我试图在手机上加载我创建的Flutter应用程序，但是当我尝试启动该应用程序时，它会显示白屏或直接崩溃。
我得到的错误是：
Error: Unable to Capture View Hierarchy.
Details: Log Title: Data source expression execution failure.
Log Details: error evaluating expression “(id)[[(Class)objc_getClass("DBGTargetHub") sharedHub] performRequestWithRequestInBase64:@"…"]”: error: <user expression 1>:1:14: use of undeclared identifier 'objc_getClass'
(id)[[(Class)objc_getClass("DBGTargetHub") sharedHub] performRequestWithRequestInBase64:@"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"]
^
Log Method: -[DBGDataSourceConnectionLibViewDebugger _executeLLDBExpression:forRequest:onPotentialThread:iteration:]_block_invoke
Method: -[DBGViewDebugger _initiateInitialRequestWithDataSourceVersion:]_block_invoke
Environment: Xcode 11.4.1 (11E503a) debugging iPhone 8 (Model A1863, A1905, A1906, A1907) iOS 13.3.1 (17D50).
Please file a bug at https://feedbackassistant.apple.com with this warning message and any useful information you can provide.
我不知道该如何解决？
谢谢您的回答！