[bug]:

[TomasWell]

Version：pod 'CYLTabBarController/Lottie', '1.29.2'
Language of App ：OC
iOS System Version：iOS15.0.1
Prototype（是否是真机）：YES
Issue Type：Bug

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Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '+[UIColor cyl_systemGrayColor]: unrecognized selector sent to class 0x1f0da7f60'
*** First throw call stack:
(0x180f29cac 0x197f99758 0x180ff9618 0x180ec3edc 0x180ec314c 0x102f0edb4 0x102f0f184 0x102f1163c 0x18337ad70 0x1849e4c4c 0x1849d7d40 0x1849eb4a4 0x1849f408c 0x183537b8c 0x180f04cf8 0x180f05acc 0x180ea2a2c 0x180eb5d8c 0x19afc39a0 0x1836eb018 0x18347f29c 0x102e5ab94 0x103844190)
libc++abi: terminating with uncaught exception of type NSException
dyld4 config: DYLD_LIBRARY_PATH=/usr/lib/system/introspection DYLD_INSERT_LIBRARIES=/Developer/usr/lib/libBacktraceRecording.dylib:/Developer/usr/lib/libMainThreadChecker.dylib:/Developer/Library/PrivateFrameworks/DTDDISupport.framework/libViewDebuggerSupport.dylib
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '+[UIColor cyl_systemGrayColor]: unrecognized selector sent to class 0x1f0da7f60'
terminating with uncaught exception of type NSException

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Base Info for this issue

1. Version：Latest Version as here
2. Language of App ：Objective-C/Swift
3. iOS System Version：iOS12
4. Prototype（是否是真机）：YES
5. Issue Type：Crash、Bug、Enhancement（希望能支持一个新需求）、Q-A

1. How to reproduce the problem.

2. Please help me in this way.

3. Here is a Demo.

4. Here is my Debug log

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[TomasWell]

Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '+[UIColor cyl_systemGrayColor]: unrecognized selector sent to class 0x1f0da7f60'
*** First throw call stack:
(0x180f29cac 0x197f99758 0x180ff9618 0x180ec3edc 0x180ec314c 0x102f0edb4 0x102f0f184 0x102f1163c 0x18337ad70 0x1849e4c4c 0x1849d7d40 0x1849eb4a4 0x1849f408c 0x183537b8c 0x180f04cf8 0x180f05acc 0x180ea2a2c 0x180eb5d8c 0x19afc39a0 0x1836eb018 0x18347f29c 0x102e5ab94 0x103844190)
libc++abi: terminating with uncaught exception of type NSException
dyld4 config: DYLD_LIBRARY_PATH=/usr/lib/system/introspection DYLD_INSERT_LIBRARIES=/Developer/usr/lib/libBacktraceRecording.dylib:/Developer/usr/lib/libMainThreadChecker.dylib:/Developer/Library/PrivateFrameworks/DTDDISupport.framework/libViewDebuggerSupport.dylib
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '+[UIColor cyl_systemGrayColor]: unrecognized selector sent to class 0x1f0da7f60'
terminating with uncaught exception of type NSException

[TomasWell]

Version：pod 'CYLTabBarController/Lottie', '1.29.2'
Language of App ：OC
iOS System Version：iOS15.0.1
Prototype（是否是真机）：YES
Issue Type：Bug

[ChenYilong]

@TomasWell

A possibility:
If this is part of a static library, you need to add -all_load to the Other Linker Flags build setting for the app linking against the library.