[Fixed] Metro Bundler has encountered an internal error...

Fixed

Uncaught TypeError: Cannot read property 'description' of undefined
    at logs.forEach.log (/Applications/Expo XDE.app/Contents/Resources/app/node_modules/xdl/build/logs/PackagerLogsStream.js:144:74)
    at Array.forEach (native)
    at _updateLogs.logs (/Applications/Expo XDE.app/Contents/Resources/app/node_modules/xdl/build/logs/PackagerLogsStream.js:141:16)
    at PackagerLogsStream.updateLogs [as _updateLogs] (file:///Applications/Expo%20XDE.app/Contents/Resources/app/build/renderer.js:278:28412)
    at PackagerLogsStream._handleUpdateBundleTransformProgress.progressChunk [as _handleUpdateBundleTransformProgress] (/Applications/Expo XDE.app/Contents/Resources/app/node_modules/xdl/build/logs/PackagerLogsStream.js:136:14)
    at PackagerLogsStream._handleBundleTransformEvent.chunk [as _handleBundleTransformEvent] (/Applications/Expo XDE.app/Contents/Resources/app/node_modules/xdl/build/logs/PackagerLogsStream.js:78:16)
    at PackagerLogsStream._handlePackagerEvent.chunk [as _handlePackagerEvent] (/Applications/Expo XDE.app/Contents/Resources/app/node_modules/xdl/build/logs/PackagerLogsStream.js:48:14)
    at Object.write (/Applications/Expo XDE.app/Contents/Resources/app/node_modules/xdl/build/logs/PackagerLogsStream.js:263:18)
    at Logger._emit (/Applications/Expo XDE.app/Contents/Resources/app/node_modules/@expo/bunyan/lib/bunyan.js:920:22)
    at Logger.info (/Applications/Expo XDE.app/Contents/Resources/app/node_modules/@expo/bunyan/lib/bunyan.js:1042:24)

logs.forEach.log	@	PackagerLogsStream.js:202
_updateLogs.logs	@	PackagerLogsStream.js:199
updateLogs	@	MainScreen.js:896
PackagerLogsStream._handleUpdateBundleTransformProgress.progressChunk	@	PackagerLogsStream.js:194
PackagerLogsStream._handleBundleTransformEvent.chunk	@	PackagerLogsStream.js:135
PackagerLogsStream._handlePackagerEvent.chunk	@	PackagerLogsStream.js:102
write	@	PackagerLogsStream.js:83
Logger._emit	@	/Applications/Expo XDE.app/Contents/Resources/app/node_modules/@expo/bunyan/lib/bunyan.js:920
(anonymous)	@	/Applications/Expo XDE.app/Contents/Resources/app/node_modules/@expo/bunyan/lib/bunyan.js:1042
logInfo	@	ProjectUtils.js:80
_logPackagerOutput	@	Project.js:1091
(anonymous)	@	Project.js:1267
emitOne	@	events.js:96
emit	@	events.js:188
drain	@	/Applications/Expo XDE.app/Contents/Resources/app/node_modules/through/index.js:36
stream.queue.stream.push	@	/Applications/Expo XDE.app/Contents/Resources/app/node_modules/through/index.js:45
emit	@	/Applications/Expo XDE.app/Contents/Resources/app/node_modules/split/index.js:37
next	@	/Applications/Expo XDE.app/Contents/Resources/app/node_modules/split/index.js:49
(anonymous)	@	/Applications/Expo XDE.app/Contents/Resources/app/node_modules/split/index.js:54
stream.write	@	/Applications/Expo XDE.app/Contents/Resources/app/node_modules/through/index.js:26
ondata	@	_stream_readable.js:555
emitOne	@	events.js:96[spoiler]This text will be blurred[/spoiler]
emit	@	events.js:188
readableAddChunk	@	_stream_readable.js:176
Readable.push	@	_stream_readable.js:134
onread	@	net.js:551

Glad you got this resolved!

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