[Crash] Can't start my app after upgrading to v0.6.0-rc

[grin]

Tested in iOS simulator, here is the console output:

2015-06-12 13:59:56.066 [error][tid:com.facebook.React.JavaScript] "Error: undefined is not an object (evaluating 'RCTScrollViewConsts.KeyboardDismissMode.None')
 stack: 
  <unknown>       index.ios.bundle:24120
  require         index.ios.bundle:244
  <unknown>       index.ios.bundle:23173
  require         index.ios.bundle:244
  <unknown>       index.ios.bundle:1144
  require         index.ios.bundle:244
  <unknown>       index.ios.bundle:1112
  require         index.ios.bundle:244
  applyWithGuard  index.ios.bundle:880
  require         index.ios.bundle:195
  <unknown>       index.ios.bundle:47474
 URL: http://localhost:8081/index.ios.bundle
 line: 24120
 message: undefined is not an object (evaluating 'RCTScrollViewConsts.KeyboardDismissMode.None')"
2015-06-12 13:59:56.087 [error][tid:com.facebook.React.BridgeMethodQueue][RCTBridge.m:432]
 RCTDataManager.queryData was called with 4 arguments, but expects 3

[chirag04]

I'm getting the exact same error after update. @brentvatne: seems to be related to #1578

[sahrens]

FYI: It's helpful if you include the stack trace with sourcemaps (a screenshot of the redbox should be sufficient).

But I think this is just from a breaking API change - replace usage of RCTScrollViewConsts.KeyboardDismissMode.None in your code with just the string 'none'

[sahrens]

please re-open if there is something else going on.

[chirag04]

@sahrens I'm not using keyboardDismissMode in my app at all. I'm using using <ScrollView>....</ScrollView>

After some debugging, this error seems to be coming from react-native code itself. Here:
https://github.com/facebook/react-native/blob/master/Libraries/Components/ScrollView/ScrollView.js#L323

It expects RCTScrollView.Constants to export KeyboardDismissMode. However only DecelerationRate is exported. Hence the error.

re-open ?

[sahrens]

That code is only in the "if (Platform.OS === 'android')" branch which
isn't used in OSS yet...
On Sat, Jun 13, 2015 at 10:13 AM Chirag notifications@github.com wrote:

@sahrens https://github.com/sahrens I'm not using keyboardDismissMode
in my app at all. I'm using using ....

After some debugging, this error seems to be coming from react-native code
itself. Here:

https://github.com/facebook/react-native/blob/master/Libraries/Components/ScrollView/ScrollView.js#L323

It expects RCTScrollView.Constants to export KeyboardDismissMode. However
only DecelerationRate is exported. Hence the error.

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#1606 (comment)
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[chirag04]

Ok. I took the latest master. I have attached the screenshots.

Error seems to come from line 24289 in the bundle. I have attached the screenshot of those lines in the bundle. Not where how are these constants coming here.

Let me know if you need more info.

[sahrens]

Hmm, do the source maps ever work for you? Looks like they didn't load
here. cc @frantic, @amasad

I'll dig into the actual failure...not sure how it could be so broken...
On Sat, Jun 13, 2015 at 11:56 AM Chirag notifications@github.com wrote:

Ok. I took the latest master. I have attached the screenshots.

Error seems to come from line 24289 in the bundle. I have attached the
screenshot of those lines in the bundle. Not where how are these constants
coming here.

Let me know if you need more info.

[image: ios simulator screen shot jun 13 2015 2 52 30 pm]
https://cloud.githubusercontent.com/assets/954063/8145604/f9d4a3dc-11db-11e5-98ce-c9b50f0655c4.png
[image: screen shot 2015-06-13 at 2 52 48 pm]
https://cloud.githubusercontent.com/assets/954063/8145605/fc6bb996-11db-11e5-9d2f-eb301c0476f2.png

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#1606 (comment)
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[chirag04]

As a matter of fact, the project was generated before react-native 0.4 i guess. Not sure if that has got anything to do here.

[amasad]

Do you have sourcemaps turned off in chrome?

[chirag04]

yes. I have it turned off in chrome.

[sahrens]

I just tried react-native init, then upgraded to 0.6.0-rc and npm installed again, recompiled, and everything still works with scrollview and I don't see any references to KeyboardDismissMode outside of that android-gated code.

You should turn them back on in chrome so we can see what your stack trace is. Also, not sure why they aren't working in the RedBox - separate issue, but your setup definitely has some breakage.

Did you make sure to do a clean and recompile in Xcode (cmd+shift+K, cmd+R) after upgrading? Also maybe try restarting the packager server with --reset-cache?

[Sing-Li]

Here are some observations:

1. if you use any recent versions of react-native init to scaffold, you will not have this problem
2. if you just go into the Examples/SampleApp and start hacking the code there to create your app -- you eventually will have this problem
3. you will ONLY have this problem if you git clone'd the repo and are working off source

Clues:

1. if you used recent versions of react-native init to scaffold - you WILL HAVE package.json in the app directory, and 'npm install' will place all the node_modules dependencies under the app directory; if you use npm start to run the packager -- the packager will only search from your app directory downwards ... it will never see the root react-native git-cloned source directory
2. if you just hacked the Examples/SampleApp - even in today's master - there is no package.json, and no node_modules in the app directory ... instead, the compiled code running in the emulator is somehow wired to ask the packager for a search from the root git-cloned react-native source directory for the .js files

[chirag04]

I think --reset-cache did it.