Error: Debug Failure at typeToString

created at 07-04-2021 views: 17

description

The details of the error are as follows:

ERROR in : Error: Debug Failure.
    at typeToString (F:\work\angular\web-ide\node_modules\typescript\lib\typescript.js:28777:22)
    at reportRelationError (F:\work\angular\web-ide\node_modules\typescript\lib\typescript.js:34714:34)
    at isRelatedTo (F:\work\angular\web-ide\node_modules\typescript\lib\typescript.js:34860:21)
    at checkTypeRelatedTo (F:\work\angular\web-ide\node_modules\typescript\lib\typescript.js:34697:26)
    at checkApplicableSignature (F:\work\angular\web-ide\node_modules\typescript\lib\typescript.js:40608:26)
    at resolveCall (F:\work\angular\web-ide\node_modules\typescript\lib\typescript.js:41011:17)
    at resolveCallExpression (F:\work\angular\web-ide\node_modules\typescript\lib\typescript.js:41163:20)
    at resolveSignature (F:\work\angular\web-ide\node_modules\typescript\lib\typescript.js:41398:28)
    at getResolvedSignature (F:\work\angular\web-ide\node_modules\typescript\lib\typescript.js:41430:26)
    at checkCallExpression (F:\work\angular\web-ide\node_modules\typescript\lib\typescript.js:41479:29)
    at checkExpressionWorker (F:\work\angular\web-ide\node_modules\typescript\lib\typescript.js:42950:28)
    at checkExpression (F:\work\angular\web-ide\node_modules\typescript\lib\typescript.js:42898:42)
    at checkExpressionStatement (F:\work\angular\web-ide\node_modules\typescript\lib\typescript.js:44962:13)
    at checkSourceElement (F:\work\angular\web-ide\node_modules\typescript\lib\typescript.js:46746:28)
    at Object.forEach (F:\work\angular\web-ide\node_modules\typescript\lib\typescript.js:1506:30)
    at checkBlock (F:\work\angular\web-ide\node_modules\typescript\lib\typescript.js:44563:16)

The reason for this error in my code is that when the Map is defined, the value is an array type, but the array is not assigned a generic type, as follows:

public renderStateMap = new Map<string, []>();

solution:

Just add a type to the array:

public renderStateMap = new Map<string, any[]>();
created at:07-04-2021
edited at: 07-04-2021: