Error while trying to run project: Unable to start program ‘…’. The endpoint was not reachable.
Fixes a Visual Studio project startup error where the endpoint is not reachable by removing the Prefer32bit setting from the project file.
During playing with Entity Framework I got the error:
“Error while trying to run project: Unable to start program ‘’…’. The endpoint was not reachable.
By running the project in Visual Studio. Outside VS were no problems.
A similar project runs fine. So I compared both project files. Indeed the first project file contains the line:
<Prefer32bit>false</Prefer32bit>
in some property groups.
After deleting this line everything runs fine.