'ReactDevelopmentServer' does not exist #252

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fergalmoran · 2025-08-09T17:15:35Z

fergalmoran commented

2025-08-09 17:15:35 +00:00

Originally created by @rosieks on 12/22/2017

I have just reinstalled my computer and when I try to build my project that's based on CreateReactApp template I receive the following errors:

warning NU1603: Sample.Web depends on Microsoft.AspNetCore.SpaServices.Extensions (>= 2.0.1-preview1-10006) but Microsoft.AspNetCore.SpaServices.Extensions 2.0.1-preview1-10006 was not found. An approximate best match of Microsoft.AspNetCore.SpaServices.Extensions 2.1.0-preview1-27426 was resolved.
error CS0234: The type or namespace name 'ReactDevelopmentServer' does not exist in the namespace 'Microsoft.AspNetCore.SpaServices' (are you missing an assembly reference?)

*Originally created by @rosieks on 12/22/2017* I have just reinstalled my computer and when I try to build my project that's based on CreateReactApp template I receive the following errors: > warning NU1603: Sample.Web depends on Microsoft.AspNetCore.SpaServices.Extensions (>= 2.0.1-preview1-10006) but Microsoft.AspNetCore.SpaServices.Extensions 2.0.1-preview1-10006 was not found. An approximate best match of Microsoft.AspNetCore.SpaServices.Extensions 2.1.0-preview1-27426 was resolved. > error CS0234: The type or namespace name 'ReactDevelopmentServer' does not exist in the namespace 'Microsoft.AspNetCore.SpaServices' (are you missing an assembly reference?)

fergalmoran closed this issue

2025-08-09 17:15:35 +00:00

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Reference: github/JavaScriptServices#252