IntelliJ IDEA: How to disable "Code Generation"? - intellij-idea

I'd like to know how can I disable "Code Generation" message which keeps on showing as I type code. My auto completion lags a bit so I'd like to experiment a
little to see if disabling it will speed up my IDE.
IDE Info:
IntelliJ IDEA 2016.2
Build #IC-162.1121.32, built on July 9, 2016
JRE: 1.8.0_45-b14 amd64
JVM: Java HotSpot(TM) 64-Bit Server VM by Oracle Corporation
Regards,
Ezekiel

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IntelliJ Community edition hangs a lot while typing

I am using IntelliJ Community edition for for Automation test using Java. I have observed that IntelliJ stops responding for while when I am typing. Some times it takes like 1 to 2 minutes to respond while I type. Even it goes blank when I switch the windows between the applications.
I am using:
**OS:** Windows 10 Pro, 64 bit OS
**IntelliJ version:**
IntelliJ IDEA 2020.1.4 (Community Edition)
Build #IC-201.8743.12, built on July 21, 2020
Runtime version: 11.0.7+10-b765.65 amd64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
Windows 10 10.0
GC: ParNew, ConcurrentMarkSweep
Memory: 1981M
Cores: 8
Non-Bundled Plugins: gherkin, cucumber-java
Does anybody is facing this issue?

How to make the function (f1...f10) keyboard shortcuts work in IntelliJ

I've noticed that throughout IntelliJ on MacOS, the keyboard shortcuts for anything like command+f2...f10 don't work. Neither do they trigger anything in the OS to the question is what program is catching these keyboard events. Is there any way to force IntelliJ to get them when IntelliJ is open? This happens even if the IntelliJ window is maximized/fullscreen. All other keyboard shortcuts work.
Specs:
IntelliJ IDEA 2018.2.4 (Ultimate Edition)
Build #IU-182.4505.22, built on September 18, 2018
Licensed to ****
You have a perpetual fallback license for this version
Subscription is active until January 18, 2020
JRE: 1.8.0_152-release-1248-b8 x86_64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
macOS 10.14.1
As #y.bedrov kindly pointed out, go to System Preferences->Keyboard and select "Use all F1, F2, etc. as standard function keys." option enabled in "System Preferences -> Keyboard". Then it works :)

IntelliJ IDEA can't show some code characters on a regular basis

As you can see, in my IntelliJ IDEA, some code characters were hidden on the editor. After restarting the IDE, the problem will be solved occasionally. Why did it happen?
Issue:
IDE and OS:
IntelliJ IDEA 2017.1.2
Build #IU-171.4249.39, built on April 25, 2017
JRE: 1.8.0_112-release-736-b16 x86_64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
Mac OS X 10.13.3
Note:
I've tried to switch IDE boot JDK to oracleJDK, it seems to solve the problem mentioned above, but some of the features of the IDE have failed :(

Not able to view Dotty option while creating scala project in Intellij IDEA

I have Intellij IDEA. Below are the details about it.
IntelliJ IDEA 2017.2.5
Build #IU-172.4343.14, built on September 26, 2017
Licensed to Rajkumar Natrajan
JRE: 1.8.0_152-release-915-b12 x86_64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
Mac OS X 10.12.6
I have latest scala plugin for IntelliJ installed as well.
But when I try to create the dotty project using the documentation here, I couldn't see the option. Below is the screen shot.
Do I miss any settings?
Choose SBT first, then on the next step you will be able to select Dotty:
Related ticket.

Analysis error, but compilation successful

My compilation (gradle compileJava is successful). Even Build->Make Project does not show any errors. However there is one Java file, which is showing an Analysis error 1 Error found and I get the below error in the balloon message.
Ambiguous method call. Both
apply(SpringSocialConfigurer) in AbstractConfiguredSecurityBuilder and
apply(SpringSocialConfigurer) in AbstractConfiguredSecurityBuilder match
My IntelliJ version and other details below
IntelliJ IDEA (Community Edition) IC-144.4199.23
Build #IC-144.4199, built on February 19, 2016
JRE: 1.8.0_40-release-b132 x86_64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
I had the same issue. Upgrading to newest version of IDEA solved the problem.
I have now Idea Community Edition, build: IC-145.597.3, and this is fixed.