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boardgameio / boardgame.io

State Management and Multiplayer Networking for Turn-Based Games
https://boardgame.io
MIT License
9.93k stars 707 forks source link

Cannot read property 'forEach' of undefined #365

Closed pociej closed 4 years ago

pociej commented 5 years ago 
(node:21128) UnhandledPromiseRejectionWarning: TypeError: Cannot read property 'forEach' of undefined
    at Object.sendAll (/home/dzik/Projects/games/change_management/koa_app/node_modules/boardgame.io/dist/server.js:2524:25)
    at Master.onUpdate (/home/dzik/Projects/games/change_management/koa_app/node_modules/boardgame.io/dist/server.js:2397:25)
    at <anonymous>
    at process._tickCallback (internal/process/next_tick.js:188:7)
(node:21128) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
(node:21128) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

Sometime i got this error and to be honest i have no chance to reproduce it, it seems to be completly random and as you can see its reported very poor. What could be reason ?

When i restar my koa server then everything back to normality i can perform move which previously thrown this error and continue, and then after some time i got this error one more time and so on. Really strange.

nicolodavis commented 4 years ago

Haven't seen this error myself, and given that there isn't a sure way to reproduce it, I'll close this for now. Feel free to re-open if you see this after upgrading to v0.33.