title: CocoaPods could not find compatible versions for pod "Firebase/Core” | cloud_firestore, Flutter
body: <p>I am having some issues in the pod, see below</p>
  
  <p>Launching lib/main.dart on iPhone X in debug mode...
  Running pod install...
  CocoaPods' output:
  ↳
        Preparing</p>
  
  <pre><code>Analyzing dependencies
  
  Inspecting targets to integrate
    Using `ARCHS` setting to build architectures of target `Pods-Runner`: (``)
  
  Fetching external sources
  -&gt; Fetching podspec for `Flutter` from `.symlinks/flutter/ios`
  -&gt; Fetching podspec for `cloud_firestore` from `.symlinks/plugins/cloud_firestore/ios`
  -&gt; Fetching podspec for `firebase_core` from `.symlinks/plugins/firebase_core/ios`
  -&gt; Fetching podspec for `shared_preferences` from `.symlinks/plugins/shared_preferences/ios`
  -&gt; Fetching podspec for `url_launcher` from `.symlinks/plugins/url_launcher/ios`
  
  Resolving dependencies of `Podfile`
  [!] CocoaPods could not find compatible versions for pod "Firebase/Core":
    In Podfile:
      cloud_firestore (from `.symlinks/plugins/cloud_firestore/ios`) was resolved to 0.0.1, which depends on
        Firebase/Core
  
  Specs satisfying the `Firebase/Core` dependency were found, but they required a higher minimum deployment target.
  CocoaPods could not find compatible versions for pod "GoogleUtilities/MethodSwizzler":
    In Podfile:
      cloud_firestore (from `.symlinks/plugins/cloud_firestore/ios`) was resolved to 0.0.1, which depends on
        Firebase/Core was resolved to 5.8.0, which depends on
          FirebaseAnalytics (= 5.1.2) was resolved to 5.1.2, which depends on
            GoogleUtilities/MethodSwizzler (~&gt; 5.2.0)
  
  Specs satisfying the `GoogleUtilities/MethodSwizzler (~&gt; 5.2.0)` dependency were found, but they required a higher minimum deployment target.
  CocoaPods could not find compatible versions for pod "gRPC-Core":
    In Podfile:
      cloud_firestore (from `.symlinks/plugins/cloud_firestore/ios`) was resolved to 0.0.1, which depends on
        Firebase/Firestore was resolved to 5.8.0, which depends on
          FirebaseFirestore (= 0.13.3) was resolved to 0.13.3, which depends on
            gRPC-C++ (~&gt; 0.0.3) was resolved to 0.0.3, which depends on
              gRPC-C++/Implementation (= 0.0.3) was resolved to 0.0.3, which depends on
                gRPC-Core (= 1.14.0)
  
      cloud_firestore (from `.symlinks/plugins/cloud_firestore/ios`) was resolved to 0.0.1, which depends on
        Firebase/Firestore was resolved to 5.8.0, which depends on
          FirebaseFirestore (= 0.13.3) was resolved to 0.13.3, which depends on
            gRPC-ProtoRPC (~&gt; 1.0) was resolved to 1.14.1, which depends on
              gRPC-ProtoRPC/Main (= 1.14.1) was resolved to 1.14.1, which depends on
                gRPC (= 1.14.1) was resolved to 1.14.1, which depends on
                  gRPC/Main (= 1.14.1) was resolved to 1.14.1, which depends on
                    gRPC-Core (= 1.14.1)
  
  /Library/Ruby/Gems/2.3.0/gems/molinillo-0.6.5/lib/molinillo/resolution.rb:328:in `raise_error_unless_state'
  /Library/Ruby/Gems/2.3.0/gems/molinillo-0.6.5/lib/molinillo/resolution.rb:310:in `block in unwind_for_conflict'
  /Library/Ruby/Gems/2.3.0/gems/molinillo-0.6.5/lib/molinillo/resolution.rb:308:in `tap'
  /Library/Ruby/Gems/2.3.0/gems/molinillo-0.6.5/lib/molinillo/resolution.rb:308:in `unwind_for_conflict'
  /Library/Ruby/Gems/2.3.0/gems/molinillo-0.6.5/lib/molinillo/resolution.rb:684:in `attempt_to_activate'
  /Library/Ruby/Gems/2.3.0/gems/molinillo-0.6.5/lib/molinillo/resolution.rb:254:in `process_topmost_state'
  /Library/Ruby/Gems/2.3.0/gems/molinillo-0.6.5/lib/molinillo/resolution.rb:182:in `resolve'
  /Library/Ruby/Gems/2.3.0/gems/molinillo-0.6.5/lib/molinillo/resolver.rb:43:in `resolve'
  /Library/Ruby/Gems/2.3.0/gems/cocoapods-1.5.3/lib/cocoapods/resolver.rb:123:in `resolve'
  /Library/Ruby/Gems/2.3.0/gems/cocoapods-1.5.3/lib/cocoapods/installer/analyzer.rb:781:in `block in resolve_dependencies'
  /Library/Ruby/Gems/2.3.0/gems/cocoapods-1.5.3/lib/cocoapods/user_interface.rb:64:in `section'
  /Library/Ruby/Gems/2.3.0/gems/cocoapods-1.5.3/lib/cocoapods/installer/analyzer.rb:779:in `resolve_dependencies'
  /Library/Ruby/Gems/2.3.0/gems/cocoapods-1.5.3/lib/cocoapods/installer/analyzer.rb:88:in `analyze'
  /Library/Ruby/Gems/2.3.0/gems/cocoapods-1.5.3/lib/cocoapods/installer.rb:243:in `analyze'
  /Library/Ruby/Gems/2.3.0/gems/cocoapods-1.5.3/lib/cocoapods/installer.rb:154:in `block in resolve_dependencies'
  /Library/Ruby/Gems/2.3.0/gems/cocoapods-1.5.3/lib/cocoapods/user_interface.rb:64:in `section'
  /Library/Ruby/Gems/2.3.0/gems/cocoapods-1.5.3/lib/cocoapods/installer.rb:153:in `resolve_dependencies'
  /Library/Ruby/Gems/2.3.0/gems/cocoapods-1.5.3/lib/cocoapods/installer.rb:116:in `install!'
  /Library/Ruby/Gems/2.3.0/gems/cocoapods-1.5.3/lib/cocoapods/command/install.rb:41:in `run'
  /Library/Ruby/Gems/2.3.0/gems/claide-1.0.2/lib/claide/command.rb:334:in `run'
  /Library/Ruby/Gems/2.3.0/gems/cocoapods-1.5.3/lib/cocoapods/command.rb:52:in `run'
  /Library/Ruby/Gems/2.3.0/gems/cocoapods-1.5.3/bin/pod:55:in `&lt;top (required)&gt;'
  /usr/local/bin/pod:22:in `load'
  /usr/local/bin/pod:22:in `&lt;main&gt;'
  </code></pre>
  
  <p>Error output from CocoaPods:
  ↳
          [33mWARNING: CocoaPods requires your terminal to be using UTF-8 encoding.
          Consider adding the following to ~/.profile:</p>
  
  <pre><code>    export LANG=en_US.UTF-8
      [0m
  
  [!] Automatically assigning platform `ios` with version `8.0` on target `Runner` because no platform was specified. Please specify a platform for this target in your Podfile. See `https://guides.cocoapods.org/syntax/podfile.html#platform`.
  </code></pre>
  
  <p>Error running pod install
  Error launching application on iPhone X.</p>