getCoreVersion results in empty String

[jmmprodukts]

Basic Infos

• This issue complies with the issue POLICY doc.
• I have read the documentation at readthedocs and the issue is not addressed there.
• I have tested that the issue is present in current master branch (aka latest git).
• I have searched the issue tracker for a similar issue.
• If there is a stack dump, I have decoded it.
• I have filled out all fields below.

Platform

• Hardware: [ESP-12|ESP-01|ESP-07|ESP8285 device|other]
• Core Version: [3.0.0]
• Development Env: [Arduino IDE]
• Operating System: [Windows]

Settings in IDE

• Module: [Wemos D1 mini]
• Flash Mode: [qio|dio|other]
• Flash Size: [4MB/1MB]
• lwip Variant: [v1.4|v2 Lower Memory|Higher Bandwidth]
• Reset Method: [ck|nodemcu]
• Flash Frequency: [40Mhz]
• CPU Frequency: [80Mhz]
• Upload Using: [SERIAL]
• Upload Speed: [115200)

Problem Description

getCoreVersion results in empty String

MCVE Sketch

void setup() {
Serial.begin(115200);
Serial.println(""); Serial.println(""); Serial.println("");
Serial.println("Booting : ");
Serial.println("");
display_Running_Sketch_Serial();
}

void display_Running_Sketch_Serial(void){ // displays at startup the Sketch running in the Arduino
//String Compiled = String(F(DATE))+ ", "+String(F(TIME))+", "+String(F(VERSION));
//int Arduino_IDE_version=ARDUINO;
Serial.print("Sketch Compiled : #" + String(F(DATE))+ ", "+String(F(TIME))+", "+String(F(VERSION))); Serial.print("#\r\n");
Serial.print("Arduino version : #" + String (ARDUINO)); Serial.print("#\r\n");
Serial.print("ESP SdkVersion : #"); Serial.print(ESP.getSdkVersion()); Serial.print("#\r\n");
Serial.print("ESP CoreVersion : #"); Serial.print(ESP.getCoreVersion()); Serial.print("#\r\n");
Serial.print("ESP FullVersion : #"); Serial.print(ESP.getFullVersion()); Serial.print("#\r\n");
}

void loop() {
// put your main code here, to run repeatedly:
}

Serial output:

Booting :

Sketch Compiled : #May 23 2021, 10:01:19, 10.2.0#
Arduino version : #10813#
ESP SdkVersion : #2.2.2-dev(38a443e)#
ESP CoreVersion : ## <== NOTHING (EMPTY STRING) HERE
ESP FullVersion : #SDK:2.2.2-dev(38a443e)/Core:3.0.0=30000000/lwIP:STABLE-2_1_2_RELEASE/glue:1.2-48-g7421258/BearSSL:c0b69df#

Debug messages go here

[dok-net]

Done with a Git worktree, checkout is master, revision at tagged 3.0.0

At first, the MCVE sketch doesn't compile - removing

Serial.print("Sketch Compiled : #" + String(F(DATE))+ ", "+String(F(TIME))+", "+String(F(VERSION))); Serial.print("#\r\n");

helps with that.
Running results in this on the serial terminal:

Booting : 

Arduino version : #108010#
ESP SdkVersion : #2.2.2-dev(38a443e)#
ESP CoreVersion : #efb0341a#
ESP FullVersion : #SDK:2.2.2-dev(38a443e)/Core:3.0.0=30000000/lwIP:STABLE-2_1_2_RELEASE/glue:1.2-48-g7421258/BearSSL:c0b69df#

Done with Arduino board manager BSP version 3.0.0

Just as invalid as with Git checkout:

Serial.print("Sketch Compiled : #" + String(F(DATE))+ ", "+String(F(TIME))+", "+String(F(VERSION))); Serial.print("#\r\n");

Removed that line, again.
Running:

Booting : 

Arduino version : #108010#
ESP SdkVersion : #2.2.2-dev(38a443e)#
ESP CoreVersion : ##
ESP FullVersion : #SDK:2.2.2-dev(38a443e)/Core:3.0.0=30000000/lwIP:STABLE-2_1_2_RELEASE/glue:1.2-48-g7421258/BearSSL:c0b69df#

[dok-net]

@d-a-v I don't know about the packaging process, do you have an idea what's wrong?

[jmmprodukts]

Plain pasting the code seems to remove underscores. so again the code here enclosed within Back Quotes:

void setup() {
Serial.begin(115200);
Serial.println(""); Serial.println(""); Serial.println("");
Serial.println("Booting : ");
Serial.println("");
display_Running_Sketch_Serial();
}

void display_Running_Sketch_Serial(void){ // displays at startup the Sketch running in the Arduino
//String Compiled = String(F(__DATE__))+ ", "+String(F(__TIME__))+", "+String(F(__VERSION__));
//int Arduino_IDE_version=ARDUINO;
Serial.print("Sketch Compiled : #" + String(F(__DATE__))+ ", "+String(F(__TIME__))+", "+String(F(__VERSION__)));
Serial.print("#\r\n");
Serial.print("Arduino version : #" + String (ARDUINO)); Serial.print("#\r\n");
Serial.print("ESP SdkVersion : #"); Serial.print(ESP.getSdkVersion()); Serial.print("#\r\n");
Serial.print("ESP CoreVersion : #"); Serial.print(ESP.getCoreVersion()); Serial.print("#\r\n");
Serial.print("ESP FullVersion : #"); Serial.print(ESP.getFullVersion()); Serial.print("#\r\n");
}

void loop() {
// put your main code here, to run repeatedly:
}

[JAndrassy]

it is this #8049

[jmmprodukts]

Very likely #8049

[d-a-v]

closing as duplicate, please follow #8049
We're working on it, it will hopefully be fixed with release 3.0.1.