Help with Custom Model Living Entity

Status
Can not reproduce
Issue description

Hey, so i created a entity model and whenever i try to start/test my mod amessage comes up and i says that i can go check the console. But i can't manage to understand what it is saying in the console! Plzz help. 

Issue comments

2 errors
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':compileJava'.
> Compilation failed; see the compiler error output for details.
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
Deprecated Gradle features were used in this build, making it incompatible with Gradle 5.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/4.9/userguide/command_line_interface.html#sec:c…
BUILD FAILED in 9s
1 actionable task: 1 executed
BUILD FAILED
Task completed in 11077 milliseconds
 

Oooh, sorry. Here

 

Executing Gradle task: runClient
Build info: MCreator 2020.2.14217, 1.14.4, 64-bit, 8066 MB, Windows 10, JVM 1.8.0_232, JAVA_HOME: D:\MCreator Folder\MCreator\jdk
> Configure project :
New Dep: net.minecraftforge:forge:1.14.4-28.2.3_mapped_snapshot_20190719-1.14.3
> Task :compileJava FAILED
C:\Users\jespe\MCreatorWorkspaces\smallmod\src\main\java\net\mcreator\smallmod\entity\PenguinEntity.java:157: error: cannot find symbol       public void render(MatrixStack matrixStack, IVertexBuilder buffer, int packedLight, int packedOverlay, float red, float green, float blue,
                         ^
  symbol:   class MatrixStack
  location: class Modelcustom_model
C:\Users\jespe\MCreatorWorkspaces\smallmod\src\main\java\net\mcreator\smallmod\entity\PenguinEntity.java:157: error: cannot find symbol       public void render(MatrixStack matrixStack, IVertexBuilder buffer, int packedLight, int packedOverlay, float red, float green, float blue,
                                                  ^
  symbol:   class IVertexBuilder
  location: class Modelcustom_model
2 errors
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':compileJava'.
> Compilation failed; see the compiler error output for details.
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
Deprecated Gradle features were used in this build, making it incompatible with Gradle 5.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/4.9/userguide/command_line_interface.html#sec:c…
BUILD FAILED in 3s
1 actionable task: 1 executed
BUILD FAILED
Task completed in 5578 milliseconds