https://gtm.you1.cn/app/211/discussions/0/341537388325375716/
This FAQ page explains the problem. Anyway I strongly suggest you to try Hammer++, with many improvements making everything simpler and faster.
https://ficool2.github.io/HammerPlusPlus-Website/index.html

B.n.B AlcyToronto の投稿を引用：

https://gtm.you1.cn/app/211/discussions/0/341537388325375716/
This FAQ page explains the problem. Anyway I strongly suggest you to try Hammer++, with many improvements making everything simpler and faster.
https://ficool2.github.io/HammerPlusPlus-Website/index.html

I've use hammer++ before when just making dumb maps but i don't know how to make it work with the SDK

lampshade collector の投稿を引用：

B.n.B AlcyToronto の投稿を引用：

https://gtm.you1.cn/app/211/discussions/0/341537388325375716/
This FAQ page explains the problem. Anyway I strongly suggest you to try Hammer++, with many improvements making everything simpler and faster.
https://ficool2.github.io/HammerPlusPlus-Website/index.html

I've use hammer++ before when just making dumb maps but i don't know how to make it work with the SDK

Source SDK is broken since the Steampipe update in 2013, you have to use Source2013, and the proper version of Hammer++
"Game/Mod not listed?
You might still be able to use Hammer++ with it.
If it's a multiplayer game or mod, use the Source SDK 2013 Multiplayer download.
For singleplayer, try the Source SDK 2013 Singleplayer download".

B.n.B AlcyToronto の投稿を引用：

lampshade collector の投稿を引用：

I've use hammer++ before when just making dumb maps but i don't know how to make it work with the SDK

Source SDK is broken since the Steampipe update in 2013, you have to use Source2013, and the proper version of Hammer++
"Game/Mod not listed?
You might still be able to use Hammer++ with it.
If it's a multiplayer game or mod, use the Source SDK 2013 Multiplayer download.
For singleplayer, try the Source SDK 2013 Singleplayer download".

how do i add hammer++ to regular Source SDK? When I launch the 2013 version it just launches a half life 2 demo thing. And my mod is for 2009 version. What would happen if i just normally made maps with hammer++ and just exported it into my mod's folder?

lampshade collector の投稿を引用：

I'm making my first sourcemod, that being a portal mod and when i open hammer up and press new it says "Failed to load default scheme file. The map views may be missing some visual elements" and then everything is just black. How do I fix this?

If you want to make a Portal mod you just make a map pack since the code isn't open source. You can find hammer in the bin folder. It's also where you would install Hammer++.

There's some tutorials out there on how to make a Portal mod but you would essentially be setting up an empty mod folder that has a gameinfo.txt that points to the base portal game folder for the dlls.

Wazanator の投稿を引用：

lampshade collector の投稿を引用：

I'm making my first sourcemod, that being a portal mod and when i open hammer up and press new it says "Failed to load default scheme file. The map views may be missing some visual elements" and then everything is just black. How do I fix this?

If you want to make a Portal mod you just make a map pack since the code isn't open source. You can find hammer in the bin folder. It's also where you would install Hammer++.

There's some tutorials out there on how to make a Portal mod but you would essentially be setting up an empty mod folder that has a gameinfo.txt that points to the base portal game folder for the dlls.

is it possible to just make maps using the hammer++ i have in the portal files and then just export them into my mod's map folder?

Yes

Here you will find this useful as well https://developer.valvesoftware.com/wiki/Making_Your_Portal_Mod

Wazanator の投稿を引用：

Here you will find this useful as well https://developer.valvesoftware.com/wiki/Making_Your_Portal_Mod

I'm actually currently using that as a guide, but thanks for the suggestion