Need Help screen getting Invalid value for left-side of expression error

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1

Running the debugger on Visual Studio Code on a Roku channel I am creating and I am getting an Invalid value for left-side of expression error pointing at: screen = CreateObject(“roSGScreen”)

Here is the debugger output and main.brs code. Very new to this and would appreciate some help.

Output:

04-13 22:15:03.483 [scrpt.ctx.run.enter] UI: Entering ‘NationExtremeWrestling’, id ‘dev’
------ Running dev ‘NationExtremeWrestling’ main ------
BrightScript Micro Debugger.
Enter any BrightScript statement, debug commands, or HELP.
Current Function:
001: sub Main()
002: m.top.global = {
003: api_key: “AIzaSyCn9WZzbJdT7XsQOuLYv-kQNmCFbUQ2jQI”,
004:* youTubeApiBaseUrl: “https://www.googleapis.com/youtube/v3/”
005: }
006:
007: screen = CreateObject(“roSGScreen”)
008: m.port = CreateObject(“roMessagePort”)
Source Digest(s):
pkg: dev 0.0.0 b434e374 NationExtremeWrestling
Invalid value for left-side of expression. (runtime error &he4) in pkg:/source/main.brs(4)
Backtrace:
#0 Function main() As Void
file/line: pkg:/source/main.brs(7)
Local Variables:
global Interface:ifGlobal
m roAssociativeArray refcnt=2 count:0
screen
scene
msg

Main.brs:

sub Main()
m.top.global = {
api_key: “AIzaSyCn9WZzbJdT7XsQOuLYv-kQNmCFbUQ2jQI”,
youTubeApiBaseUrl: “https://www.googleapis.com/youtube/v3/”
}

screen = CreateObject(“roSGScreen”)
m.port = CreateObject(“roMessagePort”)
screen.setMessagePort(m.port)

scene = screen.CreateScene(“VideoScene”)
screen.show()

while true
msg = wait(0, m.port)
if type(msg) = “roSGScreenEvent”
if msg.isScreenClosed() then exit while
end if
end while
end sub

2

The error message is actually complaining about line 4:

Invalid value for left-side of expression. (runtime error &he4) in pkg:/source/main.brs(4)

I don’t think you are allowed to completely reassign m.top.global. so try doing m.top.global.api_key = “AIzaSyCn9WZzbJdT7XsQOuLYv-kQNmCFbUQ2jQI”

m.top.global.youTubeApiBaseUrl = “https://www.googleapis.com/youtube/v3”

Also, m.top.global.might not be assigned at that phase.of the app. So it might still fail.

3

Thanks so much, fixed the error and you were right, it doesn’t seem like it has been assigned so there was a failure. Will work on it some more. Thanks again!

4

m.global isn’t available in the main thread by default. We usually do something like this in our apps

sub main()
    ...stuff
    screen = createObject("roSGScreen")
    m.global = screen.getGlobalNode()
    ...more stuff
end sub