Jul
5
2016

Android: MissingMethodException: Method not found: ‘Default constructor not found…

An article by mgear

Suddenly started getting these error messages on device (build worked fine otherwise, but tcp socket stopped working)
You can view device log with command line> adb logcat -s Unity ActivityManager PackageManager dalvikvm DEBUG

Solutions:
– Use IL2CPP build instead of Mono2x
– Or, set Stripping Level: Disabled (any other stripping level didn’t work)

Probably the cause was changing Api Compatibility Level from “.net 2.0 Subset” into “.net 2.0”..


I/Unity   (20578): MissingMethodException: Method not found: 'Default constructor not found...ctor() of System.Configuration.ExeConfigurationHost'.

I/Unity   (20578):   at System.Activator.CreateInstance (System.Type type, Boolean nonPublic) [0x00000] in <filename unknown>:0

I/Unity   (20578):   at System.Activator.CreateInstance (System.Type type) [0x00000] in <filename unknown>:0

I/Unity   (20578):   at System.Configuration.InternalConfigurationSystem.Init (System.Type typeConfigHost, System.Object[] hostInitParams) [0x00000] in <filename unknown>:0

I/Unity   (20578):   at System.Configuration.InternalConfigurationFactory.Create (System.Type typeConfigHost, System.Object[] hostInitConfigurationParams) [0x00000] in <filename unknown>:0

I/Unity   (20578):   at System.Configuration.ConfigurationManager.OpenExeConfigurationInternal (ConfigurationUserLevel userLevel, System.Reflection.Assembly calling_assembly, System.String exePath) [0x00000] in <filename unknown>:0

I/Unity   (20578):   at System.Configuration.ClientConfigurationSystem.get_Configuration () [0x00000] in <filename unknown>:0

I/Unity   (20578): Rethrow as ConfigurationErrorsException: Erro

I/Unity   (20578): MissingMethodException: Method not found: 'Default constructor not found...ctor() of System.Configuration.ExeConfigurationHost'.

I/Unity   (20578):   at System.Activator.CreateInstance (System.Type type, Boolean nonPublic) [0x00000] in <filename unknown>:0

I/Unity   (20578):   at System.Activator.CreateInstance (System.Type type) [0x00000] in <filename unknown>:0

I/Unity   (20578):   at System.Configuration.InternalConfigurationSystem.Init (System.Type typeConfigHost, System.Object[] hostInitParams) [0x00000] in <filename unknown>:0

I/Unity   (20578):   at System.Configuration.InternalConfigurationFactory.Create (System.Type typeConfigHost, System.Object[] hostInitConfigurationParams) [0x00000] in <filename unknown>:0

I/Unity   (20578):   at System.Configuration.ConfigurationManager.OpenExeConfigurationInternal (ConfigurationUserLevel userLevel, System.Reflection.Assembly calling_assembly, System.String exePath) [0x00000] in <filename unknown>:0

I/Unity   (20578):   at System.Configuration.ClientConfigurationSystem.get_Configuration () [0x00000] in <filename unknown>:0

I/Unity   (20578): Rethrow as ConfigurationErrorsException: Erro

D/dalvikvm(20578): Trying to load lib /data/app-lib/com.app.someapp-315/libvrunity.so 0x42db5ef8

D/dalvikvm(20578): Shared lib '/data/app-lib/com.app.someapp-315/libvrunity.so' already loaded in same CL 0x42db5ef8

D/dalvikvm(20578): Trying to load lib /data/app-lib/com.app.someapp-315/libvrunity.so 0x42db5ef8

D/dalvikvm(20578): Shared lib '/data/app-lib/com.app.someapp-315/libvrunity.so' already loaded in same CL 0x42db5ef8

I/Unity   (20578): MissingMethodException: Method not found: 'Default constructor not found...ctor() of System.Configuration.ExeConfigurationHost'.

I/Unity   (20578):   at System.Activator.CreateInstance (System.Type type, Boolean nonPublic) [0x00000] in <filename unknown>:0

I/Unity   (20578):   at System.Activator.CreateInstance (System.Type type) [0x00000] in <filename unknown>:0

I/Unity   (20578):   at System.Configuration.InternalConfigurationSystem.Init (System.Type typeConfigHost, System.Object[] hostInitParams) [0x00000] in <filename unknown>:0

I/Unity   (20578):   at System.Configuration.InternalConfigurationFactory.Create (System.Type typeConfigHost, System.Object[] hostInitConfigurationParams) [0x00000] in <filename unknown>:0

I/Unity   (20578):   at System.Configuration.ConfigurationManager.OpenExeConfigurationInternal (ConfigurationUserLevel userLevel, System.Reflection.Assembly calling_assembly, System.String exePath) [0x00000] in <filename unknown>:0

I/Unity   (20578):   at System.Configuration.ClientConfigurationSystem.get_Configuration () [0x00000] in <filename unknown>:0

I/Unity (20578): Rethrow as ConfigurationErrorsException: Erro