Auto imports from referenced project not working until already imported once in project

TS Template added by @mjbvz

TypeScript Version: 4.0.0-dev.20200727

Search Terms

• angular
• project references
• auto imports

• VSCode Version: 1.47.2
• OS Version: Mac OS Catalina 10.15.5

Steps to Reproduce:

I have an Angular project, and just 1 of the files don't have a proper suggestion support in it.
Same happens when I create a file via plus sign from the side bar.
VSCode doesn't suggest "obvious(necessary)" things, quite the contrary happens:
it suggests everything else what's available, but not what I need and not what really exists in the project.

Also, when I try to import environment object with 'src/environments/environment',
it doesn't seem to know about src folder(project_name/src).
Although it already works this way for all the other files in the project.

Cache cleaning && insiders build didn't help out, no errors in debug console and I couldn't find any useful tsserver logs.
Although I can send if necessary.
Having 3.9.7 TS

Does this issue occur when all extensions are disabled?: Yes

首先在 VS Code 中复现报告的 Angular 项目引用设置，重点关注被引用的符号尚未在其他位置导入之前的自动导入建议。该 issue 未指出任何仓库文件或测试；完成标准是在新建文件中始终建议来自被引用项目的导入，包括 src/environments/environment。