Why do i get this error when running my app?
W20160714-21:46:46.016(8)? (STDERR) W20160714-21:46:46.323(8)? (STDERR) C:\Users\Jan\AppData\Local\.meteor\packages\meteor-tool\1.3.4_4\mt-os.windows.x86_32\dev_bundle\server-lib\node_modules\fibers\future.js:280 W20160714-21:46:46.324(8)? (STDERR) throw(ex); W20160714-21:46:46.324(8)? (STDERR) ^ W20160714-21:46:46.325(8)? (STDERR) Error: A method named 'createOperator' is already defined W20160714-21:46:46.325(8)? (STDERR) at packages/ddp-server/livedata_server.js:1548:15 W20160714-21:46:46.326(8)? (STDERR) at Function._.each._.forEach (packages/underscore/underscore.js:113:1) W20160714-21:46:46.326(8)? (STDERR) at Server.methods (packages/ddp-server/livedata_server.js:1544:7) W20160714-21:46:46.327(8)? (STDERR) at meteorInstall.server.methods.operators.js (server/methods/operators.js:2:8) W20160714-21:46:46.328(8)? (STDERR) at fileEvaluate (packages/modules-runtime/.npm/package/node_modules/install/install.js:153:1) W20160714-21:46:46.329(8)? (STDERR) at require (packages/modules-runtime/.npm/package/node_modules/install/install.js:82:1) W20160714-21:46:46.330(8)? (STDERR) at D:\Projects\m-taxi\.meteor\local\build\programs\server\app\app.js:608:1 W20160714-21:46:46.331(8)? (STDERR) at D:\Projects\m-taxi\.meteor\local\build\programs\server\boot.js:297:10 W20160714-21:46:46.331(8)? (STDERR) at Array.forEach (native) W20160714-21:46:46.332(8)? (STDERR) at Function._.each._.forEach (C:\Users\Jan\AppData\Local\.meteor\packages\meteor-tool\1.3.4_4\mt-os.windows.x86_32\dev_bundle\server-lib\node_modules\underscore\underscore.js:79:11) => Exited with code: 8 W20160714-21:46:51.630(8)? (STDERR) W20160714-21:46:51.631(8)? (STDERR) C:\Users\Jan\AppData\Local\.meteor\packages\meteor-tool\1.3.4_4\mt-os.windows.x86_32\dev_bundle\server-lib\node_modules\fibers\future.js:280 W20160714-21:46:51.632(8)? (STDERR) throw(ex); W20160714-21:46:51.633(8)? (STDERR) ^ W20160714-21:46:51.633(8)? (STDERR) Error: A method named 'createOperator' is already defined W20160714-21:46:51.634(8)? (STDERR) at packages/ddp-server/livedata_server.js:1548:15 W20160714-21:46:51.635(8)? (STDERR) at Function._.each._.forEach (packages/underscore/underscore.js:113:1) W20160714-21:46:51.636(8)? (STDERR) at Server.methods (packages/ddp-server/livedata_server.js:1544:7) W20160714-21:46:51.636(8)? (STDERR) at meteorInstall.server.methods.operators.js (server/methods/operators.js:2:8) W20160714-21:46:51.637(8)? (STDERR) at fileEvaluate (packages/modules-runtime/.npm/package/node_modules/install/install.js:153:1) W20160714-21:46:51.639(8)? (STDERR) at require (packages/modules-runtime/.npm/package/node_modules/install/install.js:82:1) W20160714-21:46:51.639(8)? (STDERR) at D:\Projects\m-taxi\.meteor\local\build\programs\server\app\app.js:608:1 W20160714-21:46:51.640(8)? (STDERR) at D:\Projects\m-taxi\.meteor\local\build\programs\server\boot.js:297:10 W20160714-21:46:51.641(8)? (STDERR) at Array.forEach (native) W20160714-21:46:51.642(8)? (STDERR) at Function._.each._.forEach (C:\Users\Jan\AppData\Local\.meteor\packages\meteor-tool\1.3.4_4\mt-os.windows.x86_32\dev_bundle\server-lib\node_modules\underscore\underscore.js:79:11) => Exited with code: 8 W20160714-21:46:56.556(8)? (STDERR) W20160714-21:46:56.557(8)? (STDERR) C:\Users\Jan\AppData\Local\.meteor\packages\meteor-tool\1.3.4_4\mt-os.windows.x86_32\dev_bundle\server-lib\node_modules\fibers\future.js:280 W20160714-21:46:56.558(8)? (STDERR) throw(ex); W20160714-21:46:56.559(8)? (STDERR) ^ W20160714-21:46:56.559(8)? (STDERR) Error: A method named 'createOperator' is already defined W20160714-21:46:56.560(8)? (STDERR) at packages/ddp-server/livedata_server.js:1548:15 W20160714-21:46:56.561(8)? (STDERR) at Function._.each._.forEach (packages/underscore/underscore.js:113:1) W20160714-21:46:56.562(8)? (STDERR) at Server.methods (packages/ddp-server/livedata_server.js:1544:7) W20160714-21:46:56.563(8)? (STDERR) at meteorInstall.server.methods.operators.js (server/methods/operators.js:2:8) W20160714-21:46:56.564(8)? (STDERR) at fileEvaluate (packages/modules-runtime/.npm/package/node_modules/install/install.js:153:1) W20160714-21:46:56.565(8)? (STDERR) at require (packages/modules-runtime/.npm/package/node_modules/install/install.js:82:1) W20160714-21:46:56.566(8)? (STDERR) at D:\Projects\m-taxi\.meteor\local\build\programs\server\app\app.js:608:1 W20160714-21:46:56.567(8)? (STDERR) at D:\Projects\m-taxi\.meteor\local\build\programs\server\boot.js:297:10 W20160714-21:46:56.568(8)? (STDERR) at Array.forEach (native) W20160714-21:46:56.569(8)? (STDERR) at Function._.each._.forEach (C:\Users\Jan\AppData\Local\.meteor\packages\meteor-tool\1.3.4_4\mt-os.windows.x86_32\dev_bundle\server-lib\node_modules\underscore\underscore.js:79:11)
