i have no idea how to fix this error and really need help ITS A BIG ERROR

Unity Engine
1

okay well i could use any help right now and im really want it to be easy to fix

[ Internal compiler error. See the console log for more information. output was:
Unhandled Exception: Mono.CSharp.InternalErrorException: Assets/Photon Unity Networking/Plugins/PhotonNetwork/SocketUdp.cs(28,16): ExitGames.Client.Photon.SocketUdp.SocketUdp(ExitGames.Client.Photon.PeerBase) —> System.TypeLoadException: Could not load type ‘System.Runtime.Versioning.TargetFrameworkAttribute’ from assembly ‘Photon3Unity3D’.

at (wrapper managed-to-native) System.MonoCustomAttrs:GetCustomAttributesInternal (System.Reflection.ICustomAttributeProvider,System.Type,bool)

at System.MonoCustomAttrs.GetCustomAttributesBase (ICustomAttributeProvider obj, System.Type attributeType) [0x00000] in :0

at System.MonoCustomAttrs.GetCustomAttributes (ICustomAttributeProvider obj, System.Type attributeType, Boolean inherit) [0x00000] in :0

at System.Reflection.Assembly.GetCustomAttributes (System.Type attributeType, Boolean inherit) [0x00000] in :0

at Mono.CSharp.TypeManager.IsThisOrFriendAssembly (System.Reflection.Assembly assembly) [0x00000] in :0

at Mono.CSharp.Expression.IsAccessorAccessible (System.Type invocation_type, System.Reflection.MethodInfo mi, System.Boolean& must_do_cs1540_check) [0x00000] in :0

at Mono.CSharp.PropertyExpr.DoResolve (Mono.CSharp.ResolveContext ec) [0x00000] in :0

at Mono.CSharp.MemberAccess.DoResolve (Mono.CSharp.ResolveContext ec, Mono.CSharp.Expression right_side) [0x00000] in :0

at Mono.CSharp.MemberAccess.DoResolve (Mono.CSharp.ResolveContext ec) [0x00000] in :0

at Mono.CSharp.Expression.Resolve (Mono.CSharp.ResolveContext ec, ResolveFlags flags) [0x00000] in :0

at Mono.CSharp.MemberAccess.DoResolve (Mono.CSharp.ResolveContext ec, Mono.CSharp.Expression right_side) [0x00000] in :0

at Mono.CSharp.MemberAccess.DoResolve (Mono.CSharp.ResolveContext ec) [0x00000] in :0

at Mono.CSharp.Expression.Resolve (Mono.CSharp.ResolveContext ec, ResolveFlags flags) [0x00000] in :0

at Mono.CSharp.Invocation.DoResolve (Mono.CSharp.ResolveContext ec) [0x00000] in :0

at Mono.CSharp.Expression.Resolve (Mono.CSharp.ResolveContext ec, ResolveFlags flags) [0x00000] in :0

at Mono.CSharp.Expression.Resolve (Mono.CSharp.ResolveContext ec) [0x00000] in :0

at Mono.CSharp.ExpressionStatement.ResolveStatement (Mono.CSharp.BlockContext ec) [0x00000] in :0

at Mono.CSharp.StatementExpression.Resolve (Mono.CSharp.BlockContext ec) [0x00000] in :0

at Mono.CSharp.Block.Resolve (Mono.CSharp.BlockContext ec) [0x00000] in :0

at Mono.CSharp.If.Resolve (Mono.CSharp.BlockContext ec) [0x00000] in :0

at Mono.CSharp.Block.Resolve (Mono.CSharp.BlockContext ec) [0x00000] in :0

at Mono.CSharp.ToplevelBlock.Resolve (Mono.CSharp.FlowBranching parent, Mono.CSharp.BlockContext rc, Mono.CSharp.ParametersCompiled ip, IMethodData md) [0x00000] in :0

— End of inner exception stack trace —

at Mono.CSharp.TypeContainer.EmitConstructors () [0x00000] in :0

at Mono.CSharp.TypeContainer.EmitType () [0x00000] in :0

at Mono.CSharp.RootContext.EmitCode () [0x00000] in :0

at Mono.CSharp.Driver.Compile () [0x00000] in :0

at Mono.CSharp.Driver.Main (System.String[ ] args) [0x00000] in :0 ]

2

You need to set the .NET Compatibility in the player settings to a different subset.

3

im not sure what you Mean

4

can you give me more Detail Im really Not good at the scripting thing

5

Use .NET 2.0 instead of .NET 2.0 subset in API Compatibility Level

6

OO i think i got it

7

okay how to i make it .NET 2.0
sorry if im being Hard to work with

8

Edit>Project Settings>Player

It’s under Other Settings in the inspector pane

9

okay so how do i make it a .NET 2.0 like where do i get to the API at?

10

It’s a dropdown, just set it to .NET 2.0

11

that didn’t work

12

i have it set to NET 2.0 nothing

13

Usually an issue with importing an assembly comes down to that. As we can tell now that isn’t the case. Have you tried importing Photon into a blank project?

14

yeah and it works if i have Photon on its own Project at first now i tried putting it on my main Project and i can’t get it to work

15

this is what i watched to get this far
yeah i Used his Project from EP 10 and fixed all the Errors then i hit this one and couldn’t
get this one to work

16

so do you know what to do?

17

Hey Bro you got Anymore Ideas?