Hi,

Looks like nice work with this.

I've followed your instructions, but I've run into an issue (seems like it was mentioned before- but I'm using the latest repo & having the issue). I've done theses steps.

1. git clone https://github.com/fangwei716/30-days-of-react-native.git 30DAYS
2. cd 30DAYS
3. npm install
4. cd ios
5. pod install (if I skip this step, I get the 'RCTBridge.h not found")

Open: the '.xcodeproj' file gives me this error:

ld: warning: directory not found for option '-L/Users/mac1/Dev/React/React30/ios/build/Debug-iphoneos' ld: library not found for -lJTSImageViewController

Opening the '.xcworkspace' file gives me this error:

Failed to build DependencyGraph: Naming collision detected: /Users/mac1/Dev/React/React30/node_modules/react/node_modules/fbjs/lib/warning.js collides with /Users/mac1/Dev/React/React30/node_modules/react-native/node_modules/fbjs/lib/warning.js Error: Naming collision detected: /Users/mac1/Dev/React/React30/node_modules/react/node_modules/fbjs/lib/warning.js collides with /Users/mac1/Dev/React/React30/node_modules/react-native/node_modules/fbjs/lib/warning.js at HasteMap._updateHasteMap (HasteMap.js:132:13) at HasteMap.js:103:28 at tryCallOne (/Users/mac1/Dev/React/React30/node_modules/react-native/node_modules/promise/lib/core.js:37:12) at /Users/mac1/Dev/React/React30/node_modules/react-native/node_modules/promise/lib/core.js:123:15 at flush (/Users/mac1/Dev/React/React30/node_modules/react-native/node_modules/promise/node_modules/asap/raw.js:50:29) at nextTickCallbackWith0Args (node.js:420:9) at process._tickCallback (node.js:349:13)

Running 'react run-ios' gives me this error:

      throw err;
      ^

Error: Command failed: /usr/libexec/PlistBuddy -c Print:CFBundleIdentifier build/Build/Products/Debug-iphonesimulator/ThirtyDaysOfReactNative.app/Info.plist
Print: Entry, ":CFBundleIdentifier", Does Not Exist

    at checkExecSyncError (child_process.js:464:13)
    at Object.execFileSync (child_process.js:484:13)
    at _runIOS (runIOS.js:77:34)
    at runIOS.js:24:5
    at tryCallTwo (/Users/mac1/Dev/React/React30/node_modules/react-native/node_modules/promise/lib/core.js:45:5)
    at doResolve (/Users/mac1/Dev/React/React30/node_modules/react-native/node_modules/promise/lib/core.js:200:13)
    at new Promise (/Users/mac1/Dev/React/React30/node_modules/react-native/node_modules/promise/lib/core.js:66:3)
    at Array.runIOS (runIOS.js:23:10)
    at Object.run (/Users/mac1/Dev/React/React30/node_modules/react-native/local-cli/cli.js:86:13)
    at Object.<anonymous> (/usr/local/lib/node_modules/react-native-cli/index.js:88:7)```

Hi, react-native ios-run has problem. help me please. i copy the error infomation as the below: /Users/daiweixiong/Documents/workplace/RN/30-days-of-react-native/node_modules/react-native/Libraries/WebSocket/RCTSRWebSocket.m:482:3: error: ignoring return value of function declared with warn_unused_result attribute [-Werror,-Wunused-result] SecRandomCopyBytes(kSecRandomDefault, keyBytes.length, keyBytes.mutableBytes); ^~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /Users/daiweixiong/Documents/workplace/RN/30-days-of-react-native/node_modules/react-native/Libraries/WebSocket/RCTSRWebSocket.m:1324:5: error: ignoring return value of function declared with warn_unused_result attribute [-Werror,-Wunused-result] SecRandomCopyBytes(kSecRandomDefault, sizeof(uint32_t), (uint8_t *)mask_key); ^~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 2 errors generated.

The following build commands failed: CompileC /Users/daiweixiong/Documents/workplace/RN/30-days-of-react-native/ios/build/Build/Intermediates/RCTWebSocket.build/Debug-iphonesimulator/RCTWebSocket.build/Objects-normal/x86_64/RCTSRWebSocket.o RCTSRWebSocket.m normal x86_64 objective-c com.apple.compilers.llvm.clang.1_0.compiler (1 failure) Installing build/Build/Products/Debug-iphonesimulator/ThirtyDaysOfReactNative.app An error was encountered processing the command (domain=NSPOSIXErrorDomain, code=2): Failed to install the requested application An application bundle was not found at the provided path. Provide a valid path to the desired application bundle. Print: Entry, ":CFBundleIdentifier", Does Not Exist /Users/daiweixiong/Documents/workplace/RN/30-days-of-react-native/node_modules/promise/lib/done.js:10 throw err; ^

Error: Command failed: /usr/libexec/PlistBuddy -c Print:CFBundleIdentifier build/Build/Products/Debug-iphonesimulator/ThirtyDaysOfReactNative.app/Info.plist Print: Entry, ":CFBundleIdentifier", Does Not Exist

this.animations = { duration: 200, create: { type: LayoutAnimation.Types.linear, }, update: { type: LayoutAnimation.Types.linear, springDamping: 0.7, }, }; day18.js在android上运行时能正确显示里面的图标，但是在拖动图标的时候出错，将linear改为别的也会出错。

30-days-of-react-native/node_modules/gl-react-native/ios/GLImage.m:83:68: Property 'request' not found on object of type 'RCTImageSource *'

Line #83: _loading = [_bridge.imageLoader loadImageWithURLRequest:source.request ErrorInfo: Property 'request' not found on object of type 'RCTImageSource *'

Hello Wei Fang, Thanks for this.

I am having issue running it:

ld: library not found for -lJTSImageViewController clang: error: linker command failed with exit code 1 (use -v to see invocation)

我运行的时候报这个错是什么情况？ [21:00:00] find dependencies Failed to build DependencyGraph: Naming collision detected: /Users/weiliang/Documents/work/react/react-native/30days/node_modules/react/lib/update.js collides with /Users/weiliang/Documents/work/react/react-native/30days/node_modules/react-native/node_modules/react/lib/update.js Error: Naming collision detected: /Users/weiliang/Documents/work/react/react-native/30days/node_modules/react/lib/update.js collides with /Users/weiliang/Documents/work/react/react-native/30days/node_modules/react-native/node_modules/react/lib/update.js at HasteMap._updateHasteMap (HasteMap.js:132:13) at HasteMap.js:103:28 at tryCallOne (/Users/weiliang/Documents/work/react/react-native/30days/node_modules/react-native/node_modules/promise/lib/core.js:37:12) at /Users/weiliang/Documents/work/react/react-native/30days/node_modules/react-native/node_modules/promise/lib/core.js:123:15 at flush (/Users/weiliang/Documents/work/react/react-native/30days/node_modules/react-native/node_modules/promise/node_modules/asap/raw.js:50:29) at doNTCallback0 (node.js:417:9) at process._tickCallback (node.js:346:13) ~ Process terminated. Press to close the window

On line 50 of day1.js, when we use the watchOn, find the it can not be change on line 47. Because function setState is a asynchronous function. Can look at https://facebook.github.io/react/docs/component-api.html

I try to achieve day1 on the android platform, when the cycle is set to 10 ms(setInterval) button can't response, modified to 1000 ms after can response, so I don't know how to complete the stopwatch function.

https://github.com/AlpacaBi/30-days-of-react-native-expo

Over the years, the dependent environment has changed so fast that the original project can no longer to run. So I use expo-cli to refactor the project, and use a lot of new features of React (Like hooks)

After react native version increased to 0-62.2, I encountered many problems. This is one of them in the following question:

-- I took this page for reference and edited it [https://react-native-community.github.io/upgrade-helper/?from=0.59.3&to=0.62.0](React native community) -- Podfile updated

-- react-native-cli: 2.0.1 react-native: 0.62.2

clang: error: linker command failed with exit code 1 (use -v to see invocation)

ld: library not found for -lRCTAnimation
warning: The iOS Simulator deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 6.0, but the range of supported deployment target versions is 8.0 to 13.4.99. (in target 'OpenSSL-Universal' from project 'Pods')

** BUILD FAILED **


The following build commands failed:
        Ld /Users/ibrahimyolbir/Library/Developer/Xcode/DerivedData/DGFonder-fxqthwkcalsxjgaeqbdxsodcnrou/Build/Products/Debug-iphonesimulator/DGFonder.app/DGFonder normal x86_64
(1 failure)

ld: library not found for -lRCTAnimation clang: error: linker command failed with exit code 1 (use -v to see invocation)

what should i do to start this project?