编译angular 11从angular 9升级应用程序时出错

问题描述

我有一个 angular 9 应用程序，现在已升级到 angular 11。现在在编译角度应用程序时，我遇到了以下错误。

Compiling @angular/material/core : es2015 as esm2015
Compiling @angular/cdk/scrolling : es2015 as esm2015
Compiling @angular/common/http : es2015 as esm2015
Error: Error on worker #2: TypeError: Cannot read property 'map' of null
    at ComponentDecoratorHandler.analyze (C:\Users\RJhaveri\Documents\Ronak\SourceCode\Development\SNSConversionAutomation\sns-conversion\node_modules\@angular\compiler-cli\src\ngtsc\annotations\src\component.js:210:79)
    at NgccTraitCompiler.TraitCompiler.analyzeTrait (C:\Users\RJhaveri\Documents\Ronak\SourceCode\Development\SNSConversionAutomation\sns-conversion\node_modules\@angular\compiler-cli\src\ngtsc\transform\src\compilation.js:346:40)
    at analyze (C:\Users\RJhaveri\Documents\Ronak\SourceCode\Development\SNSConversionAutomation\sns-conversion\node_modules\@angular\compiler-cli\src\ngtsc\transform\src\compilation.js:298:58)
    at _loop_1 (C:\Users\RJhaveri\Documents\Ronak\SourceCode\Development\SNSConversionAutomation\sns-conversion\node_modules\@angular\compiler-cli\src\ngtsc\transform\src\compilation.js:320:21)
    at NgccTraitCompiler.TraitCompiler.analyzeClass (C:\Users\RJhaveri\Documents\Ronak\SourceCode\Development\SNSConversionAutomation\sns-conversion\node_modules\@angular\compiler-cli\src\ngtsc\transform\src\compilation.js:326:35)
    at NgccTraitCompiler.analyzeFile (C:\Users\RJhaveri\Documents\Ronak\SourceCode\Development\SNSConversionAutomation\sns-conversion\node_modules\@angular\compiler-cli\ngcc\src\analysis\ngcc_trait_compiler.js:48:26)
    at DecorationAnalyzer.analyzeProgram (C:\Users\RJhaveri\Documents\Ronak\SourceCode\Development\SNSConversionAutomation\sns-conversion\node_modules\@angular\compiler-cli\ngcc\src\analysis\decoration_analyzer.js:140:39)
    at Transformer.analyzeProgram (C:\Users\RJhaveri\Documents\Ronak\SourceCode\Development\SNSConversionAutomation\sns-conversion\node_modules\@angular\compiler-cli\ngcc\src\packages\transformer.js:130:57)
    at Transformer.transform (C:\Users\RJhaveri\Documents\Ronak\SourceCode\Development\SNSConversionAutomation\sns-conversion\node_modules\@angular\compiler-cli\ngcc\src\packages\transformer.js:76:27)
    at C:\Users\RJhaveri\Documents\Ronak\SourceCode\Development\SNSConversionAutomation\sns-conversion\node_modules\@angular\compiler-cli\ngcc\src\execution\create_compile_function.js:49:42
    at ClusterMaster.onWorkerMessage (C:\Users\RJhaveri\Documents\Ronak\SourceCode\Development\SNSConversionAutomation\sns-conversion\node_modules\@angular\compiler-cli\ngcc\src\execution\cluster\master.js:195:27)
    at C:\Users\RJhaveri\Documents\Ronak\SourceCode\Development\SNSConversionAutomation\sns-conversion\node_modules\@angular\compiler-cli\ngcc\src\execution\cluster\master.js:55:95
    at ClusterMaster.<anonymous> (C:\Users\RJhaveri\Documents\Ronak\SourceCode\Development\SNSConversionAutomation\sns-conversion\node_modules\@angular\compiler-cli\ngcc\src\execution\cluster\master.js:293:57)
    at step (C:\Users\RJhaveri\Documents\Ronak\SourceCode\Development\SNSConversionAutomation\sns-conversion\node_modules\tslib\tslib.js:143:27)
    at Object.next (C:\Users\RJhaveri\Documents\Ronak\SourceCode\Development\SNSConversionAutomation\sns-conversion\node_modules\tslib\tslib.js:124:57)
    at C:\Users\RJhaveri\Documents\Ronak\SourceCode\Development\SNSConversionAutomation\sns-conversion\node_modules\tslib\tslib.js:117:75
    at new Promise (<anonymous>)
    at Object.__awaiter (C:\Users\RJhaveri\Documents\Ronak\SourceCode\Development\SNSConversionAutomation\sns-conversion\node_modules\tslib\tslib.js:113:16)
    at EventEmitter.<anonymous> (C:\Users\RJhaveri\Documents\Ronak\SourceCode\Development\SNSConversionAutomation\sns-conversion\node_modules\@angular\compiler-cli\ngcc\src\execution\cluster\master.js:287:32)
    at EventEmitter.emit (events.js:321:20)

请建议如何解决问题。

解决方法

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