Module 'add_2_calender' not found

[libindstme]

i was running the project in Xcode. i am getting this Module not dound Error. Please help

[emadd]

Same...

Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 2.10.4, on macOS 12.3.1 21E258 darwin-arm, locale en-US)
[✓] Android toolchain - develop for Android devices (Android SDK version 32.1.0-rc1)
[✓] Xcode - develop for iOS and macOS (Xcode 13.3.1)
[✓] Chrome - develop for the web
[✓] Android Studio (version 2021.1)
[✓] VS Code (version 1.66.2)
[✓] Connected device (1 available)
[✓] HTTP Host Availability

Building com.seachangedigital.project for device (ios-release)...
Automatically signing iOS for device deployment using specified development team in Xcode project: KDHF47YJGY
Running Xcode build...                                                  
 └─Compiling, linking and signing...                      1,128ms
Xcode build done.                                            7.2s
Failed to build iOS app
Error output from Xcode build:
↳
    objc[40047]: Class AppleTypeCRetimerRestoreInfoHelper is implemented in both /usr/lib/libauthinstall.dylib
    (0x1e9115eb0) and /Library/Apple/System/Library/PrivateFrameworks/MobileDevice.framework/Versions/A/MobileDevice
    (0x107fd84f8). One of the two will be used. Which one is undefined.
    objc[40047]: Class AppleTypeCRetimerFirmwareAggregateRequestCreator is implemented in both
    /usr/lib/libauthinstall.dylib (0x1e9115f00) and
    /Library/Apple/System/Library/PrivateFrameworks/MobileDevice.framework/Versions/A/MobileDevice (0x107fd8548).
    One of the two will be used. Which one is undefined.
    objc[40047]: Class AppleTypeCRetimerFirmwareRequestCreator is implemented in both /usr/lib/libauthinstall.dylib
    (0x1e9115f50) and /Library/Apple/System/Library/PrivateFrameworks/MobileDevice.framework/Versions/A/MobileDevice
    (0x107fd8598). One of the two will be used. Which one is undefined.
    objc[40047]: Class ATCRTRestoreInfoFTABFile is implemented in both /usr/lib/libauthinstall.dylib (0x1e9115fa0)
    and /Library/Apple/System/Library/PrivateFrameworks/MobileDevice.framework/Versions/A/MobileDevice
    (0x107fd85e8). One of the two will be used. Which one is undefined.
    objc[40047]: Class AppleTypeCRetimerFirmwareCopier is implemented in both /usr/lib/libauthinstall.dylib
    (0x1e9115ff0) and /Library/Apple/System/Library/PrivateFrameworks/MobileDevice.framework/Versions/A/MobileDevice
    (0x107fd8638). One of the two will be used. Which one is undefined.
    objc[40047]: Class ATCRTRestoreInfoFTABSubfile is implemented in both /usr/lib/libauthinstall.dylib
    (0x1e9116040) and /Library/Apple/System/Library/PrivateFrameworks/MobileDevice.framework/Versions/A/MobileDevice
    (0x107fd8688). One of the two will be used. Which one is undefined.
    2022-04-14 14:39:30.106 xcodebuild[40047:1323864] Requested but did not find extension point with identifier
    Xcode.IDEKit.ExtensionSentinelHostApplications for extension Xcode.DebuggerFoundation.AppExtensionHosts.watchOS
    of plug-in com.apple.dt.IDEWatchSupportCore
    2022-04-14 14:39:30.107 xcodebuild[40047:1323864] Requested but did not find extension point with identifier
    Xcode.IDEKit.ExtensionPointIdentifierToBundleIdentifier for extension
    Xcode.DebuggerFoundation.AppExtensionToBundleIdentifierMap.watchOS of plug-in com.apple.dt.IDEWatchSupportCore
    ** BUILD FAILED **


Xcode's output:
↳
    Writing result bundle at path:
        /var/folders/c5/f4dw68bj5c90clqvd_ddb_cc0000gn/T/flutter_tools.mgOk3j/flutter_ios_build_temp_dir17dRt6/temporar
        y_xcresult_bundle

    /Users/user/Desktop/project/ios/Runner/GeneratedPluginRegistrant.m:12:9: fatal error: module
    'add_2_calendar' not found
    @import add_2_calendar;
     ~~~~~~~^~~~~~~~~~~~~~
    1 error generated.
    note: Using new build system
    note: Planning
    note: Build preparation complete
    note: Building targets in dependency order

    Result bundle written to path:
        /var/folders/c5/f4dw68bj5c90clqvd_ddb_cc0000gn/T/flutter_tools.mgOk3j/flutter_ios_build_temp_dir17dRt6/temporar
        y_xcresult_bundle


Parse Issue (Xcode): Module 'add_2_calendar' not found
/Users/user/Desktop/project/ios/Runner/GeneratedPluginRegistrant.m:11:8

[m93a]

I'm having the same problem. I've tried several versions of the package, but to no avail. Downgrading Flutter didn't work either.

EDIT: Looks like it wasn't a problem with add_2_calendar, after removing this particular package, other flutter packages showed the exact same error. I finally solved the issue by letting Xcode change some settings to their recomended values, see these links:
flutter/flutter#54599 (comment)
https://stackoverflow.com/q/61956166/1137334