After I installing 1.5.0, errors occurred but I don't know why.
RangeError: Maximum call stack size exceeded at getOwnPropertyNames (native) at iterateOverPropertyNames
(/Users/*/Workspace/sealionx/feime/node_modules/.npminstall/sugar/1.5.0/sugar/sugar-full.js:6893:7) at iterateOverProperties
(/Users/*/Workspace/sealionx/feime/node_modules/.npminstall/sugar/1.5.0/sugar/sugar-full.js:6886:9) at mergeObject
(/Users/*/Workspace/sealionx/feime/node_modules/.npminstall/sugar/1.5.0/sugar/sugar-full.js:6909:9) at
/Users/*/Workspace/sealionx/feime/node_modules/.npminstall/sugar/1.5.0/sugar/sugar-full.js:6932:15 at Array.forEach (native) at iterateOverPropertyNames
(/Users/*/Workspace/sealionx/feime/node_modules/.npminstall/sugar/1.5.0/sugar/sugar-full.js:6893:32) at iterateOverProperties
(/Users/*/Workspace/sealionx/feime/node_modules/.npminstall/sugar/1.5.0/sugar/sugar-full.js:6886:9) at mergeObject
(/Users/*/Workspace/sealionx/feime/node_modules/.npminstall/sugar/1.5.0/sugar/sugar-full.js:6909:9) at
/Users/*/Workspace/sealionx/feime/node_modules/.npminstall/sugar/1.5.0/sugar/sugar-full.js:6932:15 at Array.forEach (native) at iterateOverPropertyNames
(/Users/*/Workspace/sealionx/feime/node_modules/.npminstall/sugar/1.5.0/sugar/sugar-full.js:6893:32) at iterateOverProperties
(/Users/*/Workspace/sealionx/feime/node_modules/.npminstall/sugar/1.5.0/sugar/sugar-full.js:6886:9) at mergeObject
(/Users/*/Workspace/sealionx/feime/node_modules/.npminstall/sugar/1.5.0/sugar/sugar-full.js:6909:9) at
/Users/*/Workspace/sealionx/feime/node_modules/.npminstall/sugar/1.5.0/sugar/sugar-full.js:6932:15 at Array.forEach (native)
Old version is 1.4.1 and everything is OK.
After I installing 1.5.0, errors occurred but I don't know why.