/ConvertEmptyStringsToNull.php(31): Illuminate\Foundation\Http\Middleware\TransformsRequest->handle(Object(Illuminate\Http\Request), Object(Closure)) #22 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Foundation\Http\Middleware\ConvertEmptyStringsToNull->handle(Object(Illuminate\Http\Request), Object(Closure)) #23 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) #24 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TrimStrings.php(40): Illuminate\Foundation\Http\Middleware\TransformsRequest->handle(Object(Illuminate\Http\Request), Object(Closure)) #25 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Foundation\Http\Middleware\TrimStrings->handle(Object(Illuminate\Http\Request), Object(Closure)) #26 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/ValidatePostSize.php(27): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) #27 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Foundation\Http\Middleware\ValidatePostSize->handle(Object(Illuminate\Http\Request), Object(Closure)) #28 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/PreventRequestsDuringMaintenance.php(86): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) #29 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Foundation\Http\Middleware\PreventRequestsDuringMaintenance->handle(Object(Illuminate\Http\Request), Object(Closure)) #30 /var/www/html/vendor/fruitcake/laravel-cors/src/HandleCors.php(52): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) #31 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Fruitcake\Cors\HandleCors->handle(Object(Illuminate\Http\Request), Object(Closure)) #32 /var/www/html/vendor/fideloper/proxy/src/TrustProxies.php(57): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) #33 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Fideloper\Proxy\TrustProxies->handle(Object(Illuminate\Http\Request), Object(Closure)) #34 /var/www/html/vendor/laravel/framework/src/Illuminate/Http/Middleware/TrustHosts.php(48): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) #35 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Http\Middleware\TrustHosts->handle(Object(Illuminate\Http\Request), Object(Closure)) #36 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(103): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) #37 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(141): Illuminate\Pipeline\Pipeline->then(Object(Closure)) #38 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(110): Illuminate\Foundation\Http\Kernel->sendRequestThroughRouter(Object(Illuminate\Http\Request)) #39 /var/www/html/public/index.php(52): Illuminate\Foundation\Http\Kernel->handle(Object(Illuminate\Http\Request)) #40 {main}
Glossary of chromatography terms http://hplc.chem.shu.edu/BOOK/glossary/define.html Page on mammals of the world – search by everyday or scientific name http://nmnhwww.si.edu/msw/ Glossary on space with links to other science glossaries http://www.redorbit.com/education/reference_library/glossary/ Biotechnology glossary http://biotechterms.org/ Chemical elements http://www.cdc.gov/niosh/ipcs/icstart.html Weather glossary with 800 terms http://www.weather.com/glossary/ Glossary on weather http://www.weather.com/glossary/ Chemistry: definitions of hundreds of terms related to chemistry http://scienceworld.wolfram.com/chemistry/letters/ Terminology of basic and applied chemistry - links to a large number of glossaries http://www.chem.qmw.ac.uk/iupac/index.html Database on chemistry, elements and compounds http://classifications.wipo.int/fulltext/nice/enmn01.htm Afforestation glossary (FAO) http://www.fao.org/docrep/v6530e/v6530e12.htm Afforestation glossary http://rredc.nrel.gov/biomass/forest/ Glossary on wood http://rredc.nrel.gov/biomass/forest/tim_glossary/ Glossary on wood http://www.wii.com/glossary.htm Glossary on wood http://www.westfraser.com/glossary.htm Glossary on woods of the world http://www.woodweb.com/~treetalk/Deglupta/wow_glossary.html Dictionary of biotechnology terms – also includes acronyms http://biotech.icmb.utexas.edu/ Chemistry glossary http://genchem.chem.wisc.edu/labdocs/glossary/glossary.htm Glossary on the science of color http://ziggy.derby.ac.uk/colour/info/glossary/ Guide on the metric system http://ts.nist.gov/ts/htdocs/200/202/metrsty3.htm Interactive measurement converter http://www.convert-me.com/en/ Glossary on household waste http://www.epa.gov/grtlakes/seahome/housewaste/src/glossary1.htm Glossaries on dinosaurs: names of species, pictures, etc. http://palaeo.gly.bris.ac.uk/dinobase/dinomenu.html Glossary on dinosaur anatomy http://www.dinosauria.com/dml/anatomy.htm Glossary on mathematical programming http://www.cudenver.edu/~hgreenbe/glossary/glossary.html Basic science glossary http://hermes.astro.washington.edu/mirrors/MendelWeb/MWgloss.html Glossary of the names of organic compounds http://www.chem.qmul.ac.uk/iupac/class/ Glossary of terms on physical organic chemistry http://www.chem.qmul.ac.uk/iupac/gtpoc/ Dictionary of odontological terms http://www.masel.com/glossary.html Portal with resources for biomolecular research http://www.public.iastate.edu/~pedro/research_tools.html Science and environment portal with links to hundreds of glossaries, dictionaries and thesauruses http://mel.lib.mi.us/science/scidict.html Glossary on volcanoes, hydrological dangers and technology http://vulcan.wr.usgs.gov/Glossary/framework.html Glossary on volcanoes http://vulcan.wr.usgs.gov/Glossary/volcanic_terms.html Glossary on terms related to water http://www.tec.org/tec/terms2.html The organization's glossary on water quality http://www.wqa.org/WQIS/Glossary/GlossHome.html