fix some more error messages

Author: HJfod

src/sdk.rs

@@ -459,7 +459,12 @@ fn set_sdk_path(path: PathBuf, do_move: bool) {
 		let old = std::env::var("GEODE_SDK").map(PathBuf::from)
 			.expect("Cannot locate SDK.");
 
-		assert!(old.is_dir(), "Internal Error: $GEODE_SDK doesn't point to a directory. Please reinstall the Geode SDK");
+		assert!(old.is_dir(), 
+			"Internal Error: GEODE_SDK doesn't point to a directory ({}). This \
+			might be caused by having run `geode sdk set-path` - try restarting \
+			your terminal / computer, or reinstall using `geode sdk install --reinstall`",
+			old.display()
+		);
 		assert!(old.join("VERSION").exists(), "Internal Error: $GEODE_SDK/VERSION not found. Please reinstall the Geode SDK.");
 		assert!(!path.exists(), "Cannot move SDK to existing path {}", path.to_str().unwrap());
 

src/util/config.rs

@@ -140,7 +140,7 @@ impl Config {
 			.borrow()
 	}
 
-	pub fn try_sdk_path() -> Result<PathBuf, &'static str> {
+	pub fn try_sdk_path() -> Result<PathBuf, String> {
 		let sdk_var = std::env::var("GEODE_SDK")
 			.map_err(|_|
 				"Unable to find Geode SDK (GEODE_SDK isn't set). Please install \
@@ -152,11 +152,17 @@ impl Config {
 
 		let path = PathBuf::from(sdk_var);
 		if !path.is_dir() {
-			return Err("Internal Error: GEODE_SDK doesn't point to a directory. Fix it manually or reinstall using `geode sdk install --reinstall`");
+			return Err(format!(
+				"Internal Error: GEODE_SDK doesn't point to a directory ({}). This \
+				might be caused by having run `geode sdk set-path` - try restarting \
+				your terminal / computer, or reinstall using `geode sdk install --reinstall`",
+				path.display()
+			));
 		}
 		if !path.join("VERSION").exists() {
 			return Err(
-				"Internal Error: GEODE_SDK/VERSION not found. Please reinstall the Geode SDK using `geode sdk install --reinstall`"
+				"Internal Error: GEODE_SDK/VERSION not found. Please reinstall \
+				the Geode SDK using `geode sdk install --reinstall`".into()
 			);
 		}