Running examples in ‘klassR-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: update_klass_node
> ### Title: Given a node and a graph, find the node at the end of a sequence
> ###   of changes.
> ### Aliases: update_klass_node
> 
> ### ** Examples
> 
> 
> # Build a graph directed towards the most recent codes.
> library(klassR)
> klass_131 <- klass_graph(131)
Connection failed with error code 502
Error: Argument 'txt' must be a JSON string, URL or file.
Execution halted
Running examples in ‘klassR-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: update_klass_node
> ### Title: Given a node and a graph, find the node at the end of a sequence
> ###   of changes.
> ### Aliases: update_klass_node
> 
> ### ** Examples
> 
> 
> # Build a graph directed towards the most recent codes.
> library(klassR)
> klass_131 <- klass_graph(131)
Connection failed with error code 502
Error: Argument 'txt' must be a JSON string, URL or file.
Execution halted
Running examples in ‘klassR-Ex.R’ failed
The error most likely occurred in:

> ### Name: update_klass_node
> ### Title: Given a node and a graph, find the node at the end of a sequence
> ###   of changes.
> ### Aliases: update_klass_node
> 
> ### ** Examples
> 
> 
> # Build a graph directed towards the most recent codes.
> library(klassR)
> klass_131 <- klass_graph(131)
Connection failed with error code 502
Error: Argument 'txt' must be a JSON string, URL or file.
Execution halted
Running examples in ‘klassR-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: update_klass_node
> ### Title: Given a node and a graph, find the node at the end of a sequence
> ###   of changes.
> ### Aliases: update_klass_node
> 
> ### ** Examples
> 
> 
> # Build a graph directed towards the most recent codes.
> library(klassR)
> klass_131 <- klass_graph(131)
Connection failed with error code 502
Error: Argument 'txt' must be a JSON string, URL or file.
Execution halted
Running examples in ‘klassR-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: update_klass_node
> ### Title: Given a node and a graph, find the node at the end of a sequence
> ###   of changes.
> ### Aliases: update_klass_node
> 
> ### ** Examples
> 
> 
> # Build a graph directed towards the most recent codes.
> library(klassR)
> klass_131 <- klass_graph(131)
Connection failed with error code 502
Error: Argument 'txt' must be a JSON string, URL or file.
Execution halted