Severity code shows the project file line prohibits display status
Error the compiled source files can be found in the following locations: "C: \ Users \ \ Administrator \ AppData \ Local \ Temp \ c8c839 21-9 e9c - 9 aa1-28884464-48 f1 e846. TXT" Demo3 C: \ Users \ \ Administrator \ AppData \ Local \ QtMsBuild \ qt_vars targets 239

Severity code shows the project file line prohibits display status
Error MSB3758 compile-time error, c: \ Users \ \ Administrator \ AppData \ Local \ Temp \ 4 RXJZGVQ. 0. Cs (103, 26) : error CS1061: "System. Collections. Generic. IEnumerable" Does not contain the definition of "ToHashSet", and couldn't find the acceptable type for "System. Collections. Generic. IEnumerable" The first parameter to the method of extension "ToHashSet" (whether or not the lack of a using directive or assembly reference?) Demo3 C: \ Users \ \ Administrator \ AppData \ Local \ QtMsBuild \ qt_vars targets 239

Severity code shows the project file line prohibits display status
From assembly error MSB4175 failed to "C: \ Program Files \ Microsoft Visual Studio (x86), 2017, the Community, the MSBuild \ 15.0 \ Bin \ Microsoft Build. The Tasks. The Core. The DLL" factory "CodeTaskFactory" loading Tasks, task factory must to "TaskType" property returns a value, Demo3 C: \ Users \ \ Administrator \ AppData \ Local \ QtMsBuild \ qt_vars targets 239

CodePudding user response:

Vc + + environment is not installed

CodePudding user response:

The building Lord solved?