Uncaught Error: Can't resolve all parameters for Service in angular 11

I'm trying to migrate Angular 4 -> Angular 11 and getting this error

`compiler.js:2512 Uncaught Error: Can't resolve all parameters for Service: ([object Object], ?, [object Object], [object Object]).

at syntaxError (compiler.js:2512)

at CompileMetadataResolver._getDependenciesMetadata (compiler.js:23520)

at CompileMetadataResolver._getTypeMetadata (compiler.js:23415)

at CompileMetadataResolver._getInjectableTypeMetadata (compiler.js:23633)

at CompileMetadataResolver.getProviderMetadata (compiler.js:23642)

at compiler.js:23580

at Array.forEach ()

at CompileMetadataResolver._getProvidersMetadata (compiler.js:23537)

at CompileMetadataResolver.getNgModuleMetadata (compiler.js:23267)

at JitCompiler._loadModules (compiler.js:29025)`

1 Reply

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Kiran Mohanty5y ago
I can see a option parameter in second position. Moving it to last may help you.(not sure)

Its parameter mismatch error for a service. If its for angular in build services, then check for API doc in angular.io and modify your code accordingly.