Xcode error: library not found for -lil2cpp (Linker command failed with exit code 1 (use -v to see invocation))

[chellongCoder]

after built uinity export IOS, I have received UnityExport folder in ios folder, but when I build ios, i get xcode error.
there is my UnityConfig.xcconfig

//  UnityConfig.xcconfig
//  rnunitydemo
//
//  Created by xzper on 2018/3/6.
//  Copyright © 2018年 Facebook. All rights reserved.
//
UNITY_SCRIPTING_BACKEND = il2cpp;
GCC_PREFIX_HEADER = $(SRCROOT)/UnityExport/Classes/Prefix.pch;

HEADER_SEARCH_PATHS = $(inherited) "$(SRCROOT)/UnityExport/Classes" "$(SRCROOT)/UnityExport/Classes/Unity" "$(SRCROOT)/UnityExport/Classes/Native" "$(SRCROOT)/UnityExport/Libraries" "$(SRCROOT)/UnityExport/Libraries/libil2cpp/include" ${PODS_HEADER_PATHS};

LIBRARY_SEARCH_PATHS = $(inherited) "$(SRCROOT)/UnityExport/Libraries" "$(SRCROOT)/UnityExport/Libraries/libil2cpp/include" ${PODS_LIBRARY_PATHS};

// If using .net 4.0 in Unity, append -DNET_4_0 to OTHER_CFLAGS
OTHER_CFLAGS = $(inherited) -DINIT_SCRIPTING_BACKEND=1 -fno-strict-overflow -DRUNTIME_IL2CPP=1;

OTHER_LDFLAGS = $(inherited) -weak-lSystem -weak_framework CoreMotion -weak_framework GameKit -weak_framework iAd -framework AVFoundation -framework AudioToolbox -framework CFNetwork -framework CoreGraphics -framework CoreLocation -framework CoreMedia -framework CoreVideo -framework Foundation -framework MediaPlayer -framework MediaToolbox -framework Metal -framework OpenAL -framework OpenGLES -framework QuartzCore -framework SystemConfiguration -framework UIKit -liconv.2 -liPhone-lib -lil2cpp ${PODS_LIBRARIES};

CLANG_CXX_LANGUAGE_STANDARD = c++0x;
CLANG_CXX_LIBRARY = libc++;
CLANG_ENABLE_MODULES = NO;
CLANG_WARN_BOOL_CONVERSION = NO;
CLANG_WARN_CONSTANT_CONVERSION = NO;
CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES;
CLANG_WARN_EMPTY_BODY = NO;
CLANG_WARN_ENUM_CONVERSION = NO;
CLANG_WARN_INT_CONVERSION = NO;
CLANG_WARN_OBJC_ROOT_CLASS = YES;
CLANG_WARN_UNREACHABLE_CODE = NO;
CLANG_WARN__DUPLICATE_METHOD_MATCH = NO;
GCC_C_LANGUAGE_STANDARD = c99;
GCC_ENABLE_OBJC_EXCEPTIONS = NO;
GCC_ENABLE_CPP_RTTI = NO;
GCC_PRECOMPILE_PREFIX_HEADER = YES;
GCC_THUMB_SUPPORT = NO;
GCC_USE_INDIRECT_FUNCTION_CALLS = NO;
GCC_WARN_64_TO_32_BIT_CONVERSION = NO;
GCC_WARN_64_TO_32_BIT_CONVERSION[arch=*64] = YES;
GCC_WARN_ABOUT_RETURN_TYPE = YES;
GCC_WARN_UNDECLARED_SELECTOR = NO;
GCC_WARN_UNINITIALIZED_AUTOS = NO;
GCC_WARN_UNUSED_FUNCTION = NO;

ENABLE_BITCODE = NO;

DEAD_CODE_STRIPPING = YES;

[bberak]

Sorry @chellongCoder, but I'm not a Unity developer - so I cannot help you with this issue. Please re-open this issue if I have misunderstood the problem.