I've been using Atmel 7 + beta plugin and started to have problems with an open source library that previously worked with 6.2.  Moreover, the compile results are seemingly erratic (to my relatively untrained eye )

The output below is based on example code that comes with the Dallas Temperature library.  I've gotten the same results with the MAX31850_Dallas Temp library. Seeing this with other code that previously compiled/ran, thought using examples provided by library would take my coding errors out of the equation. 

I greatly appreciate any help.  Please lemmi know what other information is needed to get this resolved.  Many thanks.....jim

Dallas Temperature library
Tester example program
Compiler warnings on, 
Off: auto debug, tutorial mode, verbose messaging
Build completes with one warning:
Compiling 'Tester' for 'Arduino/Genuino Mega w/ ATmega2560 (Mega 2560)'
DallasTemperature.cpp:In member function 'float DallasTemperature::calculateTemperature(uint8_t*, uint8_t*)
DallasTemperature.cpp:456:1: warning: control reaches end of non-void function [-Wreturn-type]
Binary sketch size: 8,466 bytes (used 3% of a 253,952 byte maximum) (0.66 secs)
Minimum Memory Usage: 585 bytes (7% of a 8192 byte maximum)

Turned on auto debug and build has errors:
Compiling debug version of 'Tester' for 'Arduino/Genuino Mega w/ ATmega2560 (Mega 2560)'
DallasTemperature.cpp:In member function 'float DallasTemperature::calculateTemperature(uint8_t*, uint8_t*)
DallasTemperature.cpp:456:1: warning: control reaches end of non-void function [-Wreturn-type]
Tester.pde:5:23: error: variable or field 'printTemperature' declared void
:void printTemperature(DeviceAddress deviceAddress)
Tester.pde:5:23: error: 'DeviceAddress' was not declared in this scope
Tester.pde:7:19: error: variable or field 'printAddress' declared void
:void printAddress(DeviceAddress deviceAddress)
Tester.pde:7:19: error: 'DeviceAddress' was not declared in this scope
Tester.pde:In function 'void setup()
Tester.pde:51:31: error: 'printAddress' was not declared in this scope
:printAddress(tempDeviceAddress)
Error compiling project sources
Note: solution cleaned between tests above.  Also, isn’t always consistent. E.g. sometimes turning on tutorial mode produces the same issue.

thanks for the reply. 
1)  I checked the IDE version and it was newer than 1.6.5, so I installed that.  The 'manage boards' tab of the VM explorer showed 1.6.5 installed
2) issue persisted, build with verbose messages attached.  Still erratic....sometimes with errors, sometimes without.  I clean build between builds.
3) I'm not sure what you mean by the VS version of Visual Micro, it looks like the beta is the only version to use with Atmel.  Please point me to different version if that is what you mean
4) sounds like you think I should transition to the free Visual Studio + Visual Micro.  Makes sense if Visual Studio is now free....after all, how long will Atmel want to make their own now that Visual Studio is free.  Please comment if you can or email directly

thx again....jim

Great to hear that thanks