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Dynamics 365 Community / Forums / Microsoft Dynamics NAV (Archived) / NAV 2013 .NET variable...
Microsoft Dynamics NAV (Archived)

NAV 2013 .NET variable CAS policy error

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Posted on by Txema Mas 75

Hello,

I'm using the Microsoft POS library but I get this error when I call the constructor of a variable (PosExplorer):

"This method explicitly uses CAS policy, which has been obsoleted by the .NET Framework"

How can I solve this in NAV, I have been searching but I haven't find any solution which fits on NAV 2013.

Thank you!

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  • Verified answer
    Roberto Stefanetti Profile Picture
    Roberto Stefanetti 12,998 on at

    hi,

    to bypass (if possible), try to fix .NET configuration checks adding "NetFx40_LegacySecurityPolicy " parameter (with visual studio works fine)

    On Nav server config file or on client config file (for server ord client addins) try to add this line:

    Microsoft.Dynamics.NAV.Server.exe.config file:

    <NetFx40_LegacySecurityPolicy enabled="true"/>

    if doesn't works try to add parameter only to runtime execution

    <runtime>

    <NetFx40_LegacySecurityPolicy enabled="true"/>

    </runtime>

    ....

    For example in past (Nav 2000) i added "Garbage collection" configuration on NAV passing standard .net "gcServer configuration" parameter (this is an undocumented feature but works fine if added and speed up nav servers)

    Microsoft.Dynamics.NAV.Server.exe.config file:

    <configuration>

    <runtime>

    <gcServer enabled="true"/>

    </runtime>

    </configuration>

    let me know if works.

  • Suggested answer
    Txema Mas Profile Picture
    Txema Mas 75 on at

    Thanks! I tested it and it works!

    I noticed that in both  config files (client and server) of NAV 2013 R2 it comes activated by default . In previous versions that code line doesn't exists.

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