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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(316.8, 11%, 40%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EDD%3C/text%3E%3C/svg%3E)
Hi community;
I need your help, please.
Istarted this exercice with a sandbox "https://learn.microsoft.com/fr-fr/learn/modules/control-access-to-azure-storage-with-sas/4-exercise-use-shared-access-signatures".
But I can't launch my application created using the command "dotnet run": I have an error meaning that I don't have a compatible version of SDK installed; although I have everything I need..
In attachment the message of error and the version of SK that I have.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(211.20000000000002, 61%, 30%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EBS%3C/text%3E%3C/svg%3E)
the error is pretty clear.
your app was built with 3.1.401, but only 6.0.300 is installed. install the old 3.1 sdk, or change you program to net 6
this app was includ in the sandbox of microsoft not my own. So how can I install the old 3.1 sdk on the sandbox/ microsoft learn environnement?? have you an idea??
then just change the project file to net6
